00.	GENERAL
01.	Communication, education, history, and philosophy
01.10.-m	Announcements, news, and organizational activities
01.10.Cr	Announcements, news, and awards
01.10.Fv	Conferences, lectures, and institutes
01.10.Hx	Physics organizational activities
01.20.+x	Communication forms and techniques (written, oral, electronic, etc.)
01.30.-y	Physics literature and publications
01.30.Bb	Publications of lectures (advanced institutes, summer schools, etc.)
01.30.Cc	Conference proceedings
01.30.Ee	Monographs and collections
01.30.Kj	Handbooks, dictionaries, tables, and data compilations
01.30.Mm	Textbooks for graduates and researchers
01.30.Pp	Textbooks for undergraduates
01.30.Rr	Surveys and tutorial papers; resource letters
01.30.Tt	Bibliographies
01.30.Vv	Book reviews
01.30.Xx	Publications in electronic media
01.40.-d	Education
01.40.Di	Educational course design and evaluation
01.40.Ej	Science in elementary and secondary schools
01.40.Fk	Physics education research including cognition, problem solving, etc
01.40.Gm	Curricula; teaching methods, strategies, theory of testing, evaluation
01.40.Jp	Teacher training
01.50.-i	Educational aids
01.50.Fr	Audio and visual aids, and films for education
01.50.Ht	Instructional computer use for education
01.50.Kw	Techniques of testing for education
01.50.Lc	Laboratory computer use for education
01.50.My	Demonstration experiments and apparatus for education
01.50.Pa	Laboratory experiments and apparatus for education
01.50.Qb	Laboratory course design, organization, and evaluation
01.50.Wg	Physics of toys
01.52.+r	National and international laboratory facilities
01.55.+b	General physics
01.60.+q	Biographies, tributes, personal notes, and obituaries
01.65.+g	History of science
01.70.+w	Philosophy of science
01.75.+m	Science and society
01.78.+p	Science and government including funding, politics, etc
01.80.+b	Physics of sports
01.90.+g	Other topics of general interest in physics (restricted to new topics in section 01)
02.	Mathematical methods in physics
02.10.-v	Logic, set theory, and algebra
02.10.Ab	Logic and set theory
02.10.De	Algebraic structures and number theory
02.10.Hh	Rings and algebras
02.10.Kn	Knot theory
02.10.Ox	Combinatorics; graph theory
02.10.Ud	Linear algebra
02.10.Xm	Multilinear algebra
02.10.Yn	Matrix theory
02.20.-a	Group theory
02.20.Bb	General structures of groups
02.20.Hj	Classical groups
02.20.Qs	General properties, structure, and representation of Lie groups
02.20.Rt	Discrete subgroups of Lie groups
02.20.Sv	Lie algebras of Lie groups
02.20.Tw	Infinite-dimensional Lie groups
02.20.Uw	Quantum groups
02.30.-f	Function theory, analysis
02.30.Cj	Measure and integration
02.30.Em	Potential theory
02.30.Fn	Several complex variables and analytic spaces
02.30.Gp	Special functions
02.30.Hq	Ordinary differential equations
02.30.Ik	Integrable systems
02.30.Jr	Partial differential equations
02.30.Ks	Delay and functional equations
02.30.Lt	Sequences, series, and summability
02.30.Mv	Approximations and expansions
02.30.Nw	Fourier analysis
02.30.Oz	Bifurcation theory
02.30.Px	Abstract harmonic analysis
02.30.Rz	Integral equations
02.30.Sa	Functional analysis
02.30.Tb	Operator theory
02.30.Uu	Integral transforms
02.30.Vv	Operational calculus
02.30.Xx	Calculus of variations
02.30.Yy	Control theory
02.30.Zz	Inverse problems
02.40.-k	Geometry, differential geometry, and topology
02.40.Dr	Euclidean and projective geometries
02.40.Ft	Convex sets and geometric inequalities
02.40.Gh	Noncommutative geometry
02.40.Hw	Classical differential geometry
02.40.Ky	Riemannian geometries
02.40.Ma	Global differential geometry
02.40.Pc	General topology
02.40.Re	Algebraic topology
02.40.Sf	Manifolds and cell complexes
02.40.Tt	Complex manifolds
02.40.Vh	Global analysis and analysis on manifolds
02.40.Xx	Singularity theory
02.40.Yy	Geometric mechanics
02.50.-r	Probability theory, stochastic processes, and statistics
02.50.Cw	Probability theory
02.50.Ey	Stochastic processes
02.50.Fz	Stochastic analysis
02.50.Ga	Markov processes
02.50.Le	Decision theory and game theory
02.50.Ng	Distribution theory and Monte Carlo studies
02.50.Sk	Multivariate analysis
02.50.Tt	Inference methods
02.60.-x	Numerical approximation and analysis
02.60.Cb	Numerical simulation; solution of equations
02.60.Dc	Numerical linear algebra
02.60.Ed	Interpolation; curve fitting
02.60.Gf	Algorithms for functional approximation
02.60.Jh	Numerical differentiation and integration
02.60.Lj	Ordinary and partial differential equations; boundary value problems
02.60.Nm	Integral and integrodifferential equations
02.60.Pn	Numerical optimization
02.70.-c	Computational techniques
02.70.Bf	Finite-difference methods
02.70.Dh	Finite-element and Galerkin methods
02.70.Hm	Spectral methods
02.70.Jn	Collocation methods
02.70.Ns	Molecular dynamics and particle methods
02.70.Pt	Boundary-integral methods
02.70.Rr	General statistical methods
02.70.Ss	Quantum Monte Carlo methods
02.70.Tt	Justifications or modifications of Monte Carlo methods
02.70.Uu	Applications of Monte Carlo methods
02.70.Wz	Symbolic computation (computer algebra)
02.90.+p	Other topics in mathematical methods in physics (restricted to new topics in section 02)
03.	Quantum mechanics, field theories, and special relativity
03.30.+p	Special relativity
03.50.-z	Classical field theories
03.50.De	Classical electromagnetism, Maxwell equations
03.50.Kk	Other special classical field theories
03.65.-w	Quantum mechanics
03.65.Ca	Formalism in quantum mechanics
03.65.Db	Functional analytical methods in quantum mechanics
03.65.Fd	Algebraic methods in quantum mechanics
03.65.Ge	Solutions of wave equations: bound states in quantum mechanics
03.65.Nk	Scattering theory in quantum mechanics
03.65.Pm	Relativistic wave equations in quantum mechanics
03.65.Sq	Semiclassical theories and applications in quantum mechanics
03.65.Ta	Foundations of quantum mechanics; measurement theory
03.65.Ud	Entanglement and quantum nonlocality (e.g. EPR paradox, Bell's inequalities, GHZ states, etc.)
03.65.Vf	Phases: geometric; dynamic or topological (quantum theory)
03.65.Wj	State reconstruction, quantum tomography
03.65.Xp	Tunneling, traversal time, quantum Zeno dynamics
03.65.Yz	Decoherence; open systems; quantum statistical methods
03.67.-a	Quantum information
03.67.Dd	Quantum cryptography
03.67.Hk	Quantum communication
03.67.Lx	Quantum computation
03.67.Mn	Quantum entanglement production, characterization, and manipulation
03.67.Pp	Quantum error correction and other methods for protection against decoherence
03.70.+k	Theory of quantized fields
03.75.-b	Matter waves
03.75.Be	Atom and neutron optics
03.75.Dg	Atom and neutron interferometry
03.75.Gg	Quantum entanglement and decoherence in Bose-Einstein condensates
03.75.Hh	Static properties of Bose-Einstein condensates; thermodynamical, statistical and structural properties
03.75.Kk	Dynamic properties of Bose-Einstein condensates; collective and hydrodynamic excitations, superfluid flow
03.75.Lm	Josephson effect, tunneling, Bose-Einstein condensates in periodic potentials, solitons, vortices and topological excitations
03.75.Mn	Multicomponent Bose-Einstein condensates; spinor condensates
03.75.Nt	Other Bose-Einstein condensation phenomena
03.75.Pp	Atom lasers
03.75.Ss	Degenerate Fermi gases
04.	General relativity and gravitation
04.20.-q	Classical general relativity
04.20.Cv	Fundamental problems and general formalism in general relativity
04.20.Dw	Singularities and cosmic censorship in general relativity
04.20.Ex	Initial value problem, existence and uniqueness of solutions in general relativity
04.20.Fy	Canonical formalism, Lagrangians, and variational principles in general relativity
04.20.Gz	Spacetime topology, causal structure, spinor structure in general relativity
04.20.Ha	Asymptotic structure in general relativity
04.20.Jb	Exact solutions in general relativity
04.25.-g	Approximation methods; equations of motion in relativity/gravitation
04.25.Dm	Numerical relativity
04.25.Nx	Post-Newtonian approximation; perturbation theory; related approximations
04.30.-w	Gravitational waves: theory
04.30.Db	Gravitational wave generation and sources
04.30.Nk	Gravitational wave propagation and interactions
04.40.-b	Self-gravitating systems; continuous media and classical fields in curved spacetime
04.40.Dg	Relativistic stars: structure, stability, and oscillations
04.40.Nr	Einstein-Maxwell spacetimes, spacetimes with fluids, radiation or classical fields
04.50.+h	Gravity in more than four dimensions, Kaluza-Klein theory, unified field theories; alternative theories of gravity
04.60.-m	Quantum gravity
04.60.Ds	Canonical quantization (gravitation)
04.60.Gw	Covariant and sum-over-histories quantization (gravitation)
04.60.Kz	Lower dimensional and minisuperspace models in quantum gravity
04.60.Nc	Lattice and discrete methods in quantum gravity
04.60.Pp	Loop quantum gravity, quantum geometry, spin foams
04.62.+v	Quantum field theory in curved spacetime
04.65.+e	Supergravity
04.70.-s	Physics of black holes
04.70.Bw	Classical black holes
04.70.Dy	Quantum aspects of black holes, evaporation, thermodynamics
04.80.-y	Experimental studies of gravity
04.80.Cc	Experimental tests of gravitational theories
04.80.Nn	Gravitational wave detectors and experiments
04.90.+e	Other topics in general relativity and gravitation (restricted to new topics in section 04)
05.	Statistical physics, thermodynamics, and nonlinear dynamical systems
05.10.-a	Computational methods in statistical physics and nonlinear dynamics
05.10.Cc	Renormalization group methods (statistical physics/nonlinear dynamics)
05.10.Gg	Stochastic analysis methods (statistical physics/nonlinear dynamics) including Fokker-Planck, Langevin methods, etc.
05.10.Ln	Monte Carlo methods (statistical physics/nonlinear dynamics)
05.20.-y	Classical statistical mechanics
05.20.Dd	Kinetic theory in classical statistical mechanics
05.20.Gg	Classical ensemble theory
05.20.Jj	Statistical mechanics of classical fluids
05.30.-d	Quantum statistical mechanics
05.30.Ch	Quantum ensemble theory
05.30.Fk	Fermion systems and electron gas (quantum statistical mechanics)
05.30.Jp	Boson systems (quantum statistical mechanics)
05.30.Pr	Fractional statistics systems including anyons, etc
05.40.-a	Fluctuation phenomena, random processes, noise, and Brownian motion
05.40.Ca	Noise (statistical physics)
05.40.Fb	Random walks and Levy flights
05.40.Jc	Brownian motion
05.45.-a	Nonlinear dynamics and nonlinear dynamical systems
05.45.Ac	Low-dimensional chaos
05.45.Df	Fractals
05.45.Gg	Control of chaos, applications of chaos
05.45.Jn	High-dimensional chaos
05.45.Mt	Semiclassical methods in quantum chaos
05.45.Pq	Numerical simulations of chaotic models
05.45.Ra	Coupled map lattices (nonlinear dynamical systems)
05.45.Tp	Time series analysis (nonlinear dynamical systems)
05.45.Vx	Communication using chaos
05.45.Xt	Synchronization; coupled oscillators (nonlinear dynamical systems)
05.45.Yv	Solitons
05.50.+q	Lattice theory and statistics including Ising, Potts models, etc
05.60.-k	Transport processes
05.60.Cd	Classical transport
05.60.Gg	Quantum transport
05.65.+b	Self-organized systems
05.70.-a	Thermodynamics
05.70.Ce	Thermodynamic functions and equations of state
05.70.Fh	Phase transitions: general studies
05.70.Jk	Critical point phenomena in thermodynamics
05.70.Ln	Nonequilibrium and irreversible thermodynamics
05.70.Np	Interface and surface thermodynamics
05.90.+m	Other topics in statistical physics, thermodynamics, and nonlinear dynamical systems (restricted to new topics in section 05)
06.	Metrology, measurements, and laboratory procedures
06.20.-f	Metrology
06.20.Dk	Measurement and error theory
06.20.Fn	Measurement units and standards
06.20.Jr	Determination of fundamental constants
06.30.-k	Measurements common to several branches of physics and astronomy
06.30.Bp	Spatial dimensions measurement e.g., position, lengths, volume, angles and displacements
06.30.Dr	Mass and density measurement
06.30.Ft	Time and frequency measurement
06.30.Gv	Velocity, acceleration, and rotation measurement
06.60.-c	Laboratory procedures
06.60.Ei	Sample preparation including design of sample holders
06.60.Jn	High-speed laboratory techniques (microsecond to femtosecond)
06.60.Mr	Testing and inspecting procedures
06.60.Sx	Positioning and alignment; manipulating, remote handling
06.60.Vz	Workshop procedures (welding, machining, lubrication, bearings, etc.)
06.60.Wa	Laboratory safety procedures
06.90.+v	Other topics in metrology, measurements, and laboratory procedures (restricted to new topics in section 06)
07.	Instruments, apparatus and components common to several branches of physics and astronomy
07.05.-t	Computers in experimental physics
07.05.Bx	Computer systems in physics including hardware, operating systems, computer languages, and utilities
07.05.Dz	Control systems in physics
07.05.Fb	Design of experiments (physics)
07.05.Hd	Data acquisition: hardware and software (physics)
07.05.Kf	Physics data analysis and management including algorithms and implementation
07.05.Mh	Neural networks, fuzzy logic, artificial intelligence in physics
07.05.Pj	Image processing in experimental physics
07.05.Rm	Physics data presentation and visualization including algorithms and implementation
07.05.Tp	Computer modeling and simulation in physics
07.05.Wr	Computer interfaces in physics
07.07.-a	General measurement equipment
07.07.Df	Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing
07.07.Hj	Display and recording equipment, oscilloscopes, TV cameras, etc.
07.07.Mp	Transducers excluding acoustic transducers
07.07.Tw	Servo and control equipment; robots
07.07.Vx	Hygrometers
07.10.-h	Mechanical instruments and equipment
07.10.Cm	Micromechanical devices and systems
07.10.Fq	Vibration isolation (mechanical instruments)
07.10.Lw	Balance systems, tensile machines, etc.
07.10.Pz	Instruments for strain, force, and torque
07.20.-n	Thermal instruments and apparatus
07.20.Dt	Thermometers
07.20.Fw	Calorimeters
07.20.Hy	Furnaces; heaters (thermal instruments)
07.20.Ka	High-temperature instrumentation; pyrometers
07.20.Mc	Cryogenics, refrigerators; low-temperature equipment
07.20.Pe	Heat engines; heat pumps; heat pipes (thermal instruments)
07.30.-t	Vacuum apparatus
07.30.Bx	Degasification, residual gas
07.30.Cy	Vacuum pumps
07.30.Dz	Vacuum gauges
07.30.Hd	Vacuum testing methods; leak detectors
07.30.Kf	Vacuum chambers, auxiliary apparatus, and materials
07.35.+k	High-pressure apparatus; shock tubes; diamond anvil cells
07.50.-e	Electrical and electronic instruments and components
07.50.Ek	Electrical circuits and circuit components (electrical instruments)
07.50.Hp	Electrical noise and shielding equipment
07.50.Ls	Electrometers
07.50.Qx	Signal processing electronics (instruments)
07.55.-w	Magnetic instruments and components
07.55.Db	Generation of magnetic fields; magnets
07.55.Ge	Magnetometers for magnetic field measurements
07.55.Jg	Magnetometers for susceptibility, magnetic moment, and magnetization measurements
07.55.Nk	Magnetic shielding in instruments
07.57.-c	Infrared, submillimeter wave, microwave and radiowave instruments and equipment
07.57.Hm	Infrared, submillimeter wave, microwave, and radiowave sources
07.57.Kp	Bolometers; infrared, submillimeter wave, microwave, and radiowave receivers and detectors
07.57.Pt	Submillimeter wave, microwave and radiowave spectrometers including magnetic resonance spectrometers, auxiliary equipment, and techniques
07.57.Ty	Infrared spectrometers, auxiliary equipment, and techniques
07.60.-j	Optical instruments and equipment
07.60.Dq	Photometers, radiometers, and colorimeters
07.60.Fs	Optical polarimeters and ellipsometers
07.60.Hv	Optical refractometers and reflectometers
07.60.Ly	Optical interferometers
07.60.Pb	Conventional optical microscopes
07.60.Rd	Visible and ultraviolet spectrometers
07.60.Vg	Fiber-optic instruments
07.64.+z	Acoustic instruments and equipment
07.68.+m	Photography, photographic instruments; xerography
07.75.+h	Mass spectrometers
07.77.-n	Atomic, molecular, and charged-particle sources and detectors
07.77.Gx	Atomic and molecular beam sources and detectors
07.77.Ka	Charged-particle beam sources and detectors
07.78.+s	Electron, positron, and ion microscopes; electron diffractometers
07.79.-v	Scanning probe microscopes and components
07.79.Cz	Scanning tunneling microscopes
07.79.Fc	Near-field scanning optical microscopes
07.79.Lh	Atomic force microscopes
07.79.Pk	Magnetic force microscopes
07.79.Sp	Friction force microscopes
07.81.+a	Electron and ion spectrometers
07.85.-m	X- and -ray instruments
07.85.Fv	X- and -ray sources, mirrors, gratings, and detectors
07.85.Jy	X-ray and -ray diffractometers
07.85.Nc	X-ray and -ray spectrometers
07.85.Qe	Synchrotron radiation instrumentation
07.85.Tt	X-ray microscopes
07.87.+v	Spaceborne and space research instruments, apparatus, and components (satellites, space vehicles, etc.)
07.88.+y	Instruments for environmental pollution measurements
07.89.+b	Environmental effects on instruments e.g., radiation and pollution effects
07.90.+c	Other topics in instruments, apparatus, and components common to several branches of physics and astronomy (restricted to new topics in section 07)