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Wilson fermions and axion electrodynamics in optical lattices
We show that ultracold Fermi gases in optical superlattices can be used as quantum simulators of relativistic lattice fermions in 3+1 dimensions. By exploiting laser-assisted tunneling, we find an analogue of the so-called naive Dirac fermions, and thus provide a realization of the fermion doubling...
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| Published in: | Physical review letters 2010-11, Vol.105 (19), p.190404-190404, Article 190404 |
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| Main Authors: | , , , , , |
| Format: | Article |
| Language: | English |
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| cited_by | cdi_FETCH-LOGICAL-c404t-4668f0d19691112ccf11a720c9cc946225ede44315f54b2f74b4a64a06f09a4c3 |
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| cites | cdi_FETCH-LOGICAL-c404t-4668f0d19691112ccf11a720c9cc946225ede44315f54b2f74b4a64a06f09a4c3 |
| container_end_page | 190404 |
| container_issue | 19 |
| container_start_page | 190404 |
| container_title | Physical review letters |
| container_volume | 105 |
| creator | Bermudez, A Mazza, L Rizzi, M Goldman, N Lewenstein, M Martin-Delgado, M A |
| description | We show that ultracold Fermi gases in optical superlattices can be used as quantum simulators of relativistic lattice fermions in 3+1 dimensions. By exploiting laser-assisted tunneling, we find an analogue of the so-called naive Dirac fermions, and thus provide a realization of the fermion doubling problem. Moreover, we show how to implement Wilson fermions, and discuss how their mass can be inverted by tuning the laser intensities. In this regime, our atomic gas corresponds to a phase of matter where Maxwell electrodynamics is replaced by axion electrodynamics: a 3D topological insulator. |
| doi_str_mv | 10.1103/physrevlett.105.190404 |
| format | article |
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By exploiting laser-assisted tunneling, we find an analogue of the so-called naive Dirac fermions, and thus provide a realization of the fermion doubling problem. Moreover, we show how to implement Wilson fermions, and discuss how their mass can be inverted by tuning the laser intensities. In this regime, our atomic gas corresponds to a phase of matter where Maxwell electrodynamics is replaced by axion electrodynamics: a 3D topological insulator.</abstract><cop>United States</cop><pmid>21231153</pmid><doi>10.1103/physrevlett.105.190404</doi><tpages>1</tpages></addata></record> |
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| ispartof | Physical review letters, 2010-11, Vol.105 (19), p.190404-190404, Article 190404 |
| issn | 0031-9007 1079-7114 |
| language | eng |
| recordid | cdi_osti_scitechconnect_21541670 |
| source | American Physical Society:Jisc Collections:APS Read and Publish 2023-2025 (reading list) |
| subjects | AXIONS BOSONS CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ELECTRODYNAMICS ELECTROMAGNETIC RADIATION ELEMENTARY PARTICLES ENERGY RANGE FERMI GAS FERMIONS GOLDSTONE BOSONS LASER RADIATION MATHEMATICS PHYSICS OF ELEMENTARY PARTICLES AND FIELDS POSTULATED PARTICLES RADIATIONS RELATIVISTIC RANGE SUPERLATTICES TOPOLOGY TUNING TUNNEL EFFECT |
| title | Wilson fermions and axion electrodynamics in optical lattices |
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