Physics and Astronomy
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517,985 subject pages: 4,516 OpenAlex topics and 513,469 Library of Congress subjects. Exact coverage and source dates · Numeric map and gap method
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Nonlinear Photonic Systems
Dust and Plasma Wave Phenomena
Color Science and Applications
Advanced Condensed Matter Physics
Quantum and Classical Electrodynamics
X-ray Spectroscopy and Fluorescence Analysis
Superconducting and THz Device Technology
Quantum many-body systems
Semiconductor materials and interfaces
Digital Holography and Microscopy
Nuclear Physics and Applications
Relativity and Gravitational Theory
Quantum, superfluid, helium dynamics
Atomic and Subatomic Physics Research
Random lasers and scattering media
Advanced Frequency and Time Standards
Vacuum and Plasma Arcs
Advanced Optical Sensing Technologies
Quantum Electrodynamics and Casimir Effect
Experimental and Theoretical Physics Studies
Statistical Mechanics and Entropy
Radio Astronomy Observations and Technology
Superconductivity in MgB2 and Alloys
Advanced Mathematical Theories and Applications
Opinion Dynamics and Social Influence
NMR spectroscopy and applications
Strong Light-Matter Interactions
Space exploration and regulation
Crystallography and Radiation Phenomena
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