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Maximal violation of Bell's inequalities for continuous variable systems.

Zeng-Bing Chen1, Jian-Wei Pan, Guang Hou

  • 1Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230027, People's Republic of China.

Physical Review Letters
|January 22, 2002
PubMed
Summary

Researchers generalized Bell

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Area of Science:

  • Quantum Physics
  • Quantum Information

Background:

  • Bell's inequalities are fundamental in quantum mechanics.
  • Continuous variable systems are crucial for quantum information processing.

Purpose of the Study:

  • Generalize Bell's inequalities for continuous variable systems.
  • Demonstrate quantum nonlocality in these systems.

Main Methods:

  • Introduced a generalized Bell operator.
  • Applied it to two-mode squeezed vacuum states.

Main Results:

  • Generalized Bell's inequalities for bipartite continuous variable systems.
  • Showcased quantum nonlocality in two-mode squeezed vacuum states.
  • Einstein-Podolsky-Rosen states maximally violate the Clauser-Horne-Shimony-Holt inequality.

Conclusions:

  • The generalized Bell operator effectively demonstrates quantum nonlocality.
  • Continuous variable systems offer a platform for exploring quantum phenomena.
  • Experimental feasibility is considered.

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