Second law of information thermodynamics with entanglement transfer
Second law of information thermodynamics with entanglement transfer
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信息热力学第二定律与纠缠传递
DOI：
10.1103/physreve.88.042143
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发表时间：
2013
影响因子：
2.4
通讯作者：
H. Tajima
中科院分区：
文献类型：
--
作者：
Atsushi Kamimura;Kunihiko Kaneko;H. Tajima
我们提出了一个不等式，该不等式在具有测量和反馈控制的量子过程中成立，并且仅使用亥姆霍兹自由能和形成纠缠：这个量是正的，表示测量过程中通过相互作用从系统到探针的纠缠转移量。这是更容易实现的上界在这个不等式比在Sagawa-Ueda不等式[物理。100，080403（2008）PRLTA00031 -900710.1103/PhysRevLett.100.080403]。我们的不等式具有明确的物理意义：在上述热力学过程中，我们从热力学系统中提取的功比传统热力学系统中的上界大了测量所提取的纠缠量。
We present an inequality which holds in the thermodynamical processes with measurement and feedback controls and uses only the Helmholtz free energy and the entanglement of formation:. The quantity, which is positive, expresses the amount of entanglement transfer from systemto probethrough the interactionduring the measurement. It is easier to achieve the upper bound in this inequality than in the Sagawa-Ueda inequality [Phys. Rev. Lett. 100, 080403 (2008)PRLTAO0031-900710.1103/PhysRevLett.100.080403]. Our inequality has clear physical meaning: in the above thermodynamical processes, the work which we can extract from the thermodynamic system is greater than the upper bound in the conventional thermodynamics by the amount of the entanglement extracted by the measurement.