53 citations · 226 across the 27 of their papers we have counts for
27 papers
The Master Equation for Two-Level Accelerated Systems at Finite Temperature
Jeferson Tomazelli, Renan Cunha
In this work we study the behaviour of two weakly coupled quantum systems, described by a separable density operator; one of them is a single oscillator, representing a microscopic…
Dissipative Quantum Systems in ThermoField Dynamics
J. L. Tomazelli, G. G. Gomes
We investigate a class of microscopic systems in interaction with a macroscopic system in thermal equilibrium, following the construction of Dalibard, Dupont-Roc and Cohen-Tannoudj…
On the Non-relativistic Limit of Linear Wave Equations for Zero and Unity Spin Particles
P. Yu. Moshin, J. L. Tomazelli
The non-relativistic limit of the linear wave equation for zero and unity spin bosons of mass in the Duffin-Kemmer-Petiau representation is investigated by means of a unitary t…
Model Interacting Boson-Fermion Stars
Claudio M. G. de Sousa, J. L. Tomazelli, Vanda Silveira
This report gives an outline of current-current type interaction between self-gravitating bosons and fermions.
Comments on spin operators and spin-polarization states of 2+1 fermions
S. P. Gavrilov, D. M. Gitman, J. L. Tomazelli
In this brief article we discuss spin polarization operators and spin polarization states of 2+1 massive Dirac fermions and find a convenient representation by the help of 4-spinor…
Density matrix of a quantum field in a particle-creating background
S. P. Gavrilov, D. M. Gitman, J. L. Tomazelli
We consider the time evolution of a quantized field in backgrounds that violate the vacuum stability (particle-creating backgrounds). Our aim is to study the exact form of the fina…