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- Adiabatic_invariant abstract "An adiabatic invariant is a property of a physical system that stays constant when changes occur slowly.In thermodynamics, an adiabatic process is a change that occurs without heat flow, and slowly compared to the time to reach equilibrium. In an adiabatic process, the system is in equilibrium at all stages. Under these conditions, the entropy is constant.In mechanics, an adiabatic change is a slow deformation of the Hamiltonian, where the fractional rate of change of the energy is much slower than the orbital frequency. The area enclosed by the different motions in phase space are the adiabatic invariants.In quantum mechanics, an adiabatic change is one that occurs at a rate much slower than the difference in frequency between energy eigenstates. In this case, the energy states of the system do not make transitions, so that the quantum number is an adiabatic invariant.The old quantum theory was formulated by equating the quantum number of a system with its classical adiabatic invariant. This determined the form of the Bohr–Sommerfeld quantization rule: the quantum number is the area in phase space of the classical orbit.".
- Adiabatic_invariant wikiPageExternalLink node24.html.
- Adiabatic_invariant wikiPageExternalLink node25.html.
- Adiabatic_invariant wikiPageID "1440776".
- Adiabatic_invariant wikiPageRevisionID "603671284".
- Adiabatic_invariant hasPhotoCollection Adiabatic_invariant.
- Adiabatic_invariant subject Category:Classical_mechanics.
- Adiabatic_invariant subject Category:Physical_systems.
- Adiabatic_invariant subject Category:Plasma_physics.
- Adiabatic_invariant subject Category:Quantum_mechanics.
- Adiabatic_invariant subject Category:Thermodynamics.
- Adiabatic_invariant type Abstraction100002137.
- Adiabatic_invariant type Cognition100023271.
- Adiabatic_invariant type Concept105835747.
- Adiabatic_invariant type Content105809192.
- Adiabatic_invariant type FundamentalPhysicsConcepts.
- Adiabatic_invariant type Idea105833840.
- Adiabatic_invariant type PsychologicalFeature100023100.
- Adiabatic_invariant comment "An adiabatic invariant is a property of a physical system that stays constant when changes occur slowly.In thermodynamics, an adiabatic process is a change that occurs without heat flow, and slowly compared to the time to reach equilibrium. In an adiabatic process, the system is in equilibrium at all stages.".
- Adiabatic_invariant label "Adiabatic invariant".
- Adiabatic_invariant label "Адиабатический инвариант".
- Adiabatic_invariant label "断熱不変量".
- Adiabatic_invariant label "绝热不变量".
- Adiabatic_invariant sameAs 断熱不変量.
- Adiabatic_invariant sameAs m.051t11.
- Adiabatic_invariant sameAs Q2632009.
- Adiabatic_invariant sameAs Q2632009.
- Adiabatic_invariant sameAs Adiabatic_invariant.
- Adiabatic_invariant wasDerivedFrom Adiabatic_invariant?oldid=603671284.
- Adiabatic_invariant isPrimaryTopicOf Adiabatic_invariant.