Scheme for optical implementation of orbital angular momentum beam splitter of a light beam and its application in quantum information processing

Journal Article · Fri Apr 01 00:00:00 EST 2005 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.71.042324· OSTI ID:20653281

Xubo, Zou; Mathis, W ^[1]

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1. Electromagnetic Theory Group at THT, Department of Electrical Engineering, University of Hannover, Hannover (Germany)

Optical beams bearing orbital angular momentum have been recently recognized as potential candidates for realizing D-dimensional quantum systems (qudits). In this paper, we propose an optical scheme to implement an orbital angular momentum beam splitter, which changes the outgoing direction with respect to the incoming direction while leaving the qudit state unchanged. Furthermore we demonstrate that such a beam splitter can be used to sort different orbital angular states of a single photon, create arbitrary superpositions of orbital angular momentum states, and implement a high-dimensional Bennett-Brassard 1984 protocol for quantum key distribution.

• OSTI ID: 20653281
• Journal Information: Physical Review. A, Vol. 71, Issue 4; Other Information: DOI: 10.1103/PhysRevA.71.042324; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
BEAM SPLITTING
CORRELATIONS
DATA PROCESSING
DISTRIBUTION
ENERGY LEVELS
IMPLEMENTATION
INFORMATION THEORY
ORBITAL ANGULAR MOMENTUM
PHOTONS
QUANTUM MECHANICS
QUANTUM NUMBERS
VISIBLE RADIATION