Dynamics of reduced density matrices: Classical memory versus quantum nonlocality

On Classical Teleportation and Classical Nonlocality

An interesting protocol for classical teleportation of an unknown classical state was recently suggested by Cohen, and by Gour and Meyer. In that protocol, Bob can sample from a probability distribution P that is given to Alice, even if Alice has absolutely no knowledge about P . Pursuing a similar line of thought, we suggest here a limited form of nonlocality — “classical nonlocality”. Our non...

Simulation of quantum processes using entangled trajectory molecular dynamics

In this paper, we describe a new method for simulating quantum processes using classical-like molecular dynamics. The approach is based on solving the quantum Liouville equation in the Wigner representation using ensembles of classical trajectories in phase space. The nonlocality of quantum mechanics is incorporated in the trajectory representation as nonclassical interactions between the membe...

02 00 5 v 1 5 F eb 1 99 5 March 1994 BELL ’ S INEQUALITIES AND DENSITY MATRICES . REVEALING “ HIDDEN ” NONLOCALITY

Atomic versus Ionized States in Many-Particle Systems and the Spectra of Reduced Density Matrices: A Model Study

We study the spectrum of appropriate reduced density matrices for a model consisting of one quantum particle ("electron") in a classical fluid (of "protons") at thermal equilibrium. The quantum and classical particles interact by a shortrange, attractive potential such that the quantum particle can form "atomic" bound states with a single classical particle. We consider two models for the class...

Modulated entanglement evolution via correlated noises

We study entanglement dynamics in the presence of correlated environmental noises. Specifically, we investigate the quantum entanglement dynamics of two spins in the presence of correlated classical white noises, deriving Markov master equation and obtaining explicit solutions for several interesting classes of initial states including Bell states and X form density matrices. We show how entang...