activity
20022018
most citedDistance between quantum states in presence of initial qubit-environment correlations: a comparative study

92 citations · 327 across the 21 of their papers we have counts for

collaborators

21 papers

quant-ph2018★ 7 cited

Self--averaging of random quantum dynamics

Marcin Łobejko, Jerzy Dajka, Jerzy Łuczka

Stochastic dynamics of a quantum system driven by statistically independent random sudden quenches in a fixed time interval is studied. We reveal that with growing the syst…

quant-ph2017★ 17 cited

The Leggett--Garg K3 quantity discriminates Dirac and Majorana neutrinos

Monika Richter, Bartosz Dziewit, Jerzy Dajka

The K3 quantity, introduced in a context of the Leggett--Garg inequality violation, is studied for the neutrino oscillations in matter with phenomenologically modelled dissipative…

quant-ph2017

Distinguishing quantum states using time travelling qubits in a presence of thermal environments

Bartosz Dziewit, Monika Richter, Jerzy Dajka

We consider quantum circuits with time travel designed for distinguishing specific nonorthogonal quantum states in two most popular models: Deutschs and postselected. We modify the…

cond-mat.stat-mech2015★ 3 cited

Reversal of relaxation due to dephasing environment

Marcin Mierzejewski, Janez Bonca, Jerzy Dajka

We show that any finite quantum system can be coupled to a dephasing environment in such a way that the internal mechanism responsible for relaxation of observables acting on $…

hep-ph2013★ 18 cited

Geometric phase of neutrino propagating through dissipative matter

J. Dajka, J. Syska, J. Łuczka

We study the geometric phase (GP) in neutrino oscillation for both Dirac and Majorana neutrinos. We apply the kinematic generalization of the GP to quantum open systems that take i…

quant-ph2013★ 4 cited

Trace distance and linear entropy of qubit states: Role of initial qubit-environment correlations

Jerzy Dajka, Jerzy Luczka

The role of initial qubit-environment correlations on trace distance between two qubit states is studied in the framework of non--Markovian pure dephasing. The growth of mixedness…