We consider a simple model of a cloud chamber consisting of a test particle (the alpha-particle) interacting with two quantum systems (the atoms of the vapor) initially confined around a(1), a(2). is an element of R(3). At time zero, the alpha-particle is described by an outgoing spherical wave centered in the origin and the atoms are in their ground state. We show that, under suitable assumptions on the physical parameters of the system and up to second order in perturbation theory, the probability that both atoms are ionized is negligible unless a(2) lies on the line joining the origin with a(1). The work is a fully time-dependent version of the original analysis proposed by Mott in 1929.
A time dependent perturbative analysis for a quantum particle in a cloud chamber / Dell'Antonio, Gianfausto; R., Figari; Teta, Alessandro. - In: ANNALES HENRI POINCARE'. - ISSN 1424-0637. - STAMPA. - 11:3(2010), pp. 539-564. [10.1007/s00023-010-0037-4]
A time dependent perturbative analysis for a quantum particle in a cloud chamber
DELL'ANTONIO, Gianfausto;TETA, Alessandro
2010
Abstract
We consider a simple model of a cloud chamber consisting of a test particle (the alpha-particle) interacting with two quantum systems (the atoms of the vapor) initially confined around a(1), a(2). is an element of R(3). At time zero, the alpha-particle is described by an outgoing spherical wave centered in the origin and the atoms are in their ground state. We show that, under suitable assumptions on the physical parameters of the system and up to second order in perturbation theory, the probability that both atoms are ionized is negligible unless a(2) lies on the line joining the origin with a(1). The work is a fully time-dependent version of the original analysis proposed by Mott in 1929.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
