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Low-entanglement remote state preparation.

I Devetak1, T Berger

  • 1Department of Electrical and Computer Engineering, Cornell University, Ithaca, New York 14850, USA. igor@ece.cornell.edu

Physical Review Letters
|November 3, 2001
PubMed
Summary
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This study establishes an outer bound for the remote state preparation tradeoff curve, using classical information theory. The bound is shown to be optimal for many protocols, with potential optimality for all.

Area of Science:

  • Quantum Information Theory
  • Classical Information Theory

Background:

  • Remote state preparation (RSP) is a fundamental quantum communication task.
  • Understanding the tradeoffs between entanglement (ebits) and classical bits in RSP is crucial for resource optimization.

Purpose of the Study:

  • To derive an outer bound for the low-entanglement RSP ebits vs bits tradeoff curve.
  • To investigate the optimality of this bound within specific classes of protocols.

Main Methods:

  • Application of classical information theory techniques.
  • Analysis of the remote state preparation (RSP) protocol.

Main Results:

  • An outer bound on the low-entanglement RSP ebits vs bits tradeoff curve was successfully established.

Related Experiment Videos

  • The derived bound was demonstrated to be optimal for a significant subset of RSP protocols.

    • Conclusions:

    • The established outer bound provides a theoretical limit for RSP resource requirements.
    • The findings suggest the potential for universal optimality of the bound, warranting further investigation.