Dynamical Suppression of Nonlocal Decoherence in Two-State Quantum Systems
Wang Zhong-Jie, Zhang Kan · Communications in Theoretical Physics · 2009
Nonlocal decoherence of two qubits due to pure phase damping has been investigated. We have proposed a scheme to keep the entanglement of two qubits from nonlocal decoherence. By applying a series of ±π pulses, nonlocal decoherence can be thoroughly suppressed.