Physics – Quantum Physics
Scientific paper
2007-09-24
J.Phys.A41:032002,2008
Physics
Quantum Physics
9 pages, no figures; version to appear in JPA Fast Track Communications
Scientific paper
10.1088/1751-8113/41/3/032002
Creation of scalar massless particles in two-dimensional Minkowski space-time--as predicted by the dynamical Casimir effect--is studied for the case of a semitransparent mirror initially at rest, then accelerating for some finite time, along a specified trajectory, and finally moving with constant velocity. When the reflection and transmission coefficients are those in the model proposed by Barton, Calogeracos, and Nicolaevici [$r(w)=-i\alpha/(\w+i\alpha)$ and $s(w)=\w/(\w+i\alpha)$, with $\alpha\geq 0$], the Bogoliubov coefficients on the back side of the mirror can be computed exactly. This allows us to prove that, when $\alpha$ is very large (case of an ideal, perfectly reflecting mirror) a thermal emission of scalar massless particles obeying Bose-Einstein statistics is radiated from the mirror (a black body radiation), in accordance with previous results in the literature. However, when $\alpha$ is finite (semitransparent mirror, a physically realistic situation) the striking result is obtained that the thermal emission of scalar massless particles obeys Fermi-Dirac statistics. Possible consequences of this result are envisaged.
Elizalde Emilio
Haro Jaume
No associations
LandOfFree
Dynamical Casimir Effect and the Black Body Spectrum does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Dynamical Casimir Effect and the Black Body Spectrum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamical Casimir Effect and the Black Body Spectrum will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-276397