Bosonic D-branes at finite temperature with an external field
نویسندگان
چکیده
منابع مشابه
Bosonic D-branes at finite temperature with an external field
Bosonic boundary states at finite temperature are constructed as solutions of boundary conditions at T 6= 0 for bosonic open strings with a constant gauge field Fab coupled to the boundary. The construction is done in the framework of the thermo field dynamics where a thermal Bogoliubov transformation maps states and operators to finite temperature. Boundary states are given in terms of states ...
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We derive the finite temperature description of bosonic D-branes in the thermo field approach. The results might be relevant to the study of thermical properties of D-brane systems. During the past several years, researches on the properties of D-branes, viewed either as solitons of low energy field theories [1] or as states in perturbative spectra of strings [2], has continued to grow unabated...
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We show that contrary to the claim made by Hallin and Liljenberg in Phys. Rev. D52 1150,(1995), (hep-th/9412188) the thermal correction to the thermal decay or pair production rate for a system placed in a heat bath in the presence of an external electric field, is always nonzero in the finite as well as infinite time limit. Using the formalism outlined there, we reestimate the decay rate for d...
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We review the construction of the D-branes at finite temperature as boundary states in the Fock space of thermal perturbative closed string. This is a talk presented by I. V. V. at Common Trends in Cosmology and Particle Physics June 2003, Balatonfüred, Hungary. [email protected] [email protected] [email protected]
متن کاملFermionic and bosonic pair creation in an external electric field at finite temperature using the functional Schrödinger representation.
We solve the time evolution of the density matrix both for fermions and bosons in the presence of a homogeneous but time dependent external electric field. The number of particles produced by the external field, as well as their distribution in momentum space is found for finite times. Furthermore, we calculate the probability of finding a given number of particles in the ensemble. In all cases...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2001
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.64.086005