Evaporative cooling to a Rydberg crystal close to its ground state
| Autor: | Michel Brune, D. J. Papoular |
|---|---|
| Přispěvatelé: | Laboratoire Kastler Brossel (LKB (Lhomond)), Université Pierre et Marie Curie - Paris 6 (UPMC)-Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), 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)-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)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Théorique et Modélisation (LPTM - UMR 8089), Centre National de la Recherche Scientifique (CNRS)-CY Cergy Paris Université (CY) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
[PHYS.COND.GAS]Physics [physics]/Condensed Matter [cond-mat]/Quantum Gases [cond-mat.quant-gas] FOS: Physical sciences 01 natural sciences Molecular physics 010305 fluids & plasmas Crystal symbols.namesake Chain (algebraic topology) [PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph] Quantum Gases (cond-mat.quant-gas) 0103 physical sciences Rydberg formula symbols 010306 general physics Ground state Condensed Matter - Quantum Gases Realization (systems) Quantum Evaporative cooler |
| Zdroj: | Physical Review Research Physical Review Research, American Physical Society, 2020, ⟨10.1103/PhysRevResearch.2.023014⟩ |
| ISSN: | 2643-1564 |
| Popis: | We theoretically show how to obtain a long one-dimensional crystal near its quantum ground state. We rely on an evaporative cooling scheme applicable to many-body systems with nonzero-ranged interactions. Despite the absence of periodic potentials, the final state is a crystal which exhibits long-range spatial order. We describe the scheme thermodynamically, applying the truncated Boltzmann distribution to the collective excitations of the chain, and show that it leads to a novel quasi-equilibrium many-body state. For longer chains, comprising about 1000 atoms, we emphasize the quasi-universality of the evaporation curve. Such exceptionally long 1D crystals are only accessible deep in the quantum regime. We perform our analysis on the example of an initially thermal chain of circular Rydberg atoms confined to a one-dimensional (1D) geometry. Our scheme may be applied to other quantum systems with long-ranged interactions such as polar molecules. Main text: 6 pages, 5 figures. Supplemental Material: 4 pages, 6 figures |
| Databáze: | OpenAIRE |
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