Nonlocal Appearance of a Macroscopic Angular Momentum

G. S. Paraoanu, R. Healey

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Abstract

We discuss a type of measurement in which a macroscopically large angular momentum (spin) is "created" nonlocally by the measurement of just a few atoms from a double Fock state. This procedure apparently leads to a blatant nonconservation of a macroscopic variable-the local angular momentum. We argue that while this gedankenexperiment provides a striking illustration of several counter-intuitive features of quantum mechanics, it does not imply a non-local violation of the conservation of angular momentum.

Original languageEnglish
Pages (from-to)1783-1791
Number of pages9
JournalInternational Journal of Theoretical Physics
Volume51
Issue number6
DOIs
Publication statusPublished - Jun 2012
MoE publication typeA1 Journal article-refereed

Keywords

  • Bose-Einstein condensate
  • Nonlocality
  • Quantum measurement

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