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Fermionic annihilation operator
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Physics
Branches of physics
Quantum field theory
Relativistic quantum field
Dirac field
Mode expansion of a Dirac field
2026-10-03
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A
fermionic annihilation operator removes one
fermion
from
a
specified one-particle mode. Together with its
adjoint
it satisfies
a
canonical anticommutation relation such
as
{
b
r
,
b
s
†
}
=
δ
rs
.
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Mode expansion of a Dirac field
Dirac field
Relativistic quantum field
Quantum field theory
Branches of physics
Physics
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