5 papers
Holographic Dual of PT Symmetric BCFT
Ryota Maeda, Nanami Nakamura, Tadashi Takayanagi
We present a holographic dual of a two dimensional conformal field theory with non-hermitian but Parity-Time (PT) symmetric boundary conditions, by applying the AdS/BCFT duality an…
c-Theorem and improvement in non-compact conformal field theories
Nanami Nakamura, Yu Nakayama
Energy-momentum tensor in general conformal field theories have improvement ambiguity and it can affect the argument in deriving -theorem. While the derivation of Zamolodchikov'…
Revisiting the -theorem with the ANEC
Nanami Nakamura, Yu Nakayama, Ung Nguyen
The fundamental theorem in renormalization group flows in two dimensions is the -theorem, which dictates that the number of degrees of freedom must decrease monotonically along…
Traversable AdS Wormhole via Non-local Double Trace or Janus Deformation
Taishi Kawamoto, Ryota Maeda, Nanami Nakamura +1
We study (i) Janus deformations and (ii) non-local double trace deformations of a pair of CFTs, as two different ways to construct CFT duals of traversable AdS wormholes. First, we…
Non-hermitian Density Matrices from Time-like Entanglement and Wormholes
Jonathan Harper, Taishi Kawamoto, Ryota Maeda +2
We extensively explore the connections between time-like entanglement and non-hermitian density matrices in quantum many-body systems. We classify setups where we encounter non-her…