BIPARTITE ENTANGLEMENT OF LARGE QUANTUM SYSTEMS

Fabio Benatti

Fabio Benatti

Bruno Nachtergaele, Robert Sims, Günter Stolz

We prove an upper bound proportional to the surface area for the bipartite\n entanglement of the ground state and thermal states of harmonic oscillator systems with\n disorder, as measured by the logarithmic negativity. Our assumptions are satisfied for some\n standard models that are almost surely gapless in the thermodynamic limit.

Ved Prakash Gupta, Prabha Mandayam, Viakalathur Shankar Sunder

Hui Zhao, Sha Guo

Mohammed Daoud A, El Bouâzzaoui Choubabi

We investigate the generation of multipartite entangled SU (k+1) coherent states using a quantum network involving a sequence of k beam splitters. We particularly investigate the entanglement in multipartite SU(2) coherent states (k = 1). We employ the concurrence as measure of the degree of bipartite entanglement.