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Title: Global stability criterion for a quantum feedback control process on a single qubit and exponential stability in case of perfect detection efficiency

Abstract

Quantum feedback control is a technology that can be used to drive a quantum system into a predetermined eigenstate. In this article, sufficient conditions for the experiment parameters of a quantum feedback control process of a homodyne measurement are given to guarantee feedback control of a spin-1/2 quantum system in case of imperfect detection efficiency. For the case of pure states and perfect detection efficiency, time scales of feedback control processes are calculated.

Authors:
 [1]
  1. FH Suedwestfalen, University of Applied Sciences, Haldener Strasse 182, D-58095 Hagen (Germany)
Publication Date:
OSTI Identifier:
20982232
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 75; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevA.75.032101; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CONTROL; DETECTION; EFFICIENCY; EIGENSTATES; FEEDBACK; QUANTUM COMPUTERS; QUBITS; SPIN; STABILITY

Citation Formats

Vries, Andreas de. Global stability criterion for a quantum feedback control process on a single qubit and exponential stability in case of perfect detection efficiency. United States: N. p., 2007. Web. doi:10.1103/PHYSREVA.75.032101.
Vries, Andreas de. Global stability criterion for a quantum feedback control process on a single qubit and exponential stability in case of perfect detection efficiency. United States. doi:10.1103/PHYSREVA.75.032101.
Vries, Andreas de. Thu . "Global stability criterion for a quantum feedback control process on a single qubit and exponential stability in case of perfect detection efficiency". United States. doi:10.1103/PHYSREVA.75.032101.
@article{osti_20982232,
title = {Global stability criterion for a quantum feedback control process on a single qubit and exponential stability in case of perfect detection efficiency},
author = {Vries, Andreas de},
abstractNote = {Quantum feedback control is a technology that can be used to drive a quantum system into a predetermined eigenstate. In this article, sufficient conditions for the experiment parameters of a quantum feedback control process of a homodyne measurement are given to guarantee feedback control of a spin-1/2 quantum system in case of imperfect detection efficiency. For the case of pure states and perfect detection efficiency, time scales of feedback control processes are calculated.},
doi = {10.1103/PHYSREVA.75.032101},
journal = {Physical Review. A},
number = 3,
volume = 75,
place = {United States},
year = {Thu Mar 15 00:00:00 EDT 2007},
month = {Thu Mar 15 00:00:00 EDT 2007}
}