论文标题

负温度为冷却

Negative temperature is cool for cooling

论文作者

Damas, Gabriella G., de Assis, Rogério J., de Almeida, Norton G.

论文摘要

在这项工作中,我们研究了由三个Qubits组成的自动冰箱[物理学。莱特牧师。 105,130401(2010)]在负温度下使用的一个储层之一,其目的是冷却其中一个Qubits。我们发现固定相关参数时感兴趣量子的最低温度值的值,并且我们还研究了冷却量子的限制,以任意接近绝对零。因此,我们进行了一项比较研究,表明在有效的负温度下的储层比在阳性温度下的储层更强大,以冷却感兴趣的量子。

In this work, we study an autonomous refrigerator composed of three qubits [Phys. Rev. Lett. 105, 130401 (2010)] operating with one of the reservoirs at negative temperatures, which has the purpose of cooling one of the qubits. We find the values of the lowest possible temperature that the qubit of interest reaches when fixing the relevant parameters, and we also study the limit for cooling the qubit arbitrarily close to absolute zero. We thus proceed to a comparative study showing that reservoirs at effective negative temperatures are more powerful than those at positive temperatures for cooling the qubit of interest.

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