Here are the categories and category groups in the physics arXiv listed with sample topics. Please use restraint when cross-listing new submissions.

The moderators for each category are listed in parentheses.

physics.cond-mat Condensed Matter (Paul Fendley)

physics.hep High-Energy Physics

physics.acc-ph Accelerator Physics (Robert Ryne)

physics.ao-ph Atmospheric and Oceanic Physics

physics.astro-ph Astrophysics

physics.atm-clus Atomic and Molecular Clusters (Yuri Ralchenko)

physics.atom-ph Atomic Physics

physics.bio-ph Biological Physics

physics.chem-ph Chemical Physics

physics.class-ph Classical Physics

physics.comp-ph Computational Physics

physics.data-an Data Analysis, Statistics and Probability

physics.dis-nn Disordered Systems and Neural Networks (David Grier)

physics.ed-ph Physics Education

physics.flu-dyn Fluid Dynamics

physics.gen-ph General Physics

physics.geo-ph Geophysics

physics.gr-qc General Relativity and Quantum Cosmology (Donald Marolf, Matthew Visser)

physics.hep-ex High Energy Physics - Experiment (Nickolas Solomey)

physics.hep-lat High Energy Physics - Lattice (Robert Edwards, Tanmoy Bhattacharya)

physics.hep-ph High Energy Physics - Phenomenology (Jonathan Feng)

physics.hep-th High Energy Physics - Theory (Jacques Distler, Paul Fendley)

physics.hist-ph History of Physics

physics.ins-det Instrumentation and Detectors

physics.math-ph Mathematical Physics (Paul Fendley, Bruno Nachtergaele)

physics.med-ph Medical Physics

physics.mes-hall Mesoscopic Systems and Quantum Hall Effect (Nicholas Read)

physics.mtrl-sci Materials Science

physics.nucl-ex Nuclear Experiment (Thomas Cohen)

physics.nucl-th Nuclear Theory (Thomas Cohen)

physics.optics Optics

physics.plasm-ph Plasma Physics (Greg Hammett)

physics.pop-ph Popular Physics

physics.quant-ph Quantum Physics (Daniel Gottesman, Lev Vaidman)

physics.soc-ph Physics and Society

physics.soft Soft Condensed Matter (David Grier)

physics.space-ph Space Physics

physics.stat-mech Statistical Mechanics (Nicholas Read)

physics.str-el Strongly Correlated Electrons (Sergey Budko, Rena Zieve)

physics.supr-con Superconductivity (John Clem, Rena Zieve)

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