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Indistinguishability as nonlocality constraint.

Cássio Sozinho Amorim1

  • 1Nagoya University, Department of Applied Physics, Nagoya, 464-8603, Japan. cassio.s.amorim@gmail.com.

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|April 19, 2018
PubMed
Summary
This summary is machine-generated.

Information indistinguishability provides a physical explanation for quantum bounds to nonlocality, also known as Tsirelson

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Area of Science:

  • Quantum Information Theory
  • Foundations of Quantum Mechanics

Background:

  • Quantum nonlocality is constrained by Tsirelson's bound, a limit not explained by no-signaling principles alone.
  • Understanding the physical origin of these quantum bounds is crucial for quantum theory.

Purpose of the Study:

  • To provide a physical explanation for quantum bounds to nonlocality (Tsirelson's bound).
  • To establish information indistinguishability as a fundamental principle underlying quantum correlation limits.

Main Methods:

  • Conceptual framework linking information indistinguishability to quantum correlation bounds.
  • Analysis of indistinguishability of qubits and general bits.
  • Connection to the exclusivity principle.

Main Results:

  • Information indistinguishability offers a physical explanation for Tsirelson's bound.
  • Indistinguishability of information is identified as the origin of quantum limits to nonlocality.
  • Indistinguishability is shown to lead to quantum correlation bounds via the exclusivity principle.

Conclusions:

  • Information indistinguishability is a fundamental principle in quantum mechanics, comparable to non-locality and relativistic causality.
  • This principle offers a new perspective on the foundations of nonlocal realism.