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Generating mesoscopic Bell states via collisions of distinguishable quantum bright solitons by Gertjerenken, Bettina; Billam, Thomas P.; Blackley, Caroline L.; Sueur, C. Ruth Le; Khaykovich, Lev; Cornish, Simon L.; Weiss, Christoph is a scholarly article available to read on EtoBox.

What is Generating mesoscopic Bell states via collisions of distinguishable quantum bright solitons about?

We investigate numerically the collisions of two distinguishable quantum matter-wave bright solitons in a one-dimensional harmonic trap. We show that such collisions can be used to generate mesoscopic Bell states which can reliably be distinguished from statistical mixtures. Calculation of the relevant s-wave scattering lengths predicts that such states could potentially be realized in quantum-degenerate mixtures of 85Rb and 133Cs. In addition to fully quantum simulations for two distinguishable two-particle solitons, we use a mean-field description supplemented by a stochastic treatment of quantum fluctuations in the soliton's center of mass: We demonstrate the validity of this approach by comparison to a mathematically rigorous effective potential treatment of the quantum many-particle problem.

Author

Gertjerenken, Bettina; Billam, Thomas P.; Blackley, Caroline L.; Sueur, C. Ruth Le; Khaykovich, Lev; Cornish, Simon L.; Weiss, Christoph

Published

2013

Language

EN