Selective quantum evolution of a qubit state due to continuous measurement
- 23 February 2001
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 63 (11) , 115403
- https://doi.org/10.1103/physrevb.63.115403
Abstract
We consider a two-level quantum system (qubit) that is continuously measured by a detector. The information provided by the detector is taken into account to describe the evolution during a particular realization of the measurement process. We discuss the Bayesian formalism for such “selective” evolution of an individual qubit and apply it to several solid-state setups. In particular, we show how to suppress qubit decoherence using continuous measurement and a feedback loop.All Related Versions
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