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Sep 19, 2019
09/19

by
C J Quinn

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Nov 5, 2013
11/13

by
Michael J. Quinn

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Topics: English language -- Rhetoric, Interdisciplinary approach in education, Academic writing

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Sep 25, 2020
09/20

by
Brisben, J. Quinn, author

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94 pages : 23 cm

Topics: Brisben, J. Quinn, American poetry -- 20th century, American poetry -- 21st century, Poets,...

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Sep 17, 2013
09/13

by
John J. Quinn; Arkadiusz Wojs; Jennifer J. Quinn; Arthur Benjamin

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A Fermion to Boson transformation is accomplished by attaching to each Fermion a single flux quantum oriented opposite to the applied magnetic field. When the mean field approximation is made in the Haldane spherical geometry, the Fermion angular momentum $l_F$ is replaced by $l_B= l_F-{1\over2}(N-1)$. The set of allowed total angular momentum multiplets is identical in the two different pictures. The Fermion and Boson energy spectra in the presence of many body interactions are identical if...

Source: http://arxiv.org/abs/cond-mat/0007481v1

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Sep 22, 2013
09/13

by
John J. Quinn; Arkadiusz Wojs; Jennifer J. Quinn; Arthur T. Benjamin

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A Fermion to Boson transformation is accomplished by attaching to each Fermion a tube carrying a single quantum of flux oriented opposite to the applied magnetic field. When the mean field approximation is made in Haldane's spherical geometry, the Fermion angular momentum l_F is replaced by l_B=l_F-(N-1)/2. The set of allowed total angular momentum multiplets is identical in the two different pictures. The Fermion and Boson energy spectra in the presence of many body interactions are identical...

Source: http://arxiv.org/abs/cond-mat/0011087v1

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Sep 22, 2013
09/13

by
John J. Quinn; Arkadiusz Wojs; Kyung-Soo Yi; Jennifer J. Quinn

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The occurrence of incompressible quantum fluid states of a two dimensional system is a result of electron--electron interactions in a highly degenerate fractionally filled Landau level. Novel quasiparticles (QP's) called composite Fermions (CF's) have allowed a simple single particle description of the most prominent incompressible states. Residual interactions among these QP's are investigated. These interactions determine the type of "daughter states" that can occur at the next...

Source: http://arxiv.org/abs/cond-mat/0308407v1

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Apr 18, 2015
04/15

by
J. Quinn Thornton (1810-1888)

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History of the Provisional Government of Oregon by J. Quinn Thornton (1810-1888), former judge of the Supreme Court of the Provisional Government History of the Provisional Government of the Oregon Territory written for the annual publication of the Oregon Pioneer Association. First published in the book "Constitution and Quotations from the Register of the Oregon Pioneer Association, Together with the Annual Address of Hon. S.F. Chadwick, Remarks of Gov. L.F. Grover, at Reunion, June...

Topics: Oregon Pioneer Society, Oregon Pioneer Association, Pacific Northwest history, Oregon, fraternal...

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Sep 17, 2013
09/13

by
Arkadiusz Wojs; John J. Quinn

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The photoluminescence (PL) spectrum of a two-dimensional electron gas (2DEG) in the fractional quantum Hall regime is studied as a function of the separation $d$ between the electron and valence hole layers. The abrupt change in the response of the 2DEG to the optically injected hole at $d$ of the order of the magnetic length $\lambda$ results in a complete reconstruction of the PL spectrum. At $d 2\lambda$, depending on the filling factor $\nu$, the hole either decouples from the 2DEG to form...

Source: http://arxiv.org/abs/cond-mat/0007216v1

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Sep 21, 2013
09/13

by
Arkadiusz Wojs; John J. Quinn

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The mean field (MF) composite Fermion (CF) picture successfully predicts low lying states of fractional quantum Hall systems. This success cannot be attributed to a cancellation between Coulomb and Chern-Simons interactions beyond the mean field and solely depends on the short range (SR) of the Coulomb pseudopotential in the lowest Landau level (LL). The class of pseudopotentials for which the MFCF picture can be applied is defined. The success or failure of the MFCF picture in various systems...

Source: http://arxiv.org/abs/cond-mat/9905265v1

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Sep 22, 2013
09/13

by
John J Quinn; Arkadiusz Wojs

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The formation and possible decay processes of neutral and charged excitonic complexes in electronic integral and fractional quantum Hall systems are discussed. The excitonic complexes are bound states of a small number of the relevant negatively and positively charged quasiparticles (e.g., conduction electrons and valence holes, reversed-spin electrons and spin holes, Laughlin quasielectrons and quasiholes, composite Fermions) that can occur in a 2D electron in the presence of a strong magnetic...

Source: http://arxiv.org/abs/cond-mat/0308410v1

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Sep 20, 2013
09/13

by
Arkadiusz Wojs; John J. Quinn

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The mean field composite Fermion (MFCF) picture has been qualitatively successful when applied to electrons (or holes) in the lowest Landau level. Because the energy scales associated with Coulomb interactions and with Chern-Simons gauge field interactions are different, there is no rigorous justification of the qualitative success of the MFCF picture. Here we show that what the MFCF picture does is to select from all the allowed angular momentum (L) multiplets of N electrons on a sphere, a...

Source: http://arxiv.org/abs/cond-mat/9810078v1

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Sep 19, 2013
09/13

by
Arkadiusz Wojs; John J. Quinn

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The photoluminescence (PL) spectrum of a two-dimensional electron gas (2DEG) in the fractional quantum Hall regime is studied. The response of the 2DEG to an optically injected valence hole depends on the separation d between the electron and hole layers. At d smaller than the magnetic length lambda, the PL spectrum shows recombination of neutral (X) and charged (X-) excitons. At d>lambda, the hole binds one or two Laughlin quasielectrons (QE) of the 2DEG to form fractionally charged...

Source: http://arxiv.org/abs/cond-mat/0010438v1

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Sep 18, 2013
09/13

by
Arkadiusz Wojs; John J. Quinn

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The mean field composite Fermion (CF) picture successfully predicts angular momenta of multiplets forming the lowest energy band in fractional quantum Hall (FQH) systems. This success cannot be attributed to a cancellation between Coulomb and Chern-Simons interactions beyond the mean field, because these interactions have totally different energy scales. Rather, it results from the behavior of the Coulomb pseudopotential V(L) (pair energy as a function of pair angular momentum) in the lowest...

Source: http://arxiv.org/abs/cond-mat/9903145v3

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Sep 20, 2013
09/13

by
Arkadiusz Wojs; John J. Quinn

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The success of the mean field composite Fermion (MFCF) picture in predicting the lowest energy band of angular momentum multiplets in fractional quantum Hall systems cannot be found in a cancellation between the Coulomb and Chern--Simons interactions beyond the mean field, due to their totally different energy scales. We show that the MFCF approximation can be regarded as a kind of semi-empirical Hund's rule for monopole harmonics. The plausibility of the rule is easily established, but...

Source: http://arxiv.org/abs/cond-mat/9810079v1

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Apr 18, 2015
04/15

by
J. Quinn Thornton (1810-1888)

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Oregon and California in 1848 - Volume 1 by J. Quinn Thornton (1810-1888) Contemporary account of pioneer life in the Pacific Coast state of California and the Oregon Territory by Jesse Quinn Thornton, later a Supreme Court Justice of the Provisional Government of Oregon. First published by Harper & Bros., New York, 1849 in two volumes. This is volume 1 of 2. Published in USA prior to 1923, public domain. Digitized by the Google Books project. Uploaded to Archive.org by Tim Davenport...

Topics: Oregon Territory, Washington state history, Oregon, California, Pacific Coast, Pacific Northwest,...

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Sep 21, 2013
09/13

by
Arkadiusz Wojs; John J. Quinn

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Two- and three-body correlations in partially filled degenerate fermion shells are studied numerically for various interactions between the particles. Three distinct correlation regimes are defined, depending on the short-range behavior of the pair pseudopotential. For pseudopotentials similar to those of electrons in the first excited Landau level, correlations at half-filling have a simple three-body form consisting of the maximum avoidance of the triplet state with the smallest relative...

Source: http://arxiv.org/abs/cond-mat/0407448v1

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Sep 22, 2013
09/13

by
Arkadiusz Wojs; John J. Quinn

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The inter-Landau-level spin excitations of quantum Hall states at filling factors nu=2 and 4/3 are investigated by exact numerical diagonalization for the situation in which the cyclotron (hbar*omega_c) and Zeeman (E_Z) splittings are comparable. The relevant quasiparticles and their interactions are studied, including stable spin wave and skyrmion bound states. For nu=2, a spin instability at a finite value of epsilon=hbar*omega_c-E_Z leads to an abrupt paramagnetic to ferromagnetic...

Source: http://arxiv.org/abs/cond-mat/0111532v1

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Jul 20, 2013
07/13

by
Arkadiusz Wojs; John J. Quinn

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The nu=5/2 fractional quantum Hall state is studied numerically, directly including the effects of electron scattering between neighboring Landau levels. Significant reduction of the excitation gap caused by the LL mixing explains the discrepancy between earlier calculations and experiments. On the other hand, LL mixing also considerably reduces overlaps with the Moore--Read wavefunction, raising a question of the actual realization of nonabelian quasiparticles in present experiments.

Source: http://arxiv.org/abs/cond-mat/0609743v1

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Apr 18, 2015
04/15

by
J. Quinn Thornton (1810-1888)

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Oregon and California in 1848 - Volume 2 by J. Quinn Thornton (1810-1888) Contemporary account of pioneer life in the Pacific Coast state of California and the Oregon Territory by Jesse Quinn Thornton, later a Supreme Court Justice of the Provisional Government of Oregon. First published by Harper & Bros., New York, 1849 in two volumes. This is volume 2 of 2. Published in USA prior to 1923, public domain. Digitized by the Google Books project. Uploaded to Archive.org by Tim Davenport...

Topics: Oregon Territory, Washington state history, Oregon, California, Pacific Coast, Pacific Northwest,...

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Sep 19, 2013
09/13

by
John J. Quinn; Arkadiusz Wojs

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If the Zeeman energy is small, the lowest energy excitations of a two dimensional electron gas at filling factor nu=1 are spin waves (spin flip excitations). At nu slightly larger (smaller) than unity, reversed spin electrons (spin holes) can form bound states with K spin waves that are known as skyrmions, S_K^- (antiskyrmions, S_K^+). It is suggested in this work that a valence hole can also bind K spin waves to form an excitonic complex X_K^+, analogous to the S_K^+. One spin hole of the...

Source: http://arxiv.org/abs/cond-mat/0206413v1

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Jul 20, 2013
07/13

by
Arkadiusz Wojs; John J. Quinn

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Binding energies of negative and positive trions in doped GaAs quantum wells in high magnetic fields are studied by exact numerical diagonalization in spherical geometry. Compared to earlier calculations, finite width of the quantum well and its asymmetry caused by one-sided doping are both fully taken into account by using self-consistent subband wave functions in the integration of Coulomb matrix elements, and by inclusion of higher subbands along with several Landau levels in the Hilbert...

Source: http://arxiv.org/abs/cond-mat/0609103v1

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Sep 22, 2013
09/13

by
John J. Quinn; Arkadiusz Wojs

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The composite Fermion (CF) picture offers a simple intuitive way of understanding many of the surprising properties of a strongly interacting two-dimensional electron fluid in a large magnetic field. The simple way in which the mean field CF picture describes the low lying bands of angular momentum multiplets for any value of the applied magnetic field is illustrated and compared with the results of exact numerical diagonalization of small systems. The justification of the success of the CF...

Source: http://arxiv.org/abs/cond-mat/0001426v1

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Sep 21, 2013
09/13

by
John J. Quinn; Arkadiusz Wojs

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The mean field (MF) composite Fermion (CF) picture successfully predicts the band of low lying angular momentum multiplets of fractional quantum Hall systems for any value of the magnetic field. This success cannot be attributed to a cancellation between Coulomb and Chern--Simons interactions between fluctuations beyond the mean field. It results instead from the short range behavior of the Coulomb pseudopotential in the lowest Landau level (LL). The class of pseudopotentials for which the MFCF...

Source: http://arxiv.org/abs/cond-mat/9905334v1

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Sep 23, 2013
09/13

by
Arkadiusz Wojs; John J. Quinn

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The pseudopotentials describing the interactions of quasiparticles in fractional quantum Hall (FQH) states are studied. Rules for the identification of incompressible quantum fluid ground states are found, based upon the form of the pseudopotentials. States belonging to the Jain sequence nu=n/(1+2pn), where n and p are integers, appear to be the only incompressible states in the thermodynamic limit, although other FQH hierarchy states occur for finite size systems. This explains the success of...

Source: http://arxiv.org/abs/cond-mat/9908304v1

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Sep 18, 2013
09/13

by
Arkadiusz Wojs; John J. Quinn

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The energy spectrum of a two-dimensional electron gas (2DEG) in the fractional quantum Hall regime interacting with an optically injected valence band hole is studied as a function of the filling factor $\nu$ and the separation $d$ between the electron and hole layers. The response of the 2DEG to the hole changes abruptly at $d$ of the order of the magnetic length $\lambda$. At $d

Source: http://arxiv.org/abs/cond-mat/0006505v1

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Sep 22, 2013
09/13

by
Arkadiusz Wojs; John J Quinn

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The formation and various possible decay processes of neutral and charged excitonic complexes in electronic integral and fractional quantum Hall systems are discussed. The excitonic complexes are bound states of a small number of the relevant negatively and positively charged quasiparticles (e.g., conduction electrons and valence holes, reversed-spin electrons and spin holes, Laughlin quasielectrons and quasiholes, composite fermions) that occur in an electron system under specific conditions...

Source: http://arxiv.org/abs/cond-mat/0308411v1

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Sep 22, 2013
09/13

by
Arkadiusz Wojs; John J. Quinn

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The form of electron correlations in a partially filled degenerate Landau level (LL) is related to the behavior of the anharmonic part of the interaction pseudopotential. Unlike in the lowest LL, the pseudopotential in the first excited LL is harmonic at short range. As a result, the incompressible states in this LL have different correlations, occur at different filling factors nu, and cannot be described by a composite fermion model. The series of Laughlin-correlated states of electron pairs...

Source: http://arxiv.org/abs/cond-mat/0106016v1

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Sep 23, 2013
09/13

by
Arkadiusz Wojs; John J. Quinn

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Numerical results are presented for the spin excitations of a two-dimensional electron gas confined to a quantum well of width w. Spin waves and charged skyrmion excitations are studied for filling factors nu=1, 3, and 1/3. Phase diagrams for the occurrence of skyrmions of different size as a function of w and the Zeeman energy are calculated. For nu=3, skyrmions occur only if w is larger than about twice the magnetic length. A general necessary condition on the interaction pseudopotential for...

Source: http://arxiv.org/abs/cond-mat/0109549v1

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Sep 23, 2013
09/13

by
Arkadiusz Wojs; John J. Quinn

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Results are presented of detailed numerical calculations for the spin excitation spectra of a two-dimensional electron gas confined in a quantum well of finite width w, at magnetic fields corresponding to the fractional and integral fillings of the lowest and of excited Landau levels. Spin waves and skyrmions are identified, and their mutual interactions are studied at filling factors nu=1/3, 1, 3, and 5. The smallest skyrmions at nu=1/3 are equivalent to composite fermion charged excitons...

Source: http://arxiv.org/abs/cond-mat/0109548v1

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May 17, 2020
05/20

by
D J Quinn; C E Lane

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Sep 19, 2013
09/13

by
George E. Simion; John J. Quinn

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We present a generalization of the composite Fermion picture for a muticomponent quantum Hall plasma which contains particle with different effective charges. The model predicts very well the low-lying states of a $\nu=5/2$ quantum Hall state found in numerical diagonalization.

Source: http://arxiv.org/abs/0910.0828v1

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Sep 21, 2013
09/13

by
George E. Simion; John J. Quinn

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We present a quantitative study of most prominent incompressible quantum Hall states in the partially filled first excited Landau level (LL1) which have been recently studied experimentally by Choi et al. The pseudopotential describing the electron - electron interaction in LL1 is harmonic at short range. It produces a series of incompressible states which is different from its LL0 counterpart. The numerical data indicate that the most prominent states $\nu={5/2}$, 7/3, and 8/3 are not produced...

Source: http://arxiv.org/abs/0712.1222v3

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Sep 23, 2013
09/13

by
Kyung-Soo Yi; J. J. Quinn

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The charge and spin response of a spin--polarized electron gas is investigated including terms beyond the random phase approximation. We evaluate the charge response, the longitudinal and transverse spin response, and the mixed spin--charge response self--consistently in terms of the susceptibility functions of a non--interacting system. Exchange--correlation effects between electrons of spin $\sigma$ and $\sigma^{'}$ are included following Kukkonen and Overhauser, by using spin--polarization...

Source: http://arxiv.org/abs/cond-mat/9607178v1

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Sep 18, 2013
09/13

by
Izabela Szlufarska; Arkadiusz Wojs; John J. Quinn

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The energy and photoluminescence spectra of a two-dimensional electron gas in the fractional quantum Hall regime are studied. The single-particle properties of reversed-spin quasielectrons (QE$_{\rm R}$'s) as well as the pseudopotentials of their interaction with one another and with Laughlin quasielectrons (QE's) and quasiholes (QH's) are calculated. Based on the short-range character of the QE$_{\rm R}$--QE$_{\rm R}$ and QE$_{\rm R}$--QE repulsion, the partially unpolarized incompressible...

Source: http://arxiv.org/abs/cond-mat/0105294v1

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Jul 21, 2017
07/17

by
Thornton, J. Quinn (Jessy Quinn), 1810-1888

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Flake, C.J. Mormon bib.

Topics: Thornton, J. Quinn (Jessy Quinn), 1810-1888, Overland journeys to the Pacific, Mormons

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Sep 22, 2013
09/13

by
Arkadiusz Wojs; John J Quinn; Lucjan Jacak

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The mean field (MF) composite Fermion (CF) picture successfully predicts the low-lying bands of states of fractional quantum Hall systems. This success cannot be attributed to the originally proposed cancellation between Coulomb and Chern--Simons interactions beyond the mean field and solely depends on the short range of the repulsive Coulomb pseudopotential in the lowest Landau level (LL). The class of pseudopotentials is defined for which the MFCF picture can be applied. The success or...

Source: http://arxiv.org/abs/cond-mat/0308409v1

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Sep 20, 2013
09/13

by
Arkadiusz Wojs; Pawel Hawrylak; John J. Quinn

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We study the system of up to four negatively charged magneto-excitons (X-'s) in the spherical geometry, using the exact-diagonalization techniques. At low energies, X-'s are bound and behave like charged particles without internal dynamics. The pseudopotential describing X-:X- scattering is almost identical to that of electrons and the low-lying few X- states correspond to the few-electron states. The total angular momentum of the ground state depends on the effective filling factor nu and...

Source: http://arxiv.org/abs/cond-mat/9810081v1

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Sep 22, 2013
09/13

by
Arkadiusz Wojs; John J. Quinn; Pawel Hawrylak

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Charged magneto-excitons X- in a dilute 2D electron gas in narrow and symmetric quantum wells are studied using exact diagonalization techniques. An excited triplet X- state with a binding energy of about 1 meV is found. This state and the singlet are the two optically active states observed in photoluminescence (PL). The interaction of X-'s with electrons is shown to have short range, which effectively isolates bound X- states from a dilute e-h plasma. This results in the insensitivity of PL...

Source: http://arxiv.org/abs/cond-mat/0001328v1

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Jul 20, 2013
07/13

by
Arkadiusz Wojs; Daniel Wodzinski; John J. Quinn

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Two- and three-body correlations of incompressible quantum liquids are studied numerically. Pairing of composite fermions (CFs) in the 1/3-filled second CF Landau level is found at nu_e=4/11. It is explained by reduced short-range repulsion due to ring-like single-particle charge distribution. Although Moore-Read state of CFs is unstable in the 1/2-filled second CF level, condensation of its quasiholes is a possible origin of incompressibility at nu_e=4/11. Electron pairing occurs at nu_e=7/3...

Source: http://arxiv.org/abs/cond-mat/0604533v1

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Sep 23, 2013
09/13

by
Arkadiusz Wojs; Anna Gladysiewicz; John J. Quinn

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Photoluminescence (PL) has been used to study two-dimensional incompressible electron liquids in high magnetic fields for nearly two decades. However, some of the observed anomalies coincident with the fractional quantum Hall effect are still unexplained. We show that emission in these systems occurs from fractionally charged "quasiexciton" states formed from trions correlated with the surrounding electrons. Their binding and recombination depend on the state of both the electron...

Source: http://arxiv.org/abs/cond-mat/0510095v1

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Jul 20, 2013
07/13

by
Izabela Szlufarska; Arkadiusz Wojs; John J. Quinn

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We study photoluminescence (PL) of charged excitons ($X^-$) in narrow asymmetric quantum wells in high magnetic fields B. The binding of all $X^-$ states strongly depends on the separation $\delta$ of electron and hole layers. The most sensitive is the ``bright'' singlet, whose binding energy decreases quickly with increasing $\delta$ even at relatively small B. As a result, the value of B at which the singlet--triplet crossing occurs in the $X^-$ spectrum also depends on $\delta$ and decreases...

Source: http://arxiv.org/abs/cond-mat/0009251v1

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Sep 20, 2013
09/13

by
Arkadiusz Wojs; Pawel Hawrylak; John J. Quinn

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Systems of up to twelve electrons and six holes on the Haldane sphere are studied by exact numerical diagonalization. The low lying states of the system involve bound excitonic complexes such as (X^n)-. The angular momenta of these complexes and the pseudopotentials describing their interaction are determined. The similarity to the electron pseudopotential suggests the possibility of incompressible ground states of a gas of X- ions for nu

Source: http://arxiv.org/abs/cond-mat/9810082v1

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Sep 22, 2013
09/13

by
Arkadiusz Wojs; John J. Quinn; Pawel Hawrylak

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A theory of charged excitons X- in a dilute 2D electron gas in a high magnetic field is presented. In contrast to previous calculations, three bound X- states (one singlet and two triplets) are found in a narrow and symmetric GaAs quantum well. The singlet and a "bright" triplet are the two optically active states observed in experiments. The bright triplet has the binding energy of about 1 meV, smaller than the singlet and a "dark" triplet. The interaction of bound X-'s...

Source: http://arxiv.org/abs/cond-mat/0001327v1

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Sep 21, 2013
09/13

by
Izabela Szlufarska; Arkadiusz Wojs; John J. Quinn

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We report on the numerical study of the relaxation rates of nuclear spins coupled through the hyperfine interaction to a two dimensional electron gas (2DEG) at magnetic fields corresponding to both fractional and integral Landau level (LL) fillings nu. The Hamiltonians of up to 20 interacting electrons are diagonalized exactly in the spherical geometry, neglecting finite layer width, disorder, and LL mixing. The spectral functions tau^-1(E) describing response of the 2DEG to the reversal of an...

Source: http://arxiv.org/abs/cond-mat/0203160v2

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Aug 10, 2008
08/08

by
Thornton, J. Quinn (Jessy Quinn), 1810-1888

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Book digitized by Google and uploaded to the Internet Archive by user tpb.

Topics: Frontier and pioneer life, Frontier and pioneer life

Source: http://books.google.com/books?id=NAMNAAAAIAAJ&oe=UTF-8

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Jun 28, 2018
06/18

by
Christopher J. Quinn; Ali Pinar; Negar Kiyavash

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We propose algorithms to approximate directed information graphs. Directed information graphs are probabilistic graphical models that depict causal dependencies between stochastic processes in a network. The proposed algorithms identify optimal and near-optimal approximations in terms of Kullback-Leibler divergence. The user-chosen sparsity trades off the quality of the approximation against visual conciseness and computational tractability. One class of approximations contains graphs with...

Topics: Information Theory, Computing Research Repository, Mathematics

Source: http://arxiv.org/abs/1506.04767

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Sep 22, 2013
09/13

by
Izabela Szlufarska; Arkadiusz Wojs; John J. Quinn

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The energy, interaction, and optical properties of reversed-spin quasielectrons (QE_R's) in fractional quantum Hall systems are studied. Based on the short range of the QE_R-QE_R repulsion, a partially unpolarized incompressible nu=4/11 state is postulated within Haldane hierarchy scheme. To describe photoluminescence, a reversed-spin fractionally charged exciton hQE_R (QE_R bound to a valence hole h) is predicted. In contrast to its spin-polarized analog, hQE_R is strongly bound and radiative.

Source: http://arxiv.org/abs/cond-mat/0106017v1

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Sep 18, 2013
09/13

by
S. Mei; P. J. Quinn; D. Silva

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We evaluate the method of optical and infrared Surface Brightness Fluctuations (SBF) as a distance indicator and its application on 8-m class telescopes, such as the Very Large Telescope (VLT). The novelty of our approach resides in the development of Monte Carlo simulations of SBF observations incorporating realistic elliptical galaxy stellar population models, the effects induced by globular clusters and background galaxies, instrumental noise, sky background and PSF blurring. We discuss, for...

Source: http://arxiv.org/abs/astro-ph/0105025v1

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49

Sep 18, 2013
09/13

by
Arkadiusz Wojs; Daniel Wodzinski; John J. Quinn

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Pair-distribution functions g(r) of Laughlin quasielectrons (composite fermions in their second Landau level) are calculated in the fractional quantum Hall states at electron filling factors nu_e=4/11 and 3/8. A shoulder in g(r) is found, supporting the idea of cluster formation. The intra- and inter-cluster contributions to g(r) are identified, largely independent of nu_e. The average cluster sizes are estimated; pairs and triplets of quasielectrons are suggested at nu_e=4/11 and 3/8,...

Source: http://arxiv.org/abs/cond-mat/0505012v1

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4.0

Sep 26, 2019
09/19

by
N J Quinn; K Diele; U Meischner

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