三势阱中偶极玻色子的纠缠态
Entangled states of dipolar bosons generated in a triple-well potential
摘要：
我们研究了利用一个由三重势阱中的偶极玻色子构成的器件产生纠缠态。偶极玻色子具有可控的长程相互作用。这个属性允许特定的选择，以作出耦合参数，这样的系统是可积的。可积性有助于通过一个有效的哈密顿量通过一个保守的运营商构建的系统的分析。通过保真度的计算，我们建立了这种方法，研究的时间演化的纠缠的一类非纠缠的初始状态，产生精确的近似解析公式。
英文摘要：
We study the generation of entangled states using a device constructed from dipolar bosons confined to a triple-well potential. Dipolar bosons possess controllable, long-range interactions. This property permits specific choices to be made for the coupling parameters, such that the system is integrable. Integrability assists in the analysis of the system via an effective Hamiltonian constructed through a conserved operator. Through computations of fidelity we establish that this approach, to study the time-evolution of the entanglement for a class of non-entangled initial states, yields accurate approximations given by analytic formulae.
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