Reduced conditional dynamic of quantum system under indirect quantum measurement

Abstract

In this report, we study the reduced conditional dynamics of a quantum system in the case of indirect quantum measurement. The detectors microscopic part (pointer) interacts with the measured system (target) and the environment, which results in a nonunitary interaction between target and pointer. The quantum state evolution conditioned by the measurement result is under investigation. Particularly, we are interested in explicit analytical expressions for the conditional evolution superoperators and basic information characteristics of this measurement process, which is applied to the cavity mode photodetection problem.

14 pages, 8 figures, Central European Workshop on Quantum Optics 2013, Stockholm, Sweden

References in corpus (4)

• Self-Consistent Quantum Process Tomography
• Implementation schemes for unsharp measurements with trapped ions
• The canonical Naimark extension for the Pauli quantum roulette wheel
• Inclusion of non-idealities in the continuous photodetection model

Cited by in corpus (1)

• An indirect measurement protocol of intracavity mode quadratures dispersion in Dynamical Casimir Effect