Continuous variable entanglement of orbital angular momentum states

Author

Lassen, M. ; Leuchs, G. ; Andersen, U.L.

Author_Institution

Dept. of Phys., Tech. Univ. of Denmark, Lyngby, Denmark

fYear

2009

fDate

14-19 June 2009

Firstpage

1

Lastpage

1

Abstract

We have generated a new quantum state of light composed of quadrature entangled Laguerre-Gaussian (LG) modes. For the generation we used an OPO operating in a new regime where all field parameters are degenerate except for its spatial degree of freedom for which it is two-fold degenerate. The entanglement is manifested in the squeezing of the rotated modes in the Hermite-Gauss (HG) basis, measured with a specially tailored local oscillator. The most promising application of CV orbital angular momentum (OAM) states is their compatibility with atoms, thus allowing for storage of CV quantum information.

Keywords

angular momentum; optical parametric oscillators; optical squeezing; quantum entanglement; stochastic processes; continuous variable entanglement; optical parametric oscillator; optical squeezing; orbital angular momentum states; quadrature entangled Laguerre-Gaussian mode; quantum information; quantum state; specially tailored local oscillator; Atomic beams; Atomic measurements; Extraterrestrial measurements; Frequency; Laser modes; Local oscillators; Mercury (metals); Optical polarization; Quantum entanglement; Rotation measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on

Conference_Location

Munich

Print_ISBN

978-1-4244-4079-5

Electronic_ISBN

978-1-4244-4080-1

Type

conf

DOI

10.1109/CLEOE-EQEC.2009.5191701

Filename

5191701