2008/12/31 by Angel Paredes, Ángel Paredes, Kasper Peeters +1 · 1 citation
Physics and Astronomy · #Acceleration #Black Holes and Theoretical Physics #Black hole (networking) #Classical mechanics #Cosmology and Gravitation Theories #Mathematical physics #Minkowski space #Observer (physics) #Physics #Quantum Electrodynamics and Casimir Effect #Quantum mechanics #String (physics) #Unruh effect #hep-ph #hep-th
paper · pdf · doi:10.1088/1126-6708/2009/04/015
published as JHEP 0904:015,2009 · 27 pages, 9 figures; v2: references added; v3: various points clarified, published version
arxiv created 2009/03/31 · openalex publication_date 2009/04/03 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We analyse the effect of velocity and acceleration on the temperature felt by particles and strings in backgrounds relevant in holographic models. First, we compare accelerated strings and strings at finite temperature. We find that for fixed Unruh temperature felt by the string endpoints, the screening length is smaller for the accelerated Wilson loop than for the static one in a thermal background of the same temperature; hence acceleration provides a "more efficient" mechanism for melting of mesons. Secondly, we show that the velocity-dependence of the screening length of the colour force, previously obtained from a moving Wilson loop in a finite temperature background, is not specific for the string, but is a consequence of the generic fact that an observer which moves with constant velocity in a black hole background measures a velocity-dependent temperature. Finally, we analyse accelerated particles and strings in the AdS black hole background, and show that these feel a temperature which increases as a function of time. As a byproduct of our analysis we find a global Minkowski embedding for the planar AdS black hole.