منابع مشابه
Dilaton spacetimes with a Liouville potential
We find and study solutions to the Einstein equations in D dimensions coupled to a scalar field source with a Liouville potential under the assumption of D−2 planar symmetry. The general static or time-dependent solutions are found yielding three classes of SO(D − 2) symmetric spacetimes. In D = 4 homogeneous and isotropic subsets of these solutions yield planar scalar field cosmologies. In D =...
متن کاملComparing matrix models and QCD lattice data with chemical potential
We present a quantitative analysis of the microscopic Dirac spectrum which is complex in the presence of a nonvanishing quark chemical potential. Data from quenched SU(3) lattice simulations for different volumes V and small values of the chemical potential μ are compared to analytical predictions from matrix models. We confirm the existence of two distinct limits for weakly and strongly nonher...
متن کاملThe Dilaton Potential from N = 1 ∗
Recent understanding of N = 1 supersymmetric theory (mass deformed N = 4) has allowed the possibility of finding an exact superpotential which encodes the properties of the different phases of the theory. We consider this superpotential as an illustrative example for the source of a nontrivial scalar potential for the string theory dilaton and study its properties. The superpotential is charact...
متن کاملNew Hairy Black Hole Solutions with a Dilaton Potential
We consider black hole solutions with a dilaton field possessing a nontrivial potential approaching a constant negative value at infinity. The asymptotic behaviour of the dilaton field is assumed to be slower than that of a localized distribution of matter. A nonabelian SU(2) gauge field is also included in the total action. The mass of the solutions admitting a power series expansion in 1/r at...
متن کاملUsing the Dilaton Potential to Obtain String Cosmology Solutions
We examine the string cosmology equations with a dilaton potential, contrasting the requirements that the equations and their solutions have the desired a → 1/a pre-big bang symmetry, and give a generic algorithm for obtaining solutions with desired evolutionary properties. This enables us to find pre-big bang type solutions that are regular at t = 0, and with suitable dilaton behaviour. Howeve...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review D
سال: 2020
ISSN: 2470-0010,2470-0029
DOI: 10.1103/physrevd.101.075025