313 citations · 739 across the 11 of their papers we have counts for
3 papers · 2 filters
Gaussian Decoherence and Gaussian Echo from Spin Environments
W. H. Zurek, F. M. Cucchietti, J. P. Paz
We examine an exactly solvable model of decoherence -- a spin-system interacting with a collection of environment spins. We show that in this simple model (introduced some time ago…
Interference in discrete Wigner functions
Cecilia Cormick, Juan Pablo Paz
We analyse some features of the class of discrete Wigner functions that was recently introduced by Gibbons et al. to represent quantum states of systems with power-of-prime dimensi…
Universal decoherence induced by an environmental quantum phase transition
Fernando Martin Cucchietti, Sonia Fernandez-Vidal, Juan Pablo Paz
Decoherence induced by coupling a system with an environment may display universal features. Here we demostrate that when the coupling to the system drives a quantum phase transiti…