3 papers
nucl-th2025
Schwinger-Keldysh approach to tunneling transport at a hadron-quark interface
Tingyu Zhang, Hiroyuki Tajima, Motoi Tachibana
We theoretically discuss quantum tunneling transport and frictions at a hadron-quark matter interface based on the Schwinger-Keldysh approach combined with the tunneling Hamiltonia…
astro-ph.HE2025
Gyromagnetic Angular Momentum Interconversion in Neutron Stars
Hiroshi Funaki, Yuta Sekino, Hiroyuki Tajima +3
We propose a novel mechanism for angular momentum (AM) exchange between the crust and core of a neutron star (NS) via the gyromagnetic effect. Using extended hydrodynamics, we mode…
cond-mat.quant-gas2024
Thermomagnetic anomalies in quantum magnon transport caused by tunable junction geometries in cold atomic systems
Yuta Sekino, Yuya Ominato, Hiroyuki Tajima +2
We study magnon-driven spin and heat transport in a magnetic linear junction (MLJ) formed by two ferromagnets in optical lattices linked via linearly aligned bonds. Using the Schwi…