81XX 


Quantum theory 

81Pxx 

Axiomatics, foundations, philosophy 


81P05 
General and philosophical 


81P10 
Logical foundations of quantum mechanics; quantum logic [See also 03G12, 06C15] 


81P15 
Quantum measurement theory 


81P20 
Stochastic mechanics (including stochastic electrodynamics) 


81P68 
Quantum computation and quantum cryptography [See also 68Q05, 94A60] 


81P99 
None of the above, but in this section 