As has been shown elsewhere, a reasonable model of the loss of entanglement or correlation that occurs in quantum computations is one which assumes that they can effectively be predicted by a framework that presupposes the presence of irreversibilities internal to the system. It is based on the steepest-entropy-ascent principle and is used here to reproduce the behavior of a controlled-PHASE gate in good agreement with experimental data. The results show that the loss of entanglement predicted is related to the irreversibilities in a nontrivial way, providing a possible alternative approach that warrants exploration to that conventionally used to predict the loss of entanglement. The results provide a means for understanding this loss in quantum protocols from a nonequilibrium thermodynamic standpoint. This framework permits the development of strategies for extending either the maximum fidelity of the computation or the entanglement time.

中文翻译：

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最速熵上升量子热力学框架下受控相位门的纠缠损失预测

正如其他地方所展示的那样，量子计算中发生的纠缠或相关性损失的合理模型是假设它们可以通过假设系统内部存在不可逆性的框架有效地预测。它基于最速熵上升原理，在此用于重现与实验数据非常一致的受控 PHASE 门的行为。结果表明，预测的纠缠损失与不可逆性以一种非平凡的方式相关，提供了一种可能的替代方法，值得对传统用于预测纠缠损失的方法进行探索。结果为从非平衡热力学的角度理解量子协议中的这种损失提供了一种方法。