FieldsMathematical methods, classical and quantum physics, relativity, gravitation, numerical simulation, computational modeling
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Topological Properties of the Periodic Toda Lattice: Analogy with the Thouless Pump
2023-8-8
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
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Towards a New Phase in Materials Science with Hyperordered Structures
2023-5-1
A Special Topics edition of the Journal of the Physical Society of Japan features articles discussing recent advancements in hyperordered structures in materials, their applications, and the techniques for observing them.
Structure and mechanical and thermal properties in condensed matter
Cross-disciplinary physics and related areas of science and technology
Dielectric, optical, and other properties in condensed matter
Electron states in condensed matter
Atomic and molecular physics
Mathematical methods, classical and quantum physics, relativity, gravitation, numerical simulation, computational modeling
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Tensor Networks Across Physics
2022-6-7
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
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A Two-step Creation of Phonon Entanglement with Quantized Light
2021-12-28
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
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Generalizing Poisson Algebra with Geometry
2021-9-6
Using a differential geometric interpretation of Hamiltonian mechanics, a generalized Poisson bracket formulation is developed for a three-dimensional phase space characterized by a triplet of canonical variables.
Mathematical methods, classical and quantum physics, relativity, gravitation, numerical simulation, computational modeling
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PTEP SPECIAL SECTION
Atoms Trapped with Light Behave Like a Dissipative Quantum System
2021-7-19
A team of researchers from Japan experimentally realize, for the first time, a dissipative, parity-time symmetric, many-body quantum system from ultracold atoms trapped in an optical lattice.
Mathematical methods, classical and quantum physics, relativity, gravitation, numerical simulation, computational modeling
Gases, plasmas, electric discharges, and beams
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PTEP SPECIAL SECTION
A Quantum Description of Physical Systems with Non-real Energies
2021-7-19
While quantum systems are traditionally described by Hermitian Hamiltonians, the formalism is extendable to a non-Hermitian description for systems that are dissipative or obey parity-time symmetry.
Mathematical methods, classical and quantum physics, relativity, gravitation, numerical simulation, computational modeling
Nuclear physics
Electron states in condensed matter
Gases, plasmas, electric discharges, and beams
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Random Numbers Can Help Solve Difficult Problems in Many-body Physics
2021-3-29
Theorists review a random state vector-based description of quantum many-body systems which helps greatly reduce the computational burden involved in their numerical simulations, opening doors to applications in quantum computing.
Mathematical methods, classical and quantum physics, relativity, gravitation, numerical simulation, computational modeling
Electronic transport in condensed matter
Magnetic properties in condensed matter
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A New Approach to Solving Periodic Differential Systems
2021-3-29
Mathematicians and physicists are well acquainted with second-order ordinary differential equations (ODE), the most prominent of them being the class of equations that govern oscillatory motion.
Mathematical methods, classical and quantum physics, relativity, gravitation, numerical simulation, computational modeling
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Hybrid Quantum–Classical Algorithms: At the Verge of Useful Quantum Computing
2021-3-22
Scientists discuss the recent progress in algorithms that have enabled hybrid quantum–classical computers, which has brought the quest to realize useful quantum computing much closer to its finish line.
Mathematical methods, classical and quantum physics, relativity, gravitation, numerical simulation, computational modeling
Cross-disciplinary physics and related areas of science and technology
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Solving Quantum Equations with Gauge Fields: How Explicit Integrators Based on a Bipartite Lattice and Affine Transformations Can Help
2021-3-15
We proposed an explicit numerical integrator consisting of affine transformation pairs resulting from the checkerboard lattice for spatial discretization. It can efficiently solve time evolution equations that describe dynamical quantum phenomena under gauge fields, e.g., generation, motion, interaction of quantum vortices in superconductors or superfluids.
Mathematical methods, classical and quantum physics, relativity, gravitation, numerical simulation, computational modeling
Superconductivity