Experimental methods for detecting entanglement.
Here we present experimental realizations of two new entanglement detection methods: a three-measurement Bell inequality inequivalent to the Clauser-Horne-Shimony-Holt inequality and a nonlinear Bell-type inequality based on the negativity measure. In addition, we provide an experimental and theoretical comparison between these new methods and several techniques already in use: the traditional Clauser-Horne-Shimony-Holt inequality, the entanglement witness, and complete state tomography.
Altepeter
J B
JB
Department of Physics, University of Illinois at Urbana-Champaign, Urbana, IL 61801-3080, USA. altepete@uiuc.edu
Jeffrey
E R
ER
Kwiat
P G
PG
Tanzilli
S
S
Gisin
N
N
Acín
A
A