期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 10, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP10(2010)048
关键词
Thermal Field Theory; String Duality; Cosmology of Theories beyond the SM; Bosonic Strings
资金
- U.S. DOE [DE-FG02-87ER40328, DOE/DE-FG02-94ER40823]
- DGICYT, Spain [FPA 2008-00592]
- MICINN [MULTIDARK CSD2009-00064]
- [CAM/UCM 910309]
We develop the thermodynamics of field theories characterized by non-local propagators. We analyze the partition function and main thermodynamic properties arising from perturbative thermal loops. We focus on the p-adic models associated with the tachyon phenomenology in string theories. We reproduce well known features of these theories, but also obtain many new results. In particular, we explain how to maintain consistency of such non-local theories by avoiding the appearance of ghosts at finite temperature. As a consequence of this fact, the vacuum energy in p-adic theories becomes positive. It is also hierarchically suppressed, and we explore the parameter space where it is consistent with the observed value of the cosmological constant.
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