27 citations · 70 across the 5 of their papers we have counts for
4 papers · 1 filter
Parametric approximation as open quantum systems problem
A. Yu. Karasev, A. E. Teretenkov
In this work we develop an open quantum system view of the parametric approximation, which allows us to obtain systematic perturbative corrections to it. We consider the Jaynes-Cum…
Dissipative evolution of quantum Gaussian states
Tomasz Linowski, Alexander Teretenkov, Łukasz Rudnicki
Recent works on quantum resource theories of non-Gaussianity, which are based upon the type of tools available in contemporary experimental settings, put Gaussian states and their…
Non-perturbative effects in corrections to quantum master equation arising in Bogolubov-van Hove limit
A. E. Teretenkov
We study the perturbative corrections to the { Gorini-Kossakowski-Sudarshan-Lindblad equation which arises in the weak coupling limit}. The spin-boson model in the rotating wave ap…
Symplectic analogs of polar decomposition and their applications to bosonic Gaussian channels
A. E. Teretenkov
We obtain several analogs of real polar decomposition for even dimensional matrices. In particular, we decompose a non-degenerate matrix as a product of a Hamiltonian and an anti-s…