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Cosa (chi) è propagator - definizione

FUNCTION IN QUANTUM FIELD THEORY SHOWING PROBABILITY AMPLITUDES OF MOVING PARTICLES

Heated propogator; Propagator (field theory); Feynman propagator; Cut propagator; Propagator (Quantum Theory); Causal Green's function; Retarded Green's function

Propagator

·noun One who propagates; one who continues or multiplies.

propagator

¦ noun

1. a covered, heated container of earth or compost, used for germinating seedlings.

2. a person who propagates an idea, knowledge, etc.

Propagator

In quantum mechanics and quantum field theory, the propagator is a function that specifies the probability amplitude for a particle to travel from one place to another in a given period of time, or to travel with a certain energy and momentum. In Feynman diagrams, which serve to calculate the rate of collisions in quantum field theory, virtual particles contribute their propagator to the rate of the scattering event described by the respective diagram.

https://en.wikipedia.org/wiki/Propagator

Wikipedia

Propagator

In quantum mechanics and quantum field theory, the propagator is a function that specifies the probability amplitude for a particle to travel from one place to another in a given period of time, or to travel with a certain energy and momentum. In Feynman diagrams, which serve to calculate the rate of collisions in quantum field theory, virtual particles contribute their propagator to the rate of the scattering event described by the respective diagram. These may also be viewed as the inverse of the wave operator appropriate to the particle, and are, therefore, often called (causal) Green's functions (called "causal" to distinguish it from the elliptic Laplacian Green's function).

https://en.wikipedia.org/wiki/Propagator

Esempi dal corpus di testo per propagator

1. As a result, they are surveying the movement of birds, main propagator, in detail. Ѓ@They are grasping closely the habitats of seasonal birds to take measures against any abnormal phenomena in time.

2. That flamboyant champion and propagator of nascent Norwegian culture, the violin virtuoso Ole Bull, swept Ibsen up, as was his wont when he sensed uncommon promise, and installed him as the director of the Norwegian Theatre in the relatively cosmopolitan city of Bergen.