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

One-Way Optical Waveguide Realized by Edge Modes of Topological Photonic Crystals

A one-way optical waveguide was realized on the boundary between two types of photonic crystals with different topological properties, which were demonstrated by high-resolution infrared reflection measurements.

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

Dielectric, optical, and other properties in condensed matter

Exploring Recent Advances in the Physics of Biofluid Locomotion

This Special Topics Edition of the JPSJ describes the latest advances in the field of biofluid locomotion, shedding light on the underlying physics behind the movement of organisms that swim and fly.

Measurement, instrumentation, and techniques

Cross-disciplinary physics and related areas of science and technology

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

Statistical physics and thermodynamics

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

Structure and mechanical and thermal properties in condensed matter

Microswimmer Hydrodynamics Through the Lens of Jeffery’s Orbits

This review article summarizes the latest progress on Jeffery’s orbits and how they relate to the motion of microswimmers of various shapes, including sperms, bacteria, and even microrobots.

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

Cross-disciplinary physics and related areas of science and technology

Inertial Focusing of Red Blood Cells in Square Tube Flows

Red blood cells flowing through square capillary tubes were observed to migrate towards four points located on the diagonal in the tube cross-section, owing to their deformability and inertia.

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

A Two-step Creation of Phonon Entanglement with Quantized Light

Dynamics of photoinduced quantum entanglement generation between phonons is theoretically revealed. The results contribute to the study of fundamental theoretical problems within quantum dynamics of photoinduced phase transitions and quantum information science.

Dielectric, optical, and other properties in condensed matter

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

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

Of Spins and Atoms: Combining Rotations to Obtain Directed Motion

The coupling between surface acoustic waves and spin waves is shown to depend strongly on the angle between the acoustic wavevector and magnetization. For a particular angle, it completely vanishes in one direction, which enables a unidirectional generation of surface acoustic waves by a ferromagnetic resonance.

Magnetic properties in condensed matter

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