328 citations · 350 across the 4 of their papers we have counts for
4 papers
Spin gases as microscopic models for non-Markovian decoherence
L. Hartmann, J. Calsamiglia, W. Dür +1
We analyze a microscopic decoherence model in which the total system is described as a spin gas. A spin gas consists of N classically moving particles with additional, interacting…
Entanglement and decoherence in spin gases
J. Calsamiglia, L. Hartmann, W. Dür +1
We study the dynamics of entanglement in spin gases. A spin gas consists of a (large) number of interacting particles whose random motion is described classically while their inter…
A computable measure of nonclassicality for light
J. K. Asbóth, J. Calsamiglia, H. Ritsch
We propose the Entanglement Potential (EP) as a measure of nonclassicality for quantum states of a single-mode electromagnetic field. It is the amount of two-mode entanglement that…
Local invariants for multi-partite entangled states allowing for a simple entanglement criterion
Hans Aschauer, John Calsamiglia, Marc Hein +1
We present local invariants of multi-partite pure or mixed states, which can be easily calculated and have a straight-forward physical meaning. As an application, we derive a new e…