We develop a theory of adiabatic orbital pumping, highlighting qualitative differences from
spin pumping. An oscillating magnetic field pumps not only orbital angular momentum …

Superconductors lacking both inversion symmetry and time-reversal symmetry have been
attracting much attention as a platform for exotic superconducting phases and anomalous …

Anapole superconductivity recently proposed for multiband superconductors [S. Kanasugi
and Y. Yanase, Commun. Phys. 5, 39 (2022) 2399-3650 10.1038/s42005-022-00804-7] is a …

We formulate the superfluid weight in unconventional superconductors with k-dependent
Cooper pair potentials based on the geometric properties of Bloch electrons. We apply the …

Quantum geometry characterizes the geometric properties of Bloch electrons in the wave
space, represented by the quantum metric and the Berry curvature. Recent studies have …

Magnetization can be induced by an electric field in systems without inversion symmetry P
and time-reversal symmetry T. This phenomenon is called the magnetoelectric (ME) effect …

The modern theory of polarization allows for the determination of the macroscopic end
charge of a truncated one-dimensional insulator, modulo the charge quantum e, from a …

We show that quantum geometry induces ferromagnetic fluctuation resulting in spin-triplet
superconductivity. The criterion for ferromagnetic fluctuation is clarified by analyzing …

Magnetic ordering beyond the standard dipolar order has attracted significant attention in
recent years, but it remains an open question how to effectively manipulate such nontrivial …

Parity-time-reversal symmetry (PT symmetry), a symmetry for the combined operations of
space inversion (P) and time reversal (T), is a fundamental concept of physics and …