Quantum Cheshire Cats

Sandu Popescu, Y Aharonov, D Rohrlich, Paul Skrzypczyk

Research output: Contribution to journalArticle (Academic Journal)peer-review

119 Citations (Scopus)


In this paper we present a quantum Cheshire Cat. In a pre- and post-selected experiment we find the Cat in one place, and its grin in another. The Cat is a photon, while the grin is its circular polarization.
Original languageEnglish
Article number113015
JournalNew Journal of Physics
Early online date3 Feb 2012
Publication statusPublished - 7 Nov 2013


  • quantum
  • padaroxes
  • foundation
  • quantum effects
  • weak measurements


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