The study of random vorticity in quantum fluids through interference fluctuations
arXiv:1304.6201 · doi:10.1103/PhysRevA.87.053610
Abstract
We study the vortex dynamics of a quantum degenerate Bose gas through the intensity fluctuations of the interference from particles extracted at two different positions. It is shown numerically with classical field simulations that an interacting Bose gas with proliferating vortices exhibits long correlation times for these intensity fluctuations. This behavior is contrasted with the case of a noninteracting gas, that we describe analytically, and with the case of a well condensed Bose gas without vortices. We discuss the observability of our predictions in quantum fluids of exciton-polaritons.
5 pages, 3 figures
References in corpus (8)
- Quantum fluids of light
- Quantised Vortices in an Exciton-Polariton Fluid
- Spontaneous vortices in the formation of Bose-Einstein condensates
- Dynamics and statistical mechanics of ultra-cold Bose gases using c-field techniques
- Polariton superfluids reveal quantum hydrodynamic solitons
- Emergence of turbulence in an oscillating Bose-Einstein condensate
- A semi-classical field method for the equilibrium Bose gas and application to thermal vortices in two dimensions
- Time interval distributions of atoms in atomic beams