time reversal

noun

, Physics.

1. the mathematical operation of reversing the direction of time. : T

time reversal

1. A mathematical operation on the description of a physical system in which the signs of variables representing time are reversed.
2. Also called time conjugation
3. See more at invariance

Word History and Origins

Origin of time reversal¹

First recorded in 1920–25

Example Sentences

Whether that’s possible depends on subtle details and is a subject of active research, which I studied recently as the time reversal of a collapse to a black hole, with Paul Chesler, a postdoctoral fellow at Harvard’s Black Hole Initiative.

From Scientific American

In an antiferromagnet, the flipping of spins associated with time reversal changes the pattern of alternating spins.

From Nature

Fu, L. & Kane, C. L. Time reversal polarization and a Z2 adiabatic spin pump.

From Nature

Whereas time reversal would flip the direction of another property of the electron, its magnetic spin, it would leave any EDM unaffected, changing the relationship between the two.

From Science Magazine

Whereas time reversal would flip the direction of another property of the electron, its magnetic spin, it would leave any EDM unaffected, changing the relationship between the two.

From Science Magazine