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Phys. Rev. A 65, 023808 (2002) [4 pages]

Multiparameter entanglement in femtosecond parametric down-conversion

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Mete Atatüre1, Giovanni Di Giuseppe2, Matthew D. Shaw2, Alexander V. Sergienko1,2, Bahaa E. A. Saleh2, and Malvin C. Teich1,2
1Quantum Imaging Laboratory, Department of Physics, Boston University, 8 Saint Mary’s Street, Boston, Massachusetts 02215
2Quantum Imaging Laboratory, Department of Electrical and Computer Engineering, Boston University, 8 Saint Mary’s Street, Boston, Massachusetts 02215

Received 14 August 2001; published 11 January 2002

A theory of spontaneous parametric down-conversion, which gives rise to a quantum state that is entangled in multiple parameters, such as three-dimensional wave vector and polarization, allows us to understand the unusual characteristics of fourth-order quantum interference in many experiments, including ultrafast type-II parametric down-conversion, the specific example illustrated in this paper. The comprehensive approach provided here permits the engineering of quantum states suitable for quantum-information schemes and quantum technologies.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.65.023808
DOI:
10.1103/PhysRevA.65.023808
PACS:
42.50.Dv, 03.67.-a, 42.65.Re, 42.65.Ky
 
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