5 papers
New approach for solving master equations of density operator for the Jaynes Cummings Model with Cavity Damping
Seyed Mahmoud Ashrafi, Mohammad Reza Bazrafkan
By introducing thermal entangled state representation which can map master equations of density operator in quantum statistics as state vector evolution equations and using dissipa…
New approach for Damping in a squeezed bath and its time evolution through Complete Class of Gaussian Quasi-distributions
Mohammad Reza Bazrafkan, Seyed Mahmoud Ashrafi, Fahimeh Naghdi
By virtue of the thermal entangled states representation of density operator and using dissipative interaction picture we solve the master equation of a driven damped harmonic osci…
Deriving Some Quantum Optical Identities Using the General Ordering Theorem
F. Shähandeh, M. R. Bazrafkan, E. Nahvifard
Using the newly introduced general ordering theorem (GOT) by Shähandeh and Bazrafkan, we derive and generalize some quantum optical identities and give their applications.
Combinatorial Approach to Boson Anti-Normal Ordering Problem
M. R. Bazrafkan, F. Shähandeh, E. Nahvifard
We address a systematic combinatorial approach to the anti-normal ordering problem. In this way, we use the Stirling numbers and their generating function, the so-called Bell polyn…
A New Theorem on the Nonclassicality of States
F. Shähandeh, M. R. Bazrafkan
A new theorem on the non-classicality depth of states has been proved. We show that if exist for some value of the ordering parameter at some phase-spa…