125 citations · 260 across the 13 of their papers we have counts for
5 papers · 1 filter
Hamiltonian approach for the wave packet dynamics: Beyond Gaussian wave functions
Andrey Pereverzev, Eric R. Bittner
It is well known that the Gaussian wave packet dynamics can be written in terms of Hamilton equations in the extended phase space that is twice as large as in the corresponding cla…
On the derivation of exact eigenstates of the generalized squeezing operator
Andrey Pereverzev, Eric R. Bittner
We construct the states that are invariant under the action of the generalized squeezing operator for arbitrary positive integer . The states a…
Exactly solvable approximating models for Rabi Hamiltonian dynamics
Andrey Pereverzev, Eric R. Bittner
The interaction between an atom and a one mode external driving field is an ubiquitous problem in many branches of physics and is often modeled using the Rabi Hamiltonian. In this…
Least paradoxical states of the Schrödinger cat
Andrey Pereverzev
Modeling the Schrödinger cat by a two state system and assuming that the cat is coupled to the environment we look for the least paradoxical states of the Schrödinger cat in the fo…
Damped harmonic oscillator: pure states of the bath and exact master equations
Andrey Pereverzev
Time evolution of a harmonic oscillator linearly coupled to a heat bath is compared for three classes of initial states for the bath modes - grand canonical ensemble, number states…