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13 papers · 2 filters
Exact solutions of embedding the four-dimensional perfect fluid in a five- or higher-dimensional Einstein spacetime and the cosmological interpretations
Jie Ren, Xin-He Meng, Liu Zhao
We investigate an exact solution that describes the embedding of the four-dimensional (4D) perfect fluid in a five-dimensional (5D) Einstein spacetime. The effective metric of the…
Comments on Chemical Potentials in AdS/CFT
Shin Nakamura
We propose a method for identifying holographic chemical potentials of conserved charges. The guiding principle is the consistency of the identification with the thermodynamic rela…
Fermion Production in Strong Magnetic Field and its Astrophysical Implications
Hyun Kyu Lee, Yongsung Yoon
We calculate the effective potential of a strong magnetic field induced by fermions with anomalous magnetic moments which couple to the electromagnetic field in the form of the Pau…
Mirror duality and noncommutative tori
Eunsang Kim, Hoil Kim
In this paper, we study a mirror duality on a generalized complex torus and a noncommutative complex torus. First, we derive a symplectic version of Riemann condition using mirror…
Dynamics of false vacuum bubbles with nonminimal coupling
Bum-Hoon Lee, Chul H. Lee, Wonwoo Lee +2
We study the dynamics of false vacuum bubbles. A nonminimally coupled scalar field gives rise to the effect of negative tension. The mass of a false vacuum bubble from outside obse…
Fluctuations around the Tachyon Vacuum in Open String Field Theory
O-Kab Kwon, Bum-Hoon Lee, Chanyong Park +1
We consider quadratic fluctuations around the tachyon vacuum numerically in open string field theory. We work on a space spanned by basis string states used…