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106 papers · 1 filter
Perturbation theory of rotating scalar fields and vacuum insensitivity to rotation
Ryo Kuboniwa, Kazuya Mameda
We formulate the finite-temperature perturbation theory of interacting scalar fields under external rotation. Because of the translational non-invariance in the radial direction, G…
Nonlinear chiral kinetic theory
Kazuya Mameda
From quantum field theory, we derive the chiral kinetic theory involving nonlinear quantum corrections coupled with spacetime-dependent electromagnetic fields and fluid velocity gr…
Exact Solutions v.s. Perturbative Calculations of Finite - Hybrid-Matrix-Model
Naoyuki Kanomata, Akifumi Sako
There is a matrix model corresponding to a scalar field theory called Grosse-Wulkenhaar model, which is renormalizable by adding a harmonic oscillator potential to scalar t…
A baby--Skyrme model with anisotropic DM interaction: Compact skyrmions revisited
Funa Hanada, Nobuyuki Sawado
We consider a baby--Skyrme model with Dzyaloshinskii--Moriya interaction (DMI) and two types of potential terms. The model has a close connection with the vacuum functional of ferm…
Revisiting Atiyah-Hitchin manifold in the generalized Legendre transform
Masato Arai, Kurando Baba, Radu A. Ionas
We revisit construction of the Atiyah-Hitchin manifold in the generalized Legendre transform approach. This is originally studied by Ivanov and Rocek and is subsequently investigat…
Higher Berry Phase of Fermions and Index Theorem
Yichul Choi, Kantaro Ohmori
When a quantum field theory is trivially gapped, its infrared fixed point is an invertible field theory. The partition function of the invertible field theory records the response…