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Search: authors:"Mitsutoshi Fujita"

5 papers found.
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Holographic entanglement entropy of a 1 + 1 dimensional p-wave superconductor

We examine the behavior of entanglement entropy S A EE of a subsystem A in a fully backreacted holographic model of a 1 + 1 dimensional p wave superconductor across the phase transition. For a given temperature, the system goes to a superconducting phase beyond a critical value of the charge density. The entanglement entropy, considered as a function of the charge density at a...

Holographic Chern-Simons defects

We study SU(N ) Yang-Mills-Chern-Simons theory in the presence of defects that shift the Chern-Simons level from a holographic point of view by embedding the system in string theory. The model is a D3-D7 system in Type IIB string theory, whose gravity dual is given by the AdS soliton background with probe D7 branes attaching to the AdS boundary along the defects. We...

Holographic Entanglement Entropy for d = 4 N = 2 SCFTs in F-Theory

Mitsutoshi Fujita 0 1 0 Subject Index: 121, 135 1 Department of Physics, University of Washington , Seattle, WA 98195-1560, USA We compute the holographic entanglement entropy in the gravity with

From Maxwell-Chern-Simons theory in AdS 3 towards hydrodynamics in 1 + 1 dimensions

We study Abelian Maxwell-Chern-Simons theory in three-dimensional AdS black hole backgrounds for both integer and non-integer Chern-Simons coupling. Such theories can be derived from various string theory constructions, which we review in the present work. In particular we find exact solutions in the low frequency, low momentum limit, ω, k ≪ T (hydrodynamic limit). Using the...

Towards a holographic Bose-Hubbard model

We present a holographic construction of the large-N Bose-Hubbard model. The model is based on Maxwell fields coupled to charged scalar fields on the AdS 2 hard wall. We realize the lobe-shaped phase structure of the Bose-Hubbard model and find that the model admits Mott insulator ground states in the limit of large Coulomb repulsion. In the Mott insulator phases, the bosons are...