An Approximate Solution of the Master Equation with the Dissipator being a Set of Projectors
نویسنده
چکیده
In this paper we consider a quantum open system and treat the master equation with some restricted dissipator which consists of a set of projection operators (projectors). The exact solution is given under the commutable approximation (in our terminology). This is the first step for constructing a general solution. In this paper we revisit dynamics of a quantum open system. First of all we explain our purpose in a short manner. See [1] as a general introduction to this subject. We consider a quantum open system S coupled to the environment E. Then the total system S + E is described by the Hamiltonian HS+E = HS ⊗ 1E + 1S ⊗HE +HI where HS, HE are respectively the Hamiltonians of the system and environment, and HI is the Hamiltonian of the interaction. ∗E-mail address : [email protected]
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