Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

AIP conference proceedings

Wigner Distribution Function and Entanglement of Quantum Optical Elliptical Vortex

Abir Bandyopadhyay, Shashi Prabhakar, Ravindra Pratap Singh, Dipankar Home, Guruprasad Kar, Archan S. Majumda

Published Jan 1, 2011• 1 citation
Publisher
DOI
10.1063/1.3635861

Related papers

Wigner distribution of elliptical quantum optical vortex

Abir Bandyopadhyay, Ravindra Pratap Singh

arXiv:1007.0697•Optics Communications•Sep 16, 2010•29 citations

Entanglement of a quantum optical elliptic vortex

Abir Bandyopadhyay, Shashi Prabhakar, Ravindra Pratap Singh

arXiv:1010.3911•Physics Letters A•Apr 14, 2011•22 citations

Entanglement measure using Wigner function: Case of generalized vortex state formed by multiphoton subtraction

Anindya Banerji, Ravindra Pratap Singh, Abir Bandyopadhyay

arXiv:1304.2887•Optics Communications•May 27, 2014•31 citations

On the similarities between the Wigner distribution function in classical and quantum optics

Daniela Dragoman, Mircea Dragoman

Optik•Jan 1, 2001•4 citations

Wigner distribution function and entanglement of generalized quantum optical vortex

Abir Bandyopadhyay, Shashi Prabhakar, Ravi Prakash Singh

We calculate the Wigner (quasi)probability distribution function of the quantum optical elliptical vortex (QEV), generated by coupling squeezed vacuum states of two modes. The coupling between the two modes is performed by using beam splitter (BS) or a dual channel directional coupler (DCDC). The quantum interference due to the coupling between the two modes promises the generation of controlled entanglement for quantum computation and quantum tomography. We compute the entanglement of such QEV formed by non-classical radiation field, using Wigner function. We report a critical squeezing parameter above which the entanglement is less for higher vorticity, which is counter intuitive.

arXiv:1101.4736•Jan 25, 2011•0 citations

Continuous-variable Entanglement in Optical Vortex Beams

Shashi Prabhakar, Salla Gangi Reddy, Abdul Rahim Aadhi +3 more

Optical vortices, although being classical, have properties of two-mode entanglement present in quantum states. We have experimentally verified the violation of Bell’s inequality using Wigner distribution function for such beams.

International conference on fiber optics and photonics•Jan 1, 2014•0 citations
We calculate the Wigner (quasi)probability distribution function of the quantum optical elliptical vortex (QEV), generated by coupling squeezed vacuum states of two modes. The coupling between the two modes is performed by using beam splitter (BS) or a dual channel directional coupler (DCDC). The quantum interference due to the coupling between the two modes promises the generation of controlled entanglement for quantum computation and quantum tomography. We compute the entanglement of such QEV formed by non-classical radiation field, using Wigner function. We report a critical squeezing parameter above which the entanglement is less for higher vorticity, which is counter intuitive.