Paired Accelerated Frames

Details Paired Accelerated Frames Paired Accelerated Frames

1999-10-28

arxiv.org/abs/gr-qc/9910106v1

Int.J.Mod.Phys.A11:3667-3688, 1996

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

22 pages, Plain Tex, one figure. Also published in Proc. of the 7th Marcel Grossmann Meeting edited by R.T. Jantzen and G.M. K

Scientific paper

The geometrical and quantum mechanical basis for Davies' and Unruh's acceleration temperature is traced to a type of quantum mechanical (``achronal'') spin. Its existence and definition are based on pairs of causally disjoint accelerated frames. For bosons the expected spin vector of monochromatic particles is given by the ``Planckian power'' and the ``r.m.s. thermal fluctuation'' spectra. Under spacetime translation the spin direction precesses around that ``Planckian'' vector. By exhibiting the conserved achronal spin four-current, we extend the identification of achronal spin from single quanta to multiparticle systems. Total achronal spin conservation is also shown to hold, even in the presence of quadratic interactions.

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