Connecting Berezinskii-Kosterlitz-Thouless and BEC phase transitions by tuning interactions in a trapped gas
arXiv:1501.02262 · doi:10.1103/PhysRevLett.114.255302
Abstract
We study the critical point for the emergence of coherence in a harmonically trapped two-dimensional Bose gas with tuneable interactions. Over a wide range of interaction strengths we find excellent agreement with the classical-field predictions for the critical point of the Berezinskii-Kosterlitz-Thouless (BKT) superfluid transition. This allows us to quantitatively show, without any free parameters, that the interaction-driven BKT transition smoothly converges onto the purely quantum-statistical Bose-Einstein condensation (BEC) transition in the limit of vanishing interactions.
4 pages, 3 figures
References in corpus (17)
- Emergence of coherence in a uniform quasi-two-dimensional Bose gas
- Observation of scale invariance and universality in two-dimensional Bose gases
- Quench-induced supercurrents in an annular Bose gas
- 39-K Bose-Einstein condensate with tunable interactions
- Superfluid behaviour of a two-dimensional Bose gas
- Observation of pair condensation in the quasi-2D BEC-BCS crossover
- Critical Point of an Interacting Two-Dimensional Atomic Bose Gas
- Vortex proliferation in the Berezinskii-Kosterlitz-Thouless regime on a two-dimensional lattice of Bose-Einstein condensates
- The trapped two-dimensional Bose gas: from Bose-Einstein condensation to Berezinskii-Kosterlitz-Thouless physics
- Improved detection of small atom numbers through image processing
- Effects of Interactions on the Critical Temperature of a Trapped Bose Gas
- Kosterlitz-Thouless transition of the quasi two-dimensional trapped Bose gas
- Strongly Interacting Two-Dimensional Bose Gases
- Matter wave Fourier optics with a strongly interacting two-dimensional Fermi gas
- Efficient Production of Large 39K Bose-Einstein Condensates
- Probing Phase Fluctuations in a 2D Degenerate Bose Gas by Free Expansion
- Analysis of the Holzmann-Chevallier-Krauth theory for the trapped quasi-two-dimensional Bose gas
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- Spin- and Momentum-Correlated Atom Pairs Mediated by Photon Exchange and Seeded by Vacuum Fluctuations
- Phase transition dimensionality crossover from two to three dimensions in a trapped ultracold atomic Bose gas
- Berezinskii-Kosterlitz-Thouless phase transition with Rabi-coupled bosons
- Exploring the Berezinskii-Kosterlitz-Thouless Transition in a Two-dimensional Dipolar Bose Gas
- Coherence of a non-equilibrium polariton condensate across the interaction-mediated phase transition
- Unconventional Berezinskii-Kosterlitz-Thouless Transition in the Multicomponent Polariton System
- Dynamics of a Nonequilibrium Discontinuous Quantum Phase Transition in a Spinor Bose-Einstein Condensate
- Symmetry breaking at a topological phase transition
- Stochastic Gross-Pitaevskii theory for a spin-1 Bose gas: Application to superfluidity in two dimensions
- Thermodynamics and renormalized quasi-particles in the vicinity of the dilute Bose gas quantum critical point in two dimensions
- Detecting Phase Coherence of 2D Bose Gases via Noise Correlations
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- Simulating the Berezinskii-Kosterlitz-Thouless Transition with Complex Langevin
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