Measurement Induced Quantum Coherence Recovery
  We show that measurement can recover the quantum coherence of a qubit in a non-Markovian environment. The experimental demonstration in an optical system is provided by comparing the visibilities (and fidelities) of the final states with and without measurement. This method can be extended to other two-level quantum systems and entangled states in a non-Markovian evolution environment. It may also be used to implement other quantum information processing. 
JinShi Xu, ChuanFeng Li, Ming Gong, XuBo Zou, Lei Chen, Geng Chen,   JianShun Tang and GuangCan Guo