An annihilation operator lowers the occupation number operator eigenvalue by one and annihilates the Fock vacuum.
Ancestors (6)
- Creation and annihilation operators
- Quantum harmonic oscillator
- Quantum mechanics
- Branches of physics
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Incoming links (108)
- Bogoliubov quasiparticle
- Bogoliubov theory
- Bogoliubov transformation
- Bosonic species-swap generator
- Canonical quantization of the electromagnetic field
- Canonical transformation of mode operators
- Canonical transverse photon field
- Coherent state after shifting an oscillator equilibrium
- Coherent-state photon statistics
- Covariant oscillator Hamiltonian of a real scalar field
- Field-squared quadrature
- Finite oscillator commutator boundary defect
- Fock space
- Fock vacuum
- Golden-rule relaxation of a spin coupled to an oscillator bath
- Harmonic-oscillator number-state second moments
- Holstein–Primakoff transformation
- Invariant-normalized scalar mode extraction
- Lamb-Dicke regime
- Linear optics
- Nambu spinor
- Normal-ordered product
- Optical quadrature
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- Photon subtraction
- Quantum depletion of a Bose condensate
- Quantum field
- Quantum theory of optical coherence
- Second quantization
- Translation of a scalar creation operator
- Two-mode fermionic paired vacuum
- Vacuum state
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