
Discovering a Local Fluctuation Theorem with Machine Learning
20231020
A groundbreaking study reveals a new timelocal fluctuation theorem using machine learning, revolutionizing our understanding of deterministic nonequilibrium steady state systems.
Fundamental Theory of Condensed Matter Physics, Statistical Mechanics, Fluid Dynamics,
Statistical physics and thermodynamics
Measurement, instrumentation, and techniques

Study of Unconventional Slow Critical Dynamics of the Frustrated Magnet DyRu_{2}Si_{2} ~Spontaneous Alignment of Emergent Ferromagnetic Spin Textures?~
20231017
We measured the ac susceptibility of the frustrated magnet DyRu_{2}Si_{2}, in the partially ordered phase, where emergent 2dimensional (2D) disordered planes appear, and revealed extraordinarily slow and unconventional dynamics, which could be attributed to the highly fluctuating nature of the emergent 2D planes.
Magnetic properties in condensed matter

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Dzyaloshinskii–Moriya Interactions in Magnetism, Electricity, and Electronics
20231012
A collection of papers in the Journal of the Physical Society of Japan advances our understanding of Dzyaloshinskii–Moriya interaction and paves the way for developing next generation computing and electronic systems.
Magnetic properties in condensed matter
Electron states in condensed matter
Dielectric, optical, and other properties in condensed matter

Going Beyond Einstein with Modified Theories of Gravity
202398
This study comprehends a way to probe modified theories of gravity on cosmological scales by combining theoretical advancements and observational data for upcoming cosmological observations.
Astrophysics, cosmology, and geophysics

Antisymmetric Exchange Interaction Selects the Cycloidal Helicity: Observation by Resonant Xray Diffraction
202395
The unique sense of rotation of the cycloidal magnetic order was clarified in noncentrosymmetric EuIrGe_{3} by using circularly polarized resonant xray diffraction.
Magnetic properties in condensed matter

How Many Excitons Can Combine?
2023831
Quantum diffusion Monte Carlo simulation demonstrated the formation of polyexcitons in twodimensional multivalley semiconductor systems, where all exciton pairs were energetically bound by equalstrength “chemical bonds.”
Dielectric, optical, and other properties in condensed matter
Electronic structure and electrical properties of surfaces and nanostructures

Exploring Vortex Dynamics in a Multiband Superconductor
2023822
We measured the microwave fluxflow Hall effect in FeSe, where the cancellation of holes and electrons was observed. This is a novel effect of multiband superconductors.
Superconductivity

Toward Accurate Diamond Quantum Sensing
2023816
A systematic investigation of the optical power dependence of the response of diamond quantum sensors provides valuable guidelines for accurate magnetic field measurements.
Dielectric, optical, and other properties in condensed matter

Topological Properties of the Periodic Toda Lattice: Analogy with the Thouless Pump
202388
We find that the periodic Toda lattice belongs to the same topological class as the Thouless pump.
Mathematical methods, classical and quantum physics, relativity, gravitation, numerical simulation, computational modeling
Electronic structure and electrical properties of surfaces and nanostructures

Double Superconductivity in Nodal Line Material NaAlSi; Coexistence of Bulk and 2D Superconductivities
2023726
Unique diamagnetic torque signals are found in the nodal line material NaAlSi, which suggests the presence of double superconductivity; i.e., bulk superconductivity and 2D superconductivity on the crystal surface.
Superconductivity
Electronic structure and electrical properties of surfaces and nanostructures