Entangling two distinguishable quantum bright solitons via collisions
Entangling two distinguishable quantum bright solitons via collisions
复制标题
通过碰撞纠缠两个可区分的量子亮孤子
DOI:
10.1088/1742-6596/497/1/012033
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
Billam T
中科院分区:
文献类型:
--
作者:
Billam T
The generation of mesoscopic Bell states via collisions of distinguishable bright solitons has been suggested in Phys. Rev. Lett. 111, 100406 (2013). Here, we extend our former proposal to two hyperfine states of 85 Rb instead of two different atomic species, thus simplifying possible experimental realisations. A calculation of the s-wave scattering lengths for the hyperfine states (f, m f)=(2,+ 2) and (3,+ 2) identifies parameter regimes suitable for the creation of Bell states with an advantageously broad Feshbach resonance. We show the generation of Bell states using the truncated Wigner method for the soliton's centre of mass and demonstrate the validity of this approach by a comparison to a mathematically rigorous effective potential treatment of the quantum many-particle problem.
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