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多体多能级系统局部退相干的泛动力学控制

Universal Dynamical Control of Local Decoherence for Multipartite and Multilevel Systems

Goren Gordon, Gershon Kurizki, Abraham G. Kofman

摘要:

给出了一个统一的理论,用于研究弱耦合到零温浴或经历随机相位起伏的场驱动多能级多体纠缠态的动态修正的衰变和退相干。该理论允许在它们与环境的耦合中存在任意的局部差异。由于这种差异,确保最大保真度的最佳驱动场调制被发现与单量子位演化的常规“Bang-Bang '”或$π$ -相位翻转基本上不同。

英文摘要:

A unified theory is given of dynamically modified decay and decoherence of field-driven multilevel multipartite entangled states that are weakly coupled to zero-temperature baths or undergo random phase fluctuations. The theory allows for arbitrary local differences in their coupling to the environment. Due to such differences, the optimal driving-field modulation to ensure maximal fidelity is found to substantially differ from conventional ``Bang-Bang'' or $π$-phase flips of the single-qubit evolution.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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