Critical correlations in an ultracold Bose gas revealed by means of a temporal Talbot-Lau interferometer
arXiv:1303.0516 · doi:10.1088/1612-2011/10/12/125502
Abstract
We study experimentally the critical correlation in an ultra-cold Bose gas with a temporal Talbot-Lau (TL) interferometer. Near the critical temperature, we observe a bi-modal density distribution in an ultra-cold Bose gas after the application of the TL interferometer. The measured fraction of the narrower peak in the density distribution displays a clear peak within the critical regime. The peak position agrees with the critical temperature calculated with the finite-size and interaction corrections. The critical exponents are extracted from the peak and they agree with the critical exponents for the correlation length.
5 pages, 3 figures and supplemental material
References in corpus (15)
- Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
- Atom Interferometers
- Quantum Simulation of Antiferromagnetic Spin Chains in an Optical Lattice
- Revealing the Superfluid Lambda Transition in the Universal Thermodynamics of a Unitary Fermi Gas
- Quantum magnetism and criticality
- Tunable Superfluidity and Quantum Magnetism with Ultracold Polar Molecules
- Itinerant Ferromagnetism in a Fermi Gas of Ultracold Atoms
- Observation of scale invariance and universality in two-dimensional Bose gases
- Critical Behavior of a Trapped Interacting Bose Gas
- Quantum critical behavior of ultracold atoms in two-dimensional optical lattices
- Effects of Interactions on the Critical Temperature of a Trapped Bose Gas
- Quantum Criticality from in-situ Density Imaging
- Condensed Fraction of an Atomic Bose Gas Induced by Critical Correlations
- Momentum-space engineering of gaseous Bose-Einstein condensates
- Manipulating the momentum state of a condensate by sequences of standing wave pulses
Cited by in corpus (5)
- Finite-size effects on the Bose-Einstein condensation critical temperature in a harmonic trap
- Temporal Talbot interferometer of strongly interacting molecular Bose-Einstein condensate
- Study to improve the performance of interferometer with ultra-cold atoms
- A Wigner Function Approach to Coherence in a Talbot-Lau Interferometer
- Matter wave interference of dilute Bose gases in the critical regime