Details

Autor(en) / Beteiligte

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

Titel

Generating mesoscopic Bell states via collisions of distinguishable quantum bright solitons

Ist Teil von

• Physical review letters, 2013-09, Vol.111 (10), p.100406-100406, Article 100406

Ort / Verlag

United States

Erscheinungsjahr

2013

Link zum Volltext

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• 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 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.