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anticommutator
This term is used exclusively within the highly specialized registers of quantum mechanics and abstract algebra. It describes a specific algebraic operation that differs from a commutator by using addition instead of subtraction, which is a critical distinction when dealing with fermions in physics.
Because it refers to a specific mathematical object or operator, it is treated as a standard countable noun. It is almost never used outside of technical academic papers or textbooks focusing on operator theory or particle physics.
Ý nghĩa
In mathematics and quantum mechanics, an operator or element formed by the sum of two products of elements in reverse order, typically defined as the operation {A, B} = AB + BA.
The anticommutator of two fermionic operators is used to define the canonical anticommutation relations.