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SUMMARY:Quantum correlations in inflationary spectra and violation of Bell
 \ninequalities
DTSTART;VALUE=DATE-TIME:20060614T100000Z
DTEND;VALUE=DATE-TIME:20060614T110000Z
DTSTAMP;VALUE=DATE-TIME:20261112T203657Z
UID:indico-event-1517@indico.ific.uv.es
DESCRIPTION:The inflationary scenario succesfully accounts for the observe
 d properties of primordial density fluctuations in terms of amplification 
 of vacuum fluctuations. In spite of the macroscopic character of the final
  amplitudes\, we show that the standard inflationary distribution still ex
 hibits inherently quantum mechanical correlations (which cannot be mimicke
 d by any classical stochastic ensemble). We propose a Gedanken experiment 
 for which certain Bell inequalities are violated. We then compute the effe
 ct of decoherence and show that the violation persists provided that the d
 ecoherence lies below a certain non-vanishing threshold. Finally\, there e
 xists a higher threshold above which no violation of any Bell inequalities
  can occur. In this case only the corresponding distributions can be inter
 preted as stochastic ensembles of classical fluctuations. (talk based on a
 stro-ph/0510445)\n\nhttps://indico.ific.uv.es/event/1517/
LOCATION:Dpto. de Física Teórica (UVEG) Sala Seminarios
URL:https://indico.ific.uv.es/event/1517/
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