论文标题
平衡分布混合物的量子状态
Quantum states from mixtures of equilibrium distributions
论文作者
论文摘要
我们构建并探索与两个或多个荒地储层接触的量子系统的一系列国家。储层通过平衡分布描述。每个储层与系统大部分的相互作用以概率进行编码，这表征了它们之间的粒子交换，并且通常取决于粒子动量。储层分布的凸组合（以上述概率加权）定义了新的分布。我们建立了一种排放 - 吸收状态的存在，其中新分布会产生非平衡量子状态。我们开发了一个系统的现场理论框架，用于构建此状态并在简单模型上说明其物理特性。在这种情况下，我们得出了粒子电流的完整计数统计量，热电流和洛伦兹的数字。还确定了熵产生和相对量子波动。
We construct and explore a family of states for quantum systems in contact with two or more heath reservoirs. The reservoirs are described by equilibrium distributions. The interaction of each reservoir with the bulk of the system is encoded in a probability, which characterises the particle exchange among them and depends in general on the particle momentum. The convex combination of the reservoir distributions, weighted with the aforementioned probabilities, defines a new distribution. We establish the existence of an emission-absorption regime in which the new distribution generates a non-equilibrium quantum state. We develop a systematic field theory framework for constructing this state and illustrate its physical properties on a simple model. In this context we derive the particle current full counting statistics, the heat current and the Lorenz number. The entropy production and the relative quantum fluctuations are also determined.
