NON-POSITIVE SEMIGROUP DYNAMICS IN CONTINUOUS VARIABLE MODELS
نویسندگان
چکیده
منابع مشابه
Non-positive Semigroup Dynamics in Continuous Variable Models
Non-positive, Markovian semigroups are sometimes used to describe the time evolution of subsystems immersed in an external environment. A widely adopted prescription to avoid the appearance of negative probabilities is to eliminate from the admissible initial conditions those density matrices that would not remain positive by the action of the semigroup dynamics. Using a continuous variable mod...
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Ruggero Vasile,1,* Stefano Olivares,2,3,4,† Matteo G. A. Paris,4,‡ and Sabrina Maniscalco5,1,§ 1Turku Centre for Quantum Physics, Department of Physics and Astronomy, University of Turku, FI-20014 Turun yliopisto, Finland 2Dipartimento di Fisica, Università degli Studi di Trieste, I-34151 Trieste, Italy 3CNISM, Unitá di Ricerca di Milano Università, I-20133 Milano, Italy 4Dipartimento di Fisica...
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ژورنال
عنوان ژورنال: International Journal of Quantum Information
سال: 2007
ISSN: 0219-7499,1793-6918
DOI: 10.1142/s0219749907002633