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11 papers · 2 filters
Gravitational Waves from Preheating in M-flation
Amjad Ashoorioon, Brandon Fung, Robert B. Mann +2
Matrix inflation, or M-flation, is a string theory motivated inflationary model with three scalar field matrices and gauge fields in the adjoint representation of the $\mathbf{U}(N…
Comments on solutions from M2-branes on complex curves and the backreacted Kähler geometry
Nakwoo Kim
We consider solutions of M-theory which are obtained by twisted compactifications of M2-branes on a complex curve. They are of a generalized class, in the sense that the no…
Abelian discrete symmetries Z_{N} and Z_{nR} from string orbifolds
Jihn E. Kim
We show that Abelian discrete symmetries Z_{N} and Z_{nR} from string orbifolds result by assigning vacuum expectation values(VEVs) only to specified singlets. These singlets obtai…
Some properties of the de Sitter black holes in three dimensional spacetime
Yongjoon Kwon, Soonkeon Nam, Jong-Dae Park
We investigate the physical properties of the de Sitter spacetime and new type-de Sitter black holes in new massive gravity, a higher derivative gravity theory in three dimensions.…
Composite-particle hydrodynamics from dyonic black branes
Kyung Kiu Kim, Nakwoo Kim, Yun-Long Zhang
We construct effective hydrodynamics for composite particles in (2+1) dimensions carrying a magnetic flux by employing a holographic approach. The hydrodynamics is obtained by pert…
Extremal Black Holes and First Law of Thermodynamics
Maria Johnstone, M. M. Sheikh-Jabbari, Joan Simon +1
We study the low temperature expansion of the first law of thermodynamics for near-extremal black holes. We show that for extremal black holes with non-vanishing entropy, the leadi…