Title :
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
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;
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
DOI :
10.1109/CLEOE-EQEC.2009.5191701
