Evidence for cooling in an optical lattice by amplitude modulation
| Autor: | E. Michon, M. Arnal, V. Brunaud, Pierrick Cheiney, G. Chatelain, C. Cabrera-Gutiérrez, David Guéry-Odelin, Juliette Billy |
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| Přispěvatelé: | Atomes Froids (LCAR), Laboratoire Collisions Agrégats Réactivité (LCAR), Institut de Recherche sur les Systèmes Atomiques et Moléculaires Complexes (IRSAMC), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche sur les Systèmes Atomiques et Moléculaires Complexes (IRSAMC), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Condensed Matter::Quantum Gases
Physics Optical lattice education.field_of_study [PHYS.COND.GAS]Physics [physics]/Condensed Matter [cond-mat]/Quantum Gases [cond-mat.quant-gas] Condensed Matter::Other Population Position and momentum space 01 natural sciences 7. Clean energy 010305 fluids & plasmas law.invention Thermalisation law Lattice (order) 0103 physical sciences Physics::Atomic Physics Atomic physics 010306 general physics education Quantum Bose–Einstein condensate ComputingMilieux_MISCELLANEOUS Evaporative cooler |
| Zdroj: | Physical Review A Physical Review A, American Physical Society 2019, 100 (1), pp.013416. ⟨10.1103/PhysRevA.100.013416⟩ |
| ISSN: | 2469-9926 2469-9934 |
| DOI: | 10.1103/PhysRevA.100.013416⟩ |
| Popis: | We report on a generic cooling technique for atoms trapped in optical lattices. It consists in modulating the lattice depth with a proper frequency sweeping. This filtering technique removes the most energetic atoms and provides, with the onset of thermalization, a cooling mechanism reminiscent of evaporative cooling. However, the selection is here performed in quasimomentum space rather than in position space. Interband selection rules are used to protect the population with a zero quasimomentum, namely the Bose Einstein condensate. Direct condensation of thermal atoms in an optical lattice is also achieved with this technique. It offers an interesting complementary cooling mechanism for quantum simulations performed with quantum gases trapped in optical lattices. |
| Databáze: | OpenAIRE |
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