Carl E Dolby et al 2003 Class. Quantum Grav. 20 4861 doi:10.1088/0264-9381/20/22/010
Carl E Dolby1, Mark D Goodsell2 and Stephen F Gull3
Show affiliationsA coordinate system is constructed for a general accelerating observer in 1 + 1 dimensions, and is used to determine the particle density of the massless Dirac vacuum for that observer. Equations are obtained for the spatial distribution and frequency distribution of massless fermions seen by this observer, in terms of the rapidity function of the observer's worldline. Examples that are considered include the uniformly accelerating observer as a limiting case, but do not involve particle horizons. Only the low frequency limit depends on the possible presence of particle horizons. The rest of the spectrum is 'almost thermal' whenever the observer's acceleration is 'almost uniform'.
04.62.+v Quantum fields in curved spacetime
81Txx Quantum field theory; related classical field theories (See also 70Sxx)
Issue 22 (21 November 2003)
Received 23 June 2003
Published 6 October 2003
Carl E Dolby et al 2003 Class. Quantum Grav. 20 4861
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