Stochastic wave-function unravelling of the generalized Lindblad equation using correlated states
2012 (English)In: Physica Scripta, ISSN 0031-8949, E-ISSN 1402-4896, Vol. 85, no 4, 045002- p.Article in journal (Refereed) Published
We perform a stochastic wave-function unravelling of the generalized Lindblad master equation using correlated states, a combination of the system state vectors and the environment population. The time-convolutionless projection operator method using correlated projection superoperators is applied to a two-state system, a qubit, that is coupled to an environment consisting of two energy bands which are both populated. These results are compared to the data obtained from Monte Carlo wave-function simulations based on the unravelling of the master equation. We also show a typical quantum trajectory and the average time evolution of the state vector on the Bloch sphere.
Place, publisher, year, edition, pages
2012. Vol. 85, no 4, 045002- p.
IdentifiersURN: urn:nbn:se:umu:diva-55679DOI: 10.1088/0031-8949/85/04/045002ISI: 000303518600003OAI: oai:DiVA.org:umu-55679DiVA: diva2:528856