81T99 None of the above, but in this section

81U05 $2$-body potential scattering theory [See also <a href="#code:34E20">34E20</a> for WKB methods]

81U10 $n$-body potential scattering theory

81U15 Exactly and quasi-solvable systems

81U30 Dispersion theory, dispersion relations

81U35 Inelastic and multichannel scattering

81U99 None of the above, but in this section

81Vxx Applications to specific physical systems

81V05 Strong interaction, including quantum chromodynamics

81V10 Electromagnetic interaction; quantum electrodynamics

81V17 Gravitational interaction [See also <a href="#code:83Cxx">83Cxx</a> and <a href="#code:83Exx">83Exx</a>]

81V55 Molecular physics [See also <a href="#code:92E10">92E10</a>]

81V65 Quantum dots [See also <a href="#code:82D20">82D20</a>]

81V70 Many-body theory; quantum Hall effect

81V99 None of the above, but in this section

82-XX Statistical mechanics, structure of matter

82-00 General reference works (handbooks, dictionaries, bibliographies, etc.)

82-01 Instructional exposition (textbooks, tutorial papers, etc.)

82-02 Research exposition (monographs, survey articles)

82-03 Historical (must also be assigned at least one classification number from Section 01)

82-04 Explicit machine computation and programs (not the theory of computation or programming)

82-06 Proceedings, conferences, collections, etc.

82B05 Classical equilibrium statistical mechanics (general)

82B10 Quantum equilibrium statistical mechanics (general)

82B20 Lattice systems (Ising, dimer, Potts, etc.) and systems on graphs

82B21 Continuum models (systems of particles, etc.)

82B23 Exactly solvable models; Bethe ansatz

82B24 Interface problems; diffusion-limited aggregation

82B28 Renormalization group methods [See also <a href="#code:81T17">81T17</a>]

82B30 Statistical thermodynamics [See also <a href="#code:80-XX">80-XX</a>]

82B35 Irreversible thermodynamics, including Onsager-Machlup theory [See also <a href="#code:92E20">92E20</a>]

82B41 Random walks, random surfaces, lattice animals, etc. [See also <a href="#code:60G50">60G50</a>, <a href="#code:82C41">82C41</a>]