期刊
PHYSICAL REVIEW LETTERS
卷 111, 期 10, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.111.100406
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资金
- Studienstiftung des deutschen Volkes
- Heinz Neumuller Stiftung
- Marsden Fund of New Zealand [UOO162]
- Royal Society of New Zealand [UOO004]
- Faculty of Science at Durham University
- EOARD [FA8655-10-1-3033]
- UK EPSRC [EP/G05 6781/1]
- EPSRC [EP/F002068/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/F002068/1] Funding Source: researchfish
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 that 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 Rb-85 and Cs-133. 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.
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