16 citations · 42 across the 6 of their papers we have counts for
6 papers
Modular Dynamical Semigroups for Quantum Dissipative Systems
David Taj, Hans Christian Öttinger
We introduce a class of Markovian quantum master equations, able to describe the dissipative dynamics of a quantum system weakly coupled to one or several heat baths. The dissipati…
Microscopic theory of energy dissipation and decoherence in solid-state systems: A reformulation of the conventional Markov limit
Michele Pepe, David Taj, Rita Claudia Iotti +1
We present and discuss a general density-matrix description of energy-dissipation and decoherence phenomena in open quantum systems, able to overcome the intrinsic limitations of t…
Completely Positive Markovian Quantum Dynamics in the Weak-Coupling Limit
David Taj, Fausto Rossi
We obtain new types of exponential decay laws for solutions of density-matrix master equations in the weak-coupling limit: after comparing with results already present in the liter…
Weak-Coupling Limit. II On the Quantum Fokker-Planck Equation
David Taj
In a recent work we have found a contraction semigroup able to correctly approximate a projected and perturbed one-parameter group of isometries in a generic Banach space, in the l…
Weak-Coupling Limit. I A Contraction Semigroup for Infinite Subsystems
David Taj
We consider the class of quantum mechanical master equations defined on a generic Banach space, arising by projecting weakly perturbed one-parameter groups of isometries. We show t…
Quantum Non-Locality in Systems with Open Boundaries: Failure of the Wigner-Function Formalism
Luigi Genovese, David Taj, Fausto Rossi
We shall revisit the conventional treatment of open quantum devices based on the Wigner-Function formalism. Our analysis will show that the artificial spatial separation between de…