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A gravitational realization of Courant--Hilbert deformations
Osamu Fukushima, Miyabi Kurihara, Takaki Matsumoto +1
Courant--Hilbert (CH) deformations unify broad classes of solvable stress-tensor flows including and root-. However, a gravitational action that systematically…
Courant-Hilbert deformations of Yang-Baxter sigma models
Osamu Fukushima, Takaki Matsumoto, Kentaroh Yoshida
We present integrable deformations of Yang-Baxter (YB) sigma models based on the Courant-Hilbert (CH) construction. To this end, we employ the four-dimensional Chern-Simons theory,…
The Courant-Hilbert construction in 4D Chern-Simons theory
Osamu Fukushima, Takaki Matsumoto, Kentaroh Yoshida
We consider the Courant-Hilbert (CH) construction of integrable deformations of a two-dimensional principal chiral model (2D PCM) in the context of the four-dimensional Chern-Simon…
Resonances in Lifetimes of AdS Oscillon
Takaki Matsumoto, Kanta Nakano, Ryosuke Suda +1
Oscillons are classical oscillatory solutions with very long but finite lifetimes in real scalar field theories with appropriate potentials. An interesting feature is that resonanc…
Non-perturbative effects in JT gravity from KdV equations
Yasuyuki Hatsuda, Takaki Matsumoto, Kazumi Okuyama
It is well-known that the partition function of the Jackiw-Teitelboim (JT) gravity is obtained by an integral transformation of volumes of moduli spaces for Riemann surfaces, also…
Oscillons in AdS space
Takaaki Ishii, Takaki Matsumoto, Kanta Nakano +2
We study oscillons in a real scalar field theory in a (3+1)-dimensional AdS space with global coordinates. The initial configuration is given by a Gaussian shape with an appropriat…