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arXiv 1009.0640quant-phcond-mat.quant-gas
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原子Fock态的陷阱逐步约化:从突变到绝热极限

Atomic Fock states by gradual trap reduction: from sudden to adiabatic limits

D. Sokolovski, M. Pons, A. del Campo, J. G. Muga

摘要:

研究了在Tonk-Girardeau区域中,通过逐步减少含有自旋极化费米子或强相互作用玻色子的准一维陷阱,形成高保真原子Fock态的可能性.使陷阱变浅并同时压缩它可以导致在接近突然极限或绝热极限时制备理想的原子Fock态。尽管如此,所得到的状态的保真度示出表现出非单调的行为与时间尺度,其中的捕获电位被改变。

英文摘要:

We investigate the possibility to form high fidelity atomic Fock states by gradual reduction of a quasi one dimensional trap containing spin polarized fermions or strongly interacting bosons in the Tonk-Girardeau regime. Making the trap shallower and simultaneously squeezing it can lead to the preparation of an ideal atomic Fock state as one approaches either the sudden or the adiabatic limits. Nonetheless, the fidelity of the resulting state is shown to exhibit a non-monotonic behaviour with the time scale in which the trapping potential is changed.

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