
PTEP SPECIAL SECTION
New Phases of Matter: Topological Physics in the 21^{st} Century
2022719
Researchers from Japan highlight in an editorial our current understanding of topological phases of matter, focusing on the classification of the newly discovered symmetry protected topological phases.
Theoretical Particle Physics
Fundamental Theory of Condensed Matter Physics, Statistical Mechanics, Fluid Dynamics,
Superconductivity

Giant Vortices of Fish: Mechanisms and Patterns
2022712
The origin of giant rotating clusters of fish is revealed by a new agentbased model that incorporates the topological nature of interactions and the escape response characteristic to fish.
Crossdisciplinary physics and related areas of science and technology

PICKUP
Calculating Impedances for a Particle Accelerator
202277
In a new study, scientists provide a more comprehensive picture of dealing with the impedances of a twodimensional conductive cylindrical beam pipe with walls of finite thickness and spacecharge forces simultaneously.
Beam Physics

Origin of Metamagnetic Transition (MMT) in the SpinTriplet Superconductivity in UTe_{2}
202274
Stateoftheart magnetostriction measurements in a pulsedmagnetic field reveal the origin of a metamagnetic transition of spintriplet superconductor UTe_{2}. We propose that the uranium valence fluctuation plays a crucial role in its metamagnetic and superconducting transitions.
Superconductivity
Magnetic properties in condensed matter

PICKUP
Unraveling the Unique Properties of Icosahedral Quasicrystals
2022628
Scientists review the magnetism, nonFermi liquid behavior, and quantum critical behavior observed in icosahedral quasicrystals (QCs), and compare these properties with that of heavy fermions and approximant crystals.
Magnetic properties in condensed matter
Structure and mechanical and thermal properties in condensed matter
Crossdisciplinary physics and related areas of science and technology

PICKUP
Testing the Viability of Muon Accelerators
2022621
Researchers demonstrate the viability of a radiofrequency linear accelerator to accelerate stopped muons to the speed of light.
Experimental Particle Physics

New Chiral Molecular Ferroelectrics
2022614
A new chiral ferroelectric material is discovered in a purely organic system, 1,1’bi2naphthol・2 dimethyl sulfoxide (BINOL・2DMSO).
Dielectric, optical, and other properties in condensed matter

PICKUP
Tensor Networks Across Physics
202267
Researchers from Japan provide the first comprehensive review of the historical development of tensor networks from a statistical mechanics viewpoint, with a focus on its theoretical background.
Mathematical methods, classical and quantum physics, relativity, gravitation, numerical simulation, computational modeling
Statistical physics and thermodynamics
Magnetic properties in condensed matter

Towards Radionuclide Cancer Therapy with High Purity ^{177}Lu from Enriched ^{176}Yb Samples
202263
A method was developed to estimate the isotopic compositions of enriched ^{176}Yb sample required for producing radionuclide ^{177}Lu used for cancer therapy, with high radionuclide purity in accelerators.
Nuclear physics
Crossdisciplinary physics and related areas of science and technology

Simulating Strongly Coupled Quantum Field Theory with Quantum Algorithms
2022527
Nonperturbative quantum field theory problems can often be difficult to solve with classical algorithms. Researchers now develop quantum computing algorithms to understand such problems in the Hamiltonian formalism.
Theoretical Particle Physics