Quantum refrigerator driven by current noise
Quantum refrigerator driven by current noise
复制标题
由电流噪声驱动的量子冰箱
DOI:
10.1209/0295-5075/97/40003
复制
发表时间:
2012-02-01
期刊:
影响因子:
1.8
通讯作者:
Li, Sheng-Wen
中科院分区:
文献类型:
--
作者:
Chen, Yi-Xin;Li, Sheng-Wen
We proposed a scheme for the implementation of a "self-contained" quantum refrigerator system by three rf-SQUID qubits, or rather, flux-biased phase qubits. The three qubits play the role of the target, the refrigerator and the heat engine, respectively. We provide the three qubits with different effective temperatures, by imposing external current noises of different strengths. When the effective temperatures satisfy proper conditions, the target qubit could be cooled down. We also show that the efficiency of this system approaches the Carnot upper bound. Copyright (C) EPLA, 2012