Lougovski, Pavel and van Enk, S. J. and Choi, Kyung Soo and Papp, Scott B. and Deng, Hui and Kimble, H. J. (2009) Verifying multipartite mode entanglement of W states. New Journal of Physics, 11 (6). 063029. ISSN 1367-2630 http://resolver.caltech.edu/CaltechAUTHORS:20090903-122422330
- Published Version
Creative Commons Attribution Non-commercial Share Alike.
Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:20090903-122422330
We construct a method for verifying mode entanglement of N-mode W states. The ideal W state contains exactly one excitation symmetrically shared between N modes, but our method takes the existence of higher numbers of excitations into account, as well as the vacuum state and other deviations from the ideal state. Moreover, our method distinguishes between full N-party entanglement and states with M-party entanglement with M<N, including mixtures of the latter. We specialize to the case N=4 for illustrative purposes. In the optical case, where excitations are photons, our method can be implemented using linear optics.
|Additional Information:||Copyright © 2009 Deutsche Physikalische Gesellschaft & Institute of Physics. Received 4 March 2009. Published 16 June 2009. PL and SJvE thank Michael Raymer for useful discussions. This work was supported by the NSF, IARPA and ARO.|
|Official Citation:||Verifying multipartite mode entanglement of W states Pavel Lougovski, S J van Enk, Kyung Soo Choi, Scott B Papp, Hui Deng and H J Kimble 2009 New J. Phys. 11 063029 (22pp) doi: 10.1088/1367-2630/11/6/063029|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||George Porter|
|Deposited On:||09 Sep 2009 23:07|
|Last Modified:||26 Dec 2012 11:18|
Repository Staff Only: item control page