论文标题
少于三个浴室中的三个Qubit：超越量子冰箱中的两体系统浴的相互作用
Three qubits in less than three baths: Beyond two-body system-bath interactions in quantum refrigerators
论文作者
论文摘要
我们表明，传统上研究的量子吸收冰箱也可以通过使用三个Qubits和两个热浴进行构造，这些量子吸收冰箱传统上进行了研究，每个量子都可以连接到热储层，其中两个Qubits（包括局部冷却的Qubit）连接到普通浴室。仔细选择了born-markov和旋转波近似中的系统，浴缸和Qubit浴的相互作用参数，连接到公共浴缸的量子位之一可在稳态下进行冷却。我们观察到，所提出的冰箱也可以在没有或可以忽略不计的稳态冷却的参数状态下运行，但是有相当大的瞬时冷却。由于在冰箱设置中使用公共浴室，可以通过增加几体相互作用项的强度来显着降低稳态温度。提出的冰箱用三个量子位和两个浴室构建，可为量子和规范的玻色子热储层之间的马尔可夫量子浴室相互作用提供稳态冷却，并为量子托架相互作用提供了更简单的重置模型。
We show that quantum absorption refrigerators, which have traditionally been studied as of three qubits, each of which is connected to a thermal reservoir, can also be constructed by using three qubits and two thermal baths, where two of the qubits, including the qubit to be locally cooled, are connected to a common bath. With a careful choice of the system, bath, and qubit-bath interaction parameters within the Born-Markov and rotating-wave approximations, one of the qubits attached to the common bath achieves a cooling in the steady state. We observe that the proposed refrigerator may also operate in a parameter regime where no or negligible steady-state cooling is achieved, but there is considerable transient cooling. The steady-state temperature can be lowered significantly by an increase in the strength of the few-body interaction terms existing due to the use of the common bath in the refrigerator setup. The proposed refrigerator built with three qubits and two baths is shown to provide steady-state cooling for both Markovian qubit-bath interactions between the qubits and canonical bosonic thermal reservoirs, and a simpler reset model for the qubit-bath interactions.
