TY - JOUR
T1 - Orbital angular momentum correlations of entangled paired photons
AU - Osorio, Clara I.
AU - Molina-Terriza, G.
AU - Torres, Juan P.
PY - 2009
Y1 - 2009
N2 - The generation of paired photons entangled in the spatial degree of freedom, i.e., in orbital angular momentum, offers a convenient physical resource to investigate the nature of entanglement in a multidimensional Hilbert space with controllable dimensionality. The two main physical processes that generate pairs of photons which show correlations in orbital angular momentum are (a) spontaneous parametric down-conversion (SPDC), and (b) Raman transitions induced in atomic ensembles. One question naturally arises: what kinds of correlations exist between the orbital angular momentum of the generated photons? The answer might be different if we consider the whole quantum state of the generated photons, i.e., all possible directions where the pairs of photons can be emitted, or if we consider only a small section of the full set of directions.
AB - The generation of paired photons entangled in the spatial degree of freedom, i.e., in orbital angular momentum, offers a convenient physical resource to investigate the nature of entanglement in a multidimensional Hilbert space with controllable dimensionality. The two main physical processes that generate pairs of photons which show correlations in orbital angular momentum are (a) spontaneous parametric down-conversion (SPDC), and (b) Raman transitions induced in atomic ensembles. One question naturally arises: what kinds of correlations exist between the orbital angular momentum of the generated photons? The answer might be different if we consider the whole quantum state of the generated photons, i.e., all possible directions where the pairs of photons can be emitted, or if we consider only a small section of the full set of directions.
UR - http://www.scopus.com/inward/record.url?scp=70449382457&partnerID=8YFLogxK
U2 - 10.1088/1464-4258/11/9/094013
DO - 10.1088/1464-4258/11/9/094013
M3 - Article
AN - SCOPUS:70449382457
SN - 1464-4258
VL - 11
SP - 1
EP - 7
JO - Journal of Optics A: Pure and Applied Optics
JF - Journal of Optics A: Pure and Applied Optics
IS - 9
M1 - 094013
ER -