Nonpositive evolutions in open system dynamics
نویسندگان
چکیده
منابع مشابه
About Non-positive Evolutions in Open System Dynamics
The long-time evolution of a system in interaction with an external environment is usually described by a family of linear maps γt, generated by master equations of Block-Redfield type. These maps are in general non-positive; a widely adopted cure for this physical inconsistency is to restrict the domain of definition of the dynamical maps to those states for which γt remains positive. We show ...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2003
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.67.042110