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Sampling of quantum dynamics at long time
Alessandro Sergi, Francesco Petruccione
The principle of energy conservation leads to a generalized choice of transition probability in a piecewise adiabatic representation of quantum(-classical) dynamics. Significant im…
Stochastic Schrödinger equations with coloured noise
A. Barchielli, C. Pellegrini, F. Petruccione
A natural non-Markovian extension of the theory of white noise quantum trajectories is presented. In order to introduce memory effects in the formalism an Ornstein-Uhlenbeck colour…
Diffusion Approximation of Stochastic Master Equations with Jumps
Clement Pellegrini, Francesco Petruccione
In the presence of quantum measurements with direct photon detection the evolution of open quantum systems is usually described by stochastic master equations with jumps. Heuristic…
Non-Markovian dynamics of interacting qubit pair coupled to two independent bosonic baths
I. Sinayskiy, E. Ferraro, A. Napoli +2
The dynamics of two interacting spins coupled to separate bosonic baths is studied. An analytical solution in Born approximation for arbitrary spectral density functions of the bos…
Markovian and Post-Markovian dynamics of nonequilibrium thermal entanglement
Ilya Sinayskiy, Francesco Petruccione
The dynamics of two spins coupled to bosonic baths at different temperatures is studied. The analytical solution for the reduced density matrix of the system in the Markovian and P…
Stochastic Wave-Function Unravelling of the Generalized Lindblad Master Equation
Mervlyn Moodley, Francesco Petruccione
Recently a generalized master equation was derived that extends the Lindblad theory to highly non-Markovian quantum processes (H.-P. Breuer, Phys. Rev. A \textbf{75}, 022103 (2007)…
Numerical and Analytical Approach to the Quantum Dynamics of Two Coupled Spins in Bosonic Baths
Alessandro Sergi, Ilya Sinayskiy, Francesco Petruccione
The quantum dynamics of a spin chain interacting with multiple bosonic baths is described in a mixed Wigner-Heisenberg representation. The formalism is illustrated by simulating th…
Non Markovian Quantum Repeated Interactions and Measurements
C Pellegrini, F Petruccione
A non-Markovian model of quantum repeated interactions between a small quantum system and an infinite chain of quantum systems is presented. By adapting and applying usual pro ject…
Monitoring the wave function by time continuous position measurement
Thomas Konrad, Andreas Rothe, Francesco Petruccione +1
We consider a single copy of a quantum particle moving in a potential and show that it is possible to monitor its complete wave function by only continuously measuring its position…
The Algebraic Measure of a Hidden Markov Quantum Memory Channel
I. Akhalwaya, J. Wouters, M. Fannes +1
This paper was presented in poster form at and in the proceedings of the QCMC 2008. It is a summary of a fuller paper to appear separately. The classical product state capacity of…
Classical capacity of a qubit depolarizing channel with memory
Jeroen Wouters, Ismail Akhalwaya, Mark Fannes +1
The classical product state capacity of a noisy quantum channel with memory is investigated. A forgetful noise-memory channel is constructed by Markov switching between two depolar…