Bosonic fractional quantum Hall states in driven optical lattices
| Autor: | Ivana Vasić, Nicolas Regnault, Ana Hudomal |
|---|---|
| Přispěvatelé: | Institute of Physics [Belgrade], University of Belgrade [Belgrade], Department of Physics, Princeton University (DPPU), Princeton University, Théorie de la Matière Condensée, Laboratoire de physique de l'ENS - ENS Paris (LPENS (UMR_8023)), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Université Paris Diderot - Paris 7 (UPD7)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Université Paris Diderot - Paris 7 (UPD7), Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Physics
Condensed Matter::Quantum Gases [PHYS.COND.GAS]Physics [physics]/Condensed Matter [cond-mat]/Quantum Gases [cond-mat.quant-gas] Interaction strength FOS: Physical sciences State (functional analysis) Quantum Hall effect 7. Clean energy 01 natural sciences Stability (probability) Omega 010305 fluids & plasmas Magnetic field Quantum Gases (cond-mat.quant-gas) Quantum mechanics 0103 physical sciences Cold atoms & matter waves Synthetic gauge fields 010306 general physics Condensed Matter - Quantum Gases ComputingMilieux_MISCELLANEOUS Cold gases in optical lattices |
| Zdroj: | Physical Review A Physical Review A, American Physical Society 2019, 100 (5), pp.053624. ⟨10.1103/PhysRevA.100.053624⟩ |
| ISSN: | 2469-9926 2469-9934 |
| DOI: | 10.1103/PhysRevA.100.053624⟩ |
| Popis: | Strong synthetic magnetic fields have been successfully implemented in periodically driven optical lattices. However, the interplay of the driving and interactions introduces detrimental heating, and for this reason it is still challenging to reach a fractional quantum Hall state in cold-atom setup. By performing a numerical study, we investigate stability of a bosonic Laughlin state in a small atomic sample exposed to driving. We identify an optimal regime of microscopic parameters, in particular interaction strength $U$ and the driving frequency $\omega$, such that the stroboscopic dynamics supports the basic $\nu = 1/2$ Laughlin state. Moreover, we explore slow ramping of a driving term and show that the considered protocol allows for the preparation of the Laughlin state on experimentally realistic time scales. Comment: 11 pages, 7 figures |
| Databáze: | OpenAIRE |
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