Coexistence of composite bosons and composite fermions in nu = 1/2 + 1/2 quantum Hall bilayers.
In bilayer quantum Hall systems at filling fractions near nu=1/2+1/2, as the spacing d between the layers is continuously decreased, intralayer correlations must be replaced by interlayer correlations, and the composite fermion (CF) Fermi seas at large d must eventually be replaced by a composite bo...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
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2003
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| _version_ | 1826259640406507520 |
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| author | Simon, S Rezayi, E Milovanovic, M |
| author_facet | Simon, S Rezayi, E Milovanovic, M |
| author_sort | Simon, S |
| collection | OXFORD |
| description | In bilayer quantum Hall systems at filling fractions near nu=1/2+1/2, as the spacing d between the layers is continuously decreased, intralayer correlations must be replaced by interlayer correlations, and the composite fermion (CF) Fermi seas at large d must eventually be replaced by a composite boson (CB) condensate or "111 state" at small d. We propose a scenario where CBs and CFs coexist in two interpenetrating fluids in the transition. Trial wave functions describing these mixed CB-CF states compare very favorably with exact diagonalization results. A Chern-Simons transport theory is constructed that is compatible with experiment. |
| first_indexed | 2024-03-06T18:53:03Z |
| format | Journal article |
| id | oxford-uuid:10e5bf67-c2e0-455e-9700-1cd85ac9b1e2 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T18:53:03Z |
| publishDate | 2003 |
| record_format | dspace |
| spelling | oxford-uuid:10e5bf67-c2e0-455e-9700-1cd85ac9b1e22022-03-26T09:59:04ZCoexistence of composite bosons and composite fermions in nu = 1/2 + 1/2 quantum Hall bilayers.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:10e5bf67-c2e0-455e-9700-1cd85ac9b1e2EnglishSymplectic Elements at Oxford2003Simon, SRezayi, EMilovanovic, MIn bilayer quantum Hall systems at filling fractions near nu=1/2+1/2, as the spacing d between the layers is continuously decreased, intralayer correlations must be replaced by interlayer correlations, and the composite fermion (CF) Fermi seas at large d must eventually be replaced by a composite boson (CB) condensate or "111 state" at small d. We propose a scenario where CBs and CFs coexist in two interpenetrating fluids in the transition. Trial wave functions describing these mixed CB-CF states compare very favorably with exact diagonalization results. A Chern-Simons transport theory is constructed that is compatible with experiment. |
| spellingShingle | Simon, S Rezayi, E Milovanovic, M Coexistence of composite bosons and composite fermions in nu = 1/2 + 1/2 quantum Hall bilayers. |
| title | Coexistence of composite bosons and composite fermions in nu = 1/2 + 1/2 quantum Hall bilayers. |
| title_full | Coexistence of composite bosons and composite fermions in nu = 1/2 + 1/2 quantum Hall bilayers. |
| title_fullStr | Coexistence of composite bosons and composite fermions in nu = 1/2 + 1/2 quantum Hall bilayers. |
| title_full_unstemmed | Coexistence of composite bosons and composite fermions in nu = 1/2 + 1/2 quantum Hall bilayers. |
| title_short | Coexistence of composite bosons and composite fermions in nu = 1/2 + 1/2 quantum Hall bilayers. |
| title_sort | coexistence of composite bosons and composite fermions in nu 1 2 1 2 quantum hall bilayers |
| work_keys_str_mv | AT simons coexistenceofcompositebosonsandcompositefermionsinnu1212quantumhallbilayers AT rezayie coexistenceofcompositebosonsandcompositefermionsinnu1212quantumhallbilayers AT milovanovicm coexistenceofcompositebosonsandcompositefermionsinnu1212quantumhallbilayers |