Quantum noise in three-dimensional BEC interferometry
Centre for Atom Optics and Ultrafast Spectroscopy, Swinburne University of Technology Hawthorn, VIC 3122, Australia
2 Physics Department, University of Queensland - Queensland, Australia
Accepted: 31 January 2012
We develop a theory of quantum fluctuations and squeezing in a three-dimensional Bose-Einstein condensate atom interferometer with nonlinear losses. We use stochastic equations in a truncated Wigner representation to treat quantum noise. Our approach includes the multi-mode spatial evolution of spinor components and describes the many-body dynamics of a mesoscopic quantum system.
PACS: 03.75.Gg – Entanglement and decoherence in Bose-Einstein condensates / 03.75.Dg – Atom and neutron interferometry / 67.85.Fg – Multicomponent condensates; spinor condensates
© EPLA, 2012