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7 papers · 2 filters
Boundary States as Holographic Duals of Trivial Spacetimes
Masamichi Miyaji, Shinsei Ryu, Tadashi Takayanagi +1
We study real-space quantum entanglement included in conformally invariant boundary states in conformal field theories (CFTs). First, we argue that boundary states essentially have…
Yang-Baxter deformations and string dualities
Takuya Matsumoto, Kentaroh Yoshida
We further study integrable deformations of the AdSS superstring by following the Yang-Baxter sigma model approach with classical -matrices satisfying the classica…
Gradient Flow of O(N) nonlinear sigma model at large N
Sinya Aoki, Kengo Kikuchi, Tetsuya Onogi
We study the gradient flow equation for the O(N) nonlinear sigma model in two dimensions at large N. We parameterize solution of the field at flow time t in powers of bare fields b…
Homogeneous Instantons in Bigravity
Ying-li Zhang, Misao Sasaki, Dong-han Yeom
We study homogeneous gravitational instantons, conventionally called the Hawking-Moss (HM) instantons, in bigravity theory. The HM instantons describe the amplitude of quantum tunn…
On the continuity of the commutative limit of the 4d N=4 non-commutative super Yang-Mills theory
Masanori Hanada, Hidehiko Shimada
We study the commutative limit of the non-commutative maximally supersymmetric Yang-Mills theory in four dimensions (N=4 SYM). The commutative limits of non-commutative spaces are…
Entanglement entropy in Galilean conformal field theories and flat holography
Arjun Bagchi, Rudranil Basu, Daniel Grumiller +1
We present the analytical calculation of entanglement entropy for a class of two dimensional field theories governed by the symmetries of the Galilean conformal algebra, thus provi…