Quantum nondemolition measurement saturates fidelity trade-off
نویسندگان
چکیده
منابع مشابه
Nondemolition Principle of Quantum Measurement Theory
We give an explicit axiomatic formulation of the quantum measurement theory which is free of the projection postulate. It is based on the generalized nondemolition principle applicable also to the unsharp, continuous– spectrum and continuous-in-time observations. The “collapsed state–vector” after the “objectification” is simply treated as a random vector of the a posteriori state given by the ...
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I. Serban,1,2 B. L. T. Plourde,3 and F. K. Wilhelm2 1Physics Department, Arnold Sommerfeld Center for Theoretical Physics, and Center for NanoScience, Ludwig-Maximilians-Universität, Theresienstrasse 37, 80333 Munich, Germany 2IQC and Department of Physics and Astronomy, University of Waterloo, 200 University Avenue W, Waterloo, Ontario, Canada N2L 3G1 3Department of Physics, Syracuse Universit...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2005
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.72.034307