Long-Lived Mesoscopic Entanglement Between Two Damped Infinite Harmonic Chains
Long-Lived Mesoscopic Entanglement Between Two Damped Infinite Harmonic Chains
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DOI：
10.1007/s10955-017-1817-8
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发表时间：
2017-05
影响因子：
1.6
通讯作者：
F. Benatti;F. Benatti;F. Carollo;F. Carollo;R. Floreanini;J. Surace
中科院分区：
文献类型：
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作者：
F. Benatti;F. Benatti;F. Carollo;F. Carollo;R. Floreanini;J. Surace
我们考虑两个链，每一个由N个独立的振荡器，沉浸在一个共同的热浴和研究的动力学相互量子关联的热力学，大N限制。我们表明，由于外部环境的存在下的耗散和噪声能够产生集体量子关联的两个链之间的介观水平。在两个多体系统之间产生的集体量子纠缠被证明是相当稳健的，即使在非零的浴温下也能渐近地存活很长时间。
We consider two chains, each made ofNindependent oscillators, immersed in a common thermal bath and study the dynamics of their mutual quantum correlations in the thermodynamic, large-Nlimit. We show that dissipation and noise due to the presence of the external environment are able to generate collective quantum correlations between the two chains at the mesoscopic level. The created collective quantum entanglement between the two many-body systems turns out to be rather robust, surviving for asymptotically long times even for non vanishing bath temperatures.