title: Spontaneous relaxation of a charge qubit under electrical measurement.
abstract: 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 remarkable 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.
authors.affiliation: State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912, Beijing 100083, China.
authors.forename: Xin-Qi
authors.initials: XQ
authors.lastname: Li
authors.forename: Ping
authors.initials: P
authors.lastname: Cui
authors.forename: YiJing
authors.initials: Y
authors.lastname: Yan