Quantum Heat Machines Equivalence, Work Extraction beyond Markovianity, and Strong Coupling via Heat Exchangers
Quantum Heat Machines Equivalence, Work Extraction beyond Markovianity, and Strong Coupling via Heat Exchangers
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DOI：
10.3390/e18040124
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发表时间：
2016-02
期刊：
影响因子：
2.7
通讯作者：
R. Uzdin;Amikam Levy;R. Kosloff
中科院分区：
文献类型：
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作者：
R. Uzdin;Amikam Levy;R. Kosloff
各种类型的发动机在小型“发动机作用”的量子极限方面是等效的。我们以前的等价推导仅限于马尔可夫热浴和隐式经典工作库（例如，半经典近似下的激光）。在本文中，所有的组件，浴缸，电池和发动机，都被明确考虑在内。为了巧妙地处理非马尔可夫动力学，我们使用中介粒子作为热交换器。我们发现，在前面观察到的等价性，有一个更高程度的等价性，不能实现在马尔可夫制度。接下来，我们关注电池充电过程的质量。给出了能量增加为正、熵增加（功）为零的条件。此外，它示出，在强耦合制度，它是可能的，以超充电电池。通过超级充电，电池的能量增加，同时其熵减少。
Various engine types are thermodynamically equivalent in the quantum limit of small “engine action”. Our previous derivation of the equivalence is restricted to Markovian heat baths and to implicit classical work repository (e.g., laser light in the semi-classical approximation). In this paper, all the components, baths, batteries, and engines, are explicitly taken into account. To neatly treat non-Markovian dynamics, we use mediating particles that function as a heat exchanger. We find that, on top of the previously observed equivalence, there is a higher degree of equivalence that cannot be achieved in the Markovian regime. Next, we focus on the quality of the battery charging process. A condition for positive energy increase and zero entropy increase (work) is given. Moreover, it is shown that, in the strong coupling regime, it is possible to super-charge a battery. With super-charging, the energy of the battery is increased while its entropy is being reduced at the same time.