论文标题
单个局部耗散通道的量子阵列中纠缠量子对的耗散稳定
Dissipative stabilization of entangled qubit pairs in quantum arrays with a single localized dissipative channel
论文作者
论文摘要
我们研究量子系统阵列中纠缠状态的耗散稳定。具体而言，我们对可能与一个或多个腔（骨气模式）相互作用的Qubits（Spin-1/2）状态感兴趣。在所有情况下，只有一个元素（无论是腔还是量子）是有损的，并且不可逆地耦合到储层。当失去元素是一个空腔时，我们会考虑一个挤压储层，并且只有保留腔激发次数的相互作用。取而代之的是，当有损元素是量子元素时，请考虑纯衰变和正确选择的XY相互作用结构。我们表明，在所有情况下，在稳定状态下，通过耗散和局部相互作用的相互作用，覆盖整个数组的许多遥远，非直接相互作用的量子都可以以固定的方式纠缠。
We study the dissipative stabilization of entangled states in arrays of quantum systems. Specifically, we are interested in the states of qubits (spin-1/2) which may or may not interact with one or more cavities (bosonic modes). In all cases only one element, either a cavity or a qubit, is lossy and irreversibly coupled to a reservoir. When the lossy element is a cavity, we consider a squeezed reservoir and only interactions which conserve the number of cavity excitations. Instead, when the lossy element is a qubit, pure decay and a properly selected structure of XY-interactions are taken into account. We show that in all cases, in the steady state, many pairs of distant, non-directly interacting qubits, which cover the whole array, can get entangled in a stationary way, by means of the interplay of dissipation and local interactions.
