10 papers
Tunable Mediated Interactions Near Spontaneous Symmetry Breaking: From Yukawa to Coulomb and Dzyaloshinskii--Moriya Interactions
Hoshu Hiyane, Hiroyuki Tajima
We propose a realization of tunable long-range mediated interactions generated by Nambu-Goldstone (NG) modes near spontaneous symmetry breaking. An effective exchange interaction e…
Programmable Spin Conversion in Gradient Quantum Matter
Mamoru Matsuo, Yuta Sekino, Hiroyuki Tajima
We propose programmable spin conversion in ultracold gases as gradient quantum matter, whose spin-dependent self-energy varies in space. Quantum kinetic theory shows that a dissipa…
Nonequilibrium Andreev transport at the QGP-2SC interface
Tingyu Zhang, Honoka Hoshino, Hiroyuki Tajima +2
We discuss a nonequilibrium Andreev reflection at an interface between quark-gluon plasma (QGP) and two-flavor color superconducting (2SC) quark matter. Based on the Schwinger-Keld…
Noise spectroscopy of two-body loss as a probe of dynamical bulk viscosity in ultracold atomic gases
Tingyu Zhang, Hiroyuki Tajima, Takeo Kato
We show that the correlated noise of the two-body loss current provides access to the dynamical bulk viscosity in weakly dissipative quantum gases. Starting from the Lindblad equat…
Thermal Spin Polarization Driven by Nuclear Spin-Orbit Coupling in Neutron Star Pasta
Hiroyuki Tajima, Yuta Sekino, Hiroshi Funaki +3
We discuss anomalous spin polarization on the surface of nuclear pasta in a neutron star, driven by a nuclear spin-orbit interaction. We present an effective two-band model of surf…
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…