4 citations · 4 across the 7 of their papers we have counts for
7 papers
Quantum Geometric Origin of Hall Viscosity and Nonlocal Hall Conductivity in Lattice Bands
Danyu Shu, Ryotaro Sano, Ai Yamakage +2
We show that Hall viscosity in lattice bands is governed by a band-projected electric quadrupole encoded within the quantum geometry: Berry curvature sets the projected-coordinate…
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…
Gyromagnetic Quantum Friction in Rayleigh Vorticity Baths
Mamoru Matsuo, Ryotaro Sano, Ai Yamakage +2
We identify an intrinsic zero-temperature relaxation channel for near-surface spins gyromagnetically coupled to Rayleigh-wave vorticity. This surface-mode contribution requires no…
Valley Hall Viscosity in Gapped Graphene with and without a Magnetic Field
Danyu Shu, Hiroshi Funaki, Ai Yamakage +2
Hall viscosity is conventionally defined through the stress response to time-dependent strain, a perturbation that is difficult to implement in solid-state experiments. We formulat…
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…
Directional propagation of quantum Hall viscous fluid by nano-structural engineering
Hiroshi Funaki, Ai Yamakage, Ryotaro Sano +1
We present a microscopic theory of the viscous electron fluid in the quantum Hall state based on the nonequilibrium Green's function method and the von Neumann lattice representati…
Exploring Superfluid in Dilute Spin-Polarized Neutron Matter
Hiroyuki Tajima, Hiroshi Funaki, Yuta Sekino +2
We explore the theoretical possibility of neutron superfluid in dilute spin-polarized neutron matter, which may be relevant to the crust region of a magnetized neutron star…