Nonlocality and Quantum Cakes, Revisited

Bradley G. Christensen, Paul G. Kwiat

Research output: Chapter in Book/Report/Conference proceedingChapter


Entanglement is a nonintuitive feature of quantum mechanics, leading to various nonlocal phenomena. For example, entangled states can display nonlocal correlations stronger than allowed by any local realistic theory, violating a Bell inequality, assuming various experimental loopholes are addressed. The Hardy paradox allows us to find a more familiar example of the difference between nonlocality and classical expectations. Here, we review the Hardy paradox and the “quantum cakes” example, and present a source of high-quality entangled photons with the best-to-date violation of this paradox.

Original languageEnglish (US)
Title of host publicationFrontiers Collection
PublisherSpringer VS
Number of pages9
StatePublished - 2017

Publication series

NameFrontiers Collection
VolumePart F919
ISSN (Print)1612-3018
ISSN (Electronic)2197-6619


  • Bell Inequality
  • Entangle Photon
  • Entangle State
  • Entanglement Source
  • Local Realism

ASJC Scopus subject areas

  • Social Sciences (miscellaneous)
  • Sociology and Political Science
  • History and Philosophy of Science
  • Philosophy
  • Arts and Humanities (miscellaneous)


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