1.5k citations · 8.9k across the 121 of their papers we have counts for
8 papers · 2 filters
Initial correlations in open system's dynamics: The Jaynes-Cummings model
A. Smirne, H. -P. Breuer, J. Piilo +1
Employing the trace distance as a measure for the distinguishability of quantum states, we study the influence of initial correlations on the dynamics of open systems. We concentra…
Counterintuitive transitions between crossing energy levels
A. A. Rangelov, J. Piilo, N. V. Vitanov
We calculate analytically the probabilities for intuitive and counterintuitive transitions in a three-state system, in which two parallel energies are crossed by a third, tilted en…
Generation of entanglement density within a reservoir
C. Lazarou, B. M. Garraway, J. Piilo +1
We study a single two-level atom interacting with a reservoir of modes defined by its reservoir structure function. Within this framework we are able to define a density of entangl…
Frozen discord in non-Markovian dephasing channels
L. Mazzola, J. Piilo, S. Maniscalco
We investigate the dynamics of quantum and classical correlations in a system of two qubits under local colored-noise dephasing channels. The time evolution of a single qubit inter…
Witness for initial system-environment correlations in open system dynamics
Elsi-Mari Laine, Jyrki Piilo, Heinz-Peter Breuer
We study the evolution of a general open quantum system when the system and its environment are initially correlated. We show that the trace distance between two states of the open…
Phenomenological memory-kernel master equations and time-dependent Markovian processes
L. Mazzola, E. -M. Laine, H. -P. Breuer +2
Do phenomenological master equations with memory kernel always describe a non-Markovian quantum dynamics characterized by reverse flow of information? Is the integration over the p…