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Memory effects in a dynamical decoupling process
S. C. Hou, X. Y. Zhang, Si-wen Li +1
We establish a simple quantitative relationship between the environmental memory effects and the characteristics in a dynamical decoupling process. In contrast to previous works, o…
Influence of initial states on memory effects: A study of early-time superradiance
S. C. Hou, G. Q. Shuai, X. Y. Zhang +2
The initial state of a quantum system can significantly influence its future dynamics, especially in non-Markovain quantum processes due to the environmental memory effects. Based…
The Dynamical Invariant of Open Quantum System
S. L. Wu, X. Y. Zhang, X. X. Yi
The dynamical invariant, whose expectation value is constant, is generalized to open quantum system. The evolution equation of dynamical invariant (the dynamical invariant conditio…
Extended Techniques for Feedback Control of A Single Qubit
Y. Yang, X. Y. Zhang, J. Ma +1
The protection of quantum states is challenging for non-orthogonal states especially in the presence of noises. The recent research breakthrough shows that this difficulty can be o…