Agarwal , G. S. (2011) Engineering non-Gaussian entangled states with vortices by photon subtraction New Journal of Physics, 13 . 073008_1-073008_7. ISSN 1367-2630
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Official URL: http://iopscience.iop.org/1367-2630/13/7/073008
Related URL: http://dx.doi.org/10.1088/1367-2630/13/7/073008
Abstract
We show how a quantum mechanical vortex state of a two-mode system can be generated from a squeezed vacuum by subtracting a photon. The vortex state has nonclassical properties; for example, its Wigner function can be negative, in contrast to the Wigner function of the two-mode squeezed vacuum. We show, by calculating the logarithmic negativity parameter, that the vortex state has stronger entanglement than the two-mode squeezed vacuum.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Institute of Physics. |
| ID Code: | 90352 |
| Deposited On: | 09 May 2012 03:57 |
| Last Modified: | 09 May 2012 03:57 |
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