Pair correlation of atoms scattered from colliding Bose-Einstein quasicondensates
arXiv:1908.00264 · doi:10.1103/PhysRevA.101.033616
Abstract
A collision of Bose-Einstein condensates is a useful source of single nonclassically correlated pairs of atoms. Here, we consider elastic scattering of atoms from elongated clouds taking into account an effective, finite duration of the collision due to the expansion of the condensates. Also, we include the quasicondensate nature of the degenerate quantum gases, due to a finite temperature of the system. We evaluate the pair correlation function measured experimentally in K. V. Kheruntsyan, et. al. Phys. Rev. Lett. 108, 260401 (2012). We show that the finite duration of the collision is an important factor determining the properties of the correlations. Our analytic calculations are in agreement with the measurements. The analytical model we provide, useful for identifying physical processes that influence the correlations, is relevant for experiments with nonclassical pairs of atoms.
References in corpus (39)
- Regimes of quantum degeneracy in trapped 1D gases
- Hanbury Brown Twiss effect for ultracold quantum gases
- An atomic Hong-Ou-Mandel experiment
- Ghost Imaging with Atoms
- Twin-atom beams
- Observation of atom pairs in spontaneous four wave mixing of two colliding Bose-Einstein Condensates
- Generation of macroscopic pair-correlated atomic beams by four-wave mixing in Bose-Einstein condensates
- Quasi-1D Bose-Einstein condensates in the dimensional crossover regime
- Correlations in a BEC collision: First-principles quantum dynamics with 150 000 atoms
- Quantum turbulence and correlations in Bose-Einstein condensate collisions
- Quantum turbulence in condensate collisions: an application of the classical field method
- Theory of four-wave mixing of matter waves from a Bose-Einstein condensate
- Violation of the Cauchy-Schwarz inequality with matter waves
- Accurate determination of the scattering length of metastable Helium atoms using dark resonances between atoms and exotic molecules
- Spontaneous Four-Wave Mixing of de Broglie Waves: Beyond Optics
- Sub-Poissonian number differences in four-wave mixing of matter waves
- Quantum signature of analog Hawking radiation in momentum space
- Proposal for demonstrating the Hong-Ou-Mandel effect with matter waves
- Quantum effects on dynamics of instabilities in Bose-Einstein condensates
- Tunable source of correlated atom beams
- Two-body momentum correlations in a weakly interacting one-dimensional Bose gas
- A strong Bell correlation witness between spatially separated pairs of atoms
- Atomic four-wave mixing via condensate collisions
- Quantum multimode model of elastic scattering from Bose Einstein condensates
- Atom-atom correlations in colliding Bose-Einstein condensates
- Spontaneous emission of atoms via collisions of Bose-Einstein condensates
- Proposal for a motional-state Bell inequality test with ultracold atoms
- Bose-Einstein condensate of metastable helium for quantum correlation experiments
- Higher Order Quantum Ghost Imaging with Ultra-Cold Atoms
- Hanbury Brown and Twiss correlations in atoms scattered from colliding condensates
- Bogoliubov dynamics of condensate collisions using the positive-P representation
- Pair correlations of scattered atoms from two colliding Bose-Einstein Condensates: Perturbative Approach
- Cauchy-Schwarz inequality and particle entanglement
- Bell inequality, Einstein-Podolsky-Rosen steering and quantum metrology with spinor Bose-Einstein condensates
- Bogoliubov theory for atom scattering into separate regions
- Tradeoffs for number-squeezing in collisions of Bose-Einstein condensates
- Entanglement-based 3D magnetic gradiometry with an ultracold atomic scattering halo
- Raman scattering of atoms from a quasi-condensate in a perturbative regime
- Properties of atomic pairs produced in the collision of Bose-Einstein condensates