Non-Markovian generalization of a stochastic Schrödinger equation for two interacting qubits

Samara National Research University - 34 Moskovskoe shosse, Samara, Russia

Received: 29 January 2020
Accepted: 20 April 2020

Abstract

The non-Markovian generalization of a stochastic Schrödinger equation of diffusion type is considered. Generalization is performed by adding to the system Hamiltonian new stochastic terms some of which are correlated with the environment. The advantage of such an approach is ensuring the complete positivity of the density operator at any time. We illustrate the approach by the example of two interacting qubits in noisy laser fields.