Entanglers: Beam Splitters and Thermal Fields

  1. Dr. Dietrich Papenfuß2,
  2. Professor Dr. Dieter Lüst3 and
  3. Professor Dr. Wolfgang P. Schleich4
  1. Myung Shik Kim

Published Online: 29 NOV 2007

DOI: 10.1002/9783527610853.ch31

100 Years Werner Heisenberg: Works and Impact

100 Years Werner Heisenberg: Works and Impact

How to Cite

Kim, M. S. (2002) Entanglers: Beam Splitters and Thermal Fields, in 100 Years Werner Heisenberg: Works and Impact (eds D. Papenfuß, D. Lüst and W. P. Schleich), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, Germany. doi: 10.1002/9783527610853.ch31

Editor Information

  1. 2

    Alexander von Humboldt-Stiftung, Bonn, Germany

  2. 3

    Humboldt Universität, Institut für Physik, Germany

  3. 4

    Universität Ulm, Abteilung f. Quantenphysik, Albert-Einstein-Allee 11, 89069 Ulm, Germany

Author Information

  1. Sir David Bates Building, School of Mathematics and Physics, Queen's University, Belfast, BT7 1NN, UK

Publication History

  1. Published Online: 29 NOV 2007
  2. Published Print: 27 AUG 2002

ISBN Information

Print ISBN: 9783527403929

Online ISBN: 9783527610853

SEARCH

Keywords:

  • quantum physics;
  • entanglers;
  • beam splitters;
  • thermal fields

Summary

Entanglement is an important ingredient for quantum information processing. We discuss some sources of entanglement, namely a beam splitter and a thermal field. For the generation of entangled continuous-variable states, we consider a beam splitter and find some conditions for input fields to see entanglement in the output. While a beam splitter is a unitary device to generate an entangled state for a bipartite continuous-variable system, a thermal field is shown to mediate entanglement of two qubits.