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Experimental determination of the finite-temperature phase diagram of a spin–orbit coupled Bose gas

Spin-orbit (SO) coupling has led to numerously exciting phenomena in electron systems, for instance, the recently discovered topological insulator. The synthesized SO coupling with ultracold neutral atoms opens a new avenue of quantum simulation, and gives us an opportunity to study SO coupling in b... Full description

Journal Title: Nature Physics 2014, Vol.10(4), p.314
Main Author: Si-Cong Ji
Other Authors: Jin-Yi Zhang , Long Zhang , Zhi-Dong Du , Wei Zheng , You-Jin Deng , Hui Zhai , Shuai Chen , Jian-Wei Pan
Format: Electronic Article Electronic Article
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ID: ISSN: 1745-2473 ; E-ISSN: 1745-2481 ; DOI: 10.1038/nphys2905
Link: http://dx.doi.org/10.1038/nphys2905
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recordid: nature_a10.1038/nphys2905
title: Experimental determination of the finite-temperature phase diagram of a spin–orbit coupled Bose gas
format: Article
creator:
  • Si-Cong Ji
  • Jin-Yi Zhang
  • Long Zhang
  • Zhi-Dong Du
  • Wei Zheng
  • You-Jin Deng
  • Hui Zhai
  • Shuai Chen
  • Jian-Wei Pan
subjects:
  • Phase Transitions
  • Spin Density Waves
  • Helium
  • Phase Diagrams
  • Superfluidity
  • Broken Symmetry
  • Neutral Atoms
  • Condensates
  • Coupling
  • Group 5a Compounds
  • Helium Isotopes
  • Phase Transitions
ispartof: Nature Physics, 2014, Vol.10(4), p.314
description: Spin-orbit (SO) coupling has led to numerously exciting phenomena in electron systems, for instance, the recently discovered topological insulator. The synthesized SO coupling with ultracold neutral atoms opens a new avenue of quantum simulation, and gives us an opportunity to study SO coupling in bosonic systems. Indeed, SO coupling leads to many new phenomena of boson superfluidity and various condensate phases that spontaneously break different symmetries. A richer structure of symmetry breaking always results in a nontrivial finite-temperature phase diagram. While the thermodynamics of the SO coupled Bose gas at finite temperature is still unknown either in theory or experiment. In this work, we experimentally generate the SO coupling in ultracold Rb-87 gas to explore in a large temperature range and get most key features. We discover a novel phase transition between the stripe ordered phase and the magnetized phase, which is reminiscent of temperature-driven transition from the B phase...
language:
source:
identifier: ISSN: 1745-2473 ; E-ISSN: 1745-2481 ; DOI: 10.1038/nphys2905
fulltext: fulltext
issn:
  • 1745-2473
  • 17452473
  • 1745-2481
  • 17452481
url: Link


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titleExperimental determination of the finite-temperature phase diagram of a spin–orbit coupled Bose gas
creatorSi-Cong Ji ; Jin-Yi Zhang ; Long Zhang ; Zhi-Dong Du ; Wei Zheng ; You-Jin Deng ; Hui Zhai ; Shuai Chen ; Jian-Wei Pan
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descriptionSpin-orbit (SO) coupling has led to numerously exciting phenomena in electron systems, for instance, the recently discovered topological insulator. The synthesized SO coupling with ultracold neutral atoms opens a new avenue of quantum simulation, and gives us an opportunity to study SO coupling in bosonic systems. Indeed, SO coupling leads to many new phenomena of boson superfluidity and various condensate phases that spontaneously break different symmetries. A richer structure of symmetry breaking always results in a nontrivial finite-temperature phase diagram. While the thermodynamics of the SO coupled Bose gas at finite temperature is still unknown either in theory or experiment. In this work, we experimentally generate the SO coupling in ultracold Rb-87 gas to explore in a large temperature range and get most key features. We discover a novel phase transition between the stripe ordered phase and the magnetized phase, which is reminiscent of temperature-driven transition from the B phase...
subjectPhase Transitions ; Spin Density Waves ; Helium ; Phase Diagrams ; Superfluidity ; Broken Symmetry ; Neutral Atoms ; Condensates ; Coupling ; Group 5a Compounds ; Helium Isotopes ; Phase Transitions;
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