Continuous Frequency Entanglement: Effective Finite Hilbert Space and Entropy Control
- 5 June 2000
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 84 (23), 5304-5307
- https://doi.org/10.1103/physrevlett.84.5304
Abstract
We examine the quantum structure of continuum entanglement and in the context of short-pulse down-conversion we answer the open question of how many of the uncountably many frequency modes contribute effectively to the entanglement. We derive a set of two-photon mode functions that provide an exact, discrete, and effectively finite basis for characterizing pairwise entanglement. Our analysis provides a basis for entropy control in two-photon pulses generated from down-conversion.Keywords
This publication has 27 references indexed in Scilit:
- Qubit devices and the issue of quantum decoherenceProgress in Quantum Electronics, 1999
- Quantum information theoryIEEE Transactions on Information Theory, 1998
- Experimental Entanglement Swapping: Entangling Photons That Never InteractedPhysical Review Letters, 1998
- Experimental Realization of Teleporting an Unknown Pure Quantum State via Dual Classical and Einstein-Podolsky-Rosen ChannelsPhysical Review Letters, 1998
- Experimental quantum teleportationNature, 1997
- Dense Coding in Experimental Quantum CommunicationPhysical Review Letters, 1996
- New High-Intensity Source of Polarization-Entangled Photon PairsPhysical Review Letters, 1995
- ‘‘Event-ready-detectors’’ Bell experiment via entanglement swappingPhysical Review Letters, 1993
- Nonlocal cancellation of dispersionPhysical Review A, 1992
- Bell inequality for position and timePhysical Review Letters, 1989