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Excited state

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Summary

A state with energy above the ground state of the specified Hamiltonian; it may be stationary, metastable, resonant, or unstable.

Record metadata

Concept sources

Incoming relations (arrows to this concept)

Each relation below ends at this concept.

AtomExcited state

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This is an authored directed relation from the source endpoint to the target endpoint.

Authored explanation

Atoms possess excited bound, metastable, resonant, and continuum states above the ground state.

How to interpret this relation type

The target represents a state, property, observable, or state-dependent description associated with the source system or theory.

Relation sources

PhotochemistryExcited state

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This is an authored directed relation from the source endpoint to the target endpoint.

Authored explanation

Photochemistry describes electronically excited molecular states prepared by photon absorption and their competing relaxation, energy-transfer, charge-transfer, and reaction pathways.

How to interpret this relation type

A theory, law, or interaction describes the behavior of the target within a stated regime. The edge detail must state important limits or qualifications.

Relation sources

Quantum stateExcited state

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This is an authored directed relation from the source endpoint to the target endpoint.

Authored explanation

An excited state is a quantum state above the ground-state energy of the specified system.

How to interpret this relation type

The target is a member or subtype of the broader source class.

Relation sources

Outgoing relations (arrows from this concept)

Each relation below starts at this concept.

Excited stateSpontaneous emission

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This is an authored directed relation from the source endpoint to the target endpoint.

Authored explanation

An excited atomic state with an allowed radiative channel may decay by spontaneous emission; metastability and nonradiative channels depend on selection rules and environment.

How to interpret this relation type

A physical process transforms the source into, or produces, the target under the conditions stated in the edge detail.

Relation sources