Spontaneous Relaxation of a Charge Qubit under Electrical Measurement
  In this work we first derive a generalized conditional master equation for quantum measurement by a mesoscopic detector, then study the readout characteristics of qubit measurement where a number of new features are found. The work would in particular highlight the qubit spontaneous relaxation effect induced by the measurement itself rather than an external thermal bath. 
Xin-Qi Li, Ping Cui, and YiJing Yan