Creation and detection of a mesoscopic gas in a non-local quantum superposition
arXiv:0806.3395 · doi:10.1103/PhysRevLett.102.010403
Abstract
We investigate the scattering of a quantum matter wave soliton on a barrier in a one dimensional geometry and we show that it can lead to mesoscopic Schrödinger cat states, where the atomic gas is in a coherent superposition of being in the half-space to the left of the barrier and being in the half-space to the right of the barrier. We propose an interferometric method to reveal the coherent nature of this superposition and we discuss in details the experimental feasibility.
4 pages, 1 figure
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