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224 papers · 1 filter
Path optimization method with use of neural network for the sign problem in field theories
Akira Ohnishi, Yuto Mori, Kouji Kashiwa
We investigate the sign problem in field theories by using the path optimization method with use of the neural network. For theories with the sign problem, integral in the complexi…
Axial U(1) symmetry and Dirac spectra in high-temperature phase of lattice QCD
Kei Suzuki, Sinya Aoki, Yasumichi Aoki +3
The axial symmetry in the high-temperature phase is investigated with lattice QCD simulations. The gauge ensembles are generated with Möbius domain-wall fermions,…
Majorana multipole response of topological superconductors
Shingo Kobayashi, Ai Yamakage, Yukio Tanaka +1
In contrast to elementary Majorana particles, emergent Majorana fermions (MFs) in condensed-matter systems may have electromagnetic multipoles. We developed a general theory of mag…
Multimessenger Implications of AT2018cow: High-Energy Cosmic Ray and Neutrino Emissions from Magnetar-Powered Super-Luminous Transients
Ke Fang, Brian D. Metzger, Kohta Murase +2
Newly-born, rapidly-spinning magnetars have been invoked as the power sources of super-luminous transients, including the class of "fast-luminous optical transients" (FBOTs). The e…
Kinetic equation for Lifshitz scalar
Shinji Mukohyama, Yota Watanabe
Employing the method of Wigner functions on curved spaces, we study classical kinetic (Boltzmann-like) equations of distribution functions for a real scalar field with the Lifshitz…
Ultrahigh-energy cosmic-ray nuclei and neutrinos from engine-driven supernovae
B. Theodore Zhang, Kohta Murase
Transrelativistic supernovae (SNe), which are likely driven by central engines via jets or winds, have been among candidate sources of ultrahigh-energy cosmic rays (UHECRs). We inv…