Cross-disciplinary physics and related areas of science and technology

Statistical physics and thermodynamics

The statistical physics analysis of learning parametric models was revisited by combining the replica method with a grand canonical ensemble and variational approach, enabling prediction error estimation for learning systems with real data.

Cross-disciplinary physics and related areas of science and technology

Magnetic properties in condensed matter

Topochemical exchange converts Li₂CoTi₃O₈ into metastable Co₂Ti₃O₈ with a diamond network, showing strong J₁–J₂ frustration, T_N near 4.4 K, and four magnetization steps up to 50 T.

Electron states in condensed matter

Mathematical methods, classical and quantum physics, relativity, gravitation, numerical simulation, computational modeling

The proposed hybrid quantum-classical computing method enables practical calculations of quasiparticle band structures to expand the possibilities for quantum materials research.

Cross-disciplinary physics and related areas of science and technology

Dielectric, optical, and other properties in condensed matter

Electromagnetism, optics, acoustics, heat transfer, and classical and fluid mechanics

Electronic structure and electrical properties of surfaces and nanostructures

Structure and mechanical and thermal properties in condensed matter

The special topics edition of the Journal of the Physical Society of Japan presents five new review articles offering cutting-edge information on the emerging field of topological photonics.

Cross-disciplinary physics and related areas of science and technology

Electromagnetism, optics, acoustics, heat transfer, and classical and fluid mechanics

We quantitatively elucidated for the first time the electronic polarization structure in epitaxial YbFe₂O₄ thin films by measuring the angle dependence of second-order nonlinear optical signals.