Universal Dynamical Control of Local Decoherence for Multipartite and Multilevel Systems
نویسندگان
چکیده
A unified theory is given of dynamically modified decay and decoherence of fielddriven multilevel multipartite entangled states that are weakly coupled to zerotemperature 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 singlequbit evolution.
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تاریخ انتشار 2006