Phys. Rev. Lett. 103, 070403 (2009) [4 pages]Violation of Smooth Observable Macroscopic Realism in a Harmonic OscillatorReceived 5 February 2009; published 13 August 2009 We study the emergence of macrorealism in a harmonic oscillator subject to consecutive measurements of a squeezed action. We demonstrate a breakdown of dynamical realism in a wide parameter range that is maximized in a scaling limit of extreme squeezing, where it is based on measurements of smooth observables, implying that macroscopic realism is not valid in the harmonic oscillator. We propose an indirect experimental test of these predictions with entangled photons by demonstrating that local realism in a composite system implies dynamical realism in a subsystem. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.103.070403
DOI:
10.1103/PhysRevLett.103.070403
PACS:
03.65.Ta, 03.65.Sq, 03.65.Ud, 42.50.Dv
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.