General Non-Markovian Structure of Gaussian Master and Stochastic Schrödinger Equations
Abstract
General open quantum systems display memory features, their master equations are non-Markovian. We show that the subclass of Gaussian non-Markovian open system dynamics is tractable in a depth similar to the Markovian class. The structure of master equations exhibits a transparent generalization of the Lindblad structure. We find and parametrize the class of stochastic Schrödinger equations that unravel a given master equation, such a class was previously known for Markovian systems only. We show that particular non-Markovian unravelings known in the literature are special cases of our class.
- Publication:
-
Physical Review Letters
- Pub Date:
- November 2014
- DOI:
- 10.1103/PhysRevLett.113.200403
- Bibcode:
- 2014PhRvL.113t0403D
- Keywords:
-
- 03.65.Yz;
- 03.65.Ta;
- 42.50.Lc;
- Decoherence;
- open systems;
- quantum statistical methods;
- Foundations of quantum mechanics;
- measurement theory;
- Quantum fluctuations quantum noise and quantum jumps