Detection of negative energy: 4-Dimensional examples

P. C.W. Davies, Adrian C. Ottewill

Research output: Contribution to journalArticlepeer-review

33 Scopus citations


We study the response of switched particle detectors to static negative energy densities and negative energy fluxes. It is demonstrated how the switching leads to excitation even in the vacuum and how negative energy can lead to a suppression of this excitation. We obtain quantum inequalities on the detection similar to those obtained for the energy density by Ford and co-workers and in an "operational" context by Helfer. We reexamine the question "Is there a quantum equivalence principle?" in terms of our model. Finally, we briefly address the issue of negative energy and the second law of thermodynamics.

Original languageEnglish (US)
Article number104014
Pages (from-to)1040141-10401410
Number of pages9361270
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number10
StatePublished - May 10 2002
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Detection of negative energy: 4-Dimensional examples'. Together they form a unique fingerprint.

Cite this