TY - JOUR
T1 - Thermodynamics and cosmological constant of non-local field theories from p-adic strings
AU - Biswas, Tirthabir
AU - Cembranos, Jose A.R.
AU - Kapusta, Joseph I
PY - 2010
Y1 - 2010
N2 - 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.
AB - 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.
KW - Bosonic strings
KW - Cosmology of theories beyond the SM
KW - String duality
KW - Thermal field theory
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U2 - 10.1007/JHEP10(2010)048
DO - 10.1007/JHEP10(2010)048
M3 - Article
AN - SCOPUS:78649709161
SN - 1126-6708
VL - 2010
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 10
M1 - 48
ER -