量子麦克斯韦妖中的信息驱动电流。
Information-driven current in a quantum Maxwell demon.
作者信息
Deffner Sebastian
机构信息
Department of Chemistry and Biochemistry and Institute for Physical Science and Technology, University of Maryland, College Park, Maryland 20742, USA.
出版信息
Phys Rev E Stat Nonlin Soft Matter Phys. 2013 Dec;88(6):062128. doi: 10.1103/PhysRevE.88.062128. Epub 2013 Dec 16.
We describe a minimal model of a quantum Maxwell demon obeying Hamiltonian dynamics. The model is solved exactly, and we analyze its steady-state behavior. We find that writing information to a quantum memory induces a probability current through the demon, which is the quantum analog of the classical Maxwell demon's action. Our model offers a simple and pedagogical paradigm for investigating the thermodynamics of quantum information processing.
我们描述了一个遵循哈密顿动力学的量子麦克斯韦妖的最小模型。该模型得到了精确求解，并且我们分析了它的稳态行为。我们发现，向量子存储器写入信息会在妖体中引发一个概率流，这是经典麦克斯韦妖行为的量子类比。我们的模型为研究量子信息处理的热力学提供了一个简单且具有教学意义的范例。
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