Entanglement Detection in Coupled Particle Plasmons

Coupled magnetic plasmons in metamaterials

Surface plasmons in a metal nanowire coupled to colloidal quantum dots: Scattering properties and quantum entanglement

Guang-Yin Chen,1,2 Neill Lambert,2 Chung-Hsien Chou,1 Yueh-Nan Chen,1,* and Franco Nori2,3 1Department of Physics and National Center for Theoretical Sciences, National Cheng-Kung University, Tainan 701, Taiwan 2Advanced Science Institute, RIKEN, Wako-shi, Saitama 351-0198, Japan 3Physics Department, University of Michigan, Ann Arbor, Michigan 48109-1040, USA (Received 10 February 2011; revised...

Quantum Interference and Entanglement of Surface Plasmons

Surface plasma waves arise from the collective oscillations of billions of electrons at the surface of a metal in unison. The simplest way to quantize these waves is by direct analogy to electromagnetic fields in free space, with the surface plasmon, the quantum of the surface plasma wave, playing the same role as the photon. It follows that surface plasmons should exhibit all of the same quant...

Plasmons in strongly coupled shock-compressed matter.

We present the first measurements of the plasmon dispersion and damping in laser shock-compressed solid matter. Petawatt laser produced K-α radiation scatters on boron targets compressed by a 10 ns-long 400 J laser pulse. In the vicinity of the Fermi momentum, the scattering spectra show dispersionless, collisionally damped plasmons, indicating a strongly coupled electron liquid. These observat...

Multi - particle entanglement via two - party entanglement ∗

Entanglement between n particles is a generalization of the entanglement between two particles, and a state is considered entangled if it cannot be written as a mixture of tensor products of the n particles’ states. We present the key notion of semi-separability, used to investigate n-particle entanglement by looking at two-party entanglement between its various subsystems. We provide necessary...