commutator

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Related to Anticommutator: Commutation relation

com·mu·ta·tor

 (kŏm′yə-tā′tər)
n.
1. A cylindrical arrangement of insulated metal bars connected to the coils of a direct-current electric motor or generator, providing a unidirectional current from the generator or a reversal of current into the coils of the motor.
2. Mathematics In a commutative or noncommutative group, an element of the form ghg-1h-1 where g and h are elements of the group. If g and h commute, the commutator is the identity element.

commutator

(ˈkɒmjʊˌteɪtə)
n
1. (Electronics) a device used to reverse the direction of flow of an electric current
2. (Electrical Engineering) the segmented metal cylinder or disc mounted on the armature shaft of an electric motor, generator, etc, used to make electrical contact with the rotating coils and ensure unidirectional current flow

com•mu•ta•tor

(ˈkɒm yəˌteɪ tər)

n.
1.
a. a device for reversing the direction of a current.
b. (in a DC motor or generator) a ring or disk assembly that works to change the frequency or direction of current in the armature windings.
2. Math. the element equal to the product of two given elements in a group multiplied on the right by the product of the inverses of the elements.
[1830–40]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.commutator - switch for reversing the direction of an electric currentcommutator - switch for reversing the direction of an electric current
electric switch, electrical switch, switch - control consisting of a mechanical or electrical or electronic device for making or breaking or changing the connections in a circuit
References in periodicals archive ?
One then finds that the transformation of the matter field [PHI] gives a 'field strength' contribution from the anticommutator of the two factors Q + [PSI], which is cancelled against the variation of the Chern-Simons term.
They state that the product of uncertainties of two (symmetric or normal) operators in a Hilbert space is bounded from below by the expectation values of their commutator (the "classical" UP) and their anticommutator.
A Jordan C*-subalgebra of a C*-algebra, endowed with the anticommutator product, is called a JC*-algebra.