[Todos] RECORDATORIO PRÓXIMO SEMINARIO DEL IFLP-DTO DE FÍSICA

[manias@fisica.unlp.edu.ar manias]

*SEMINARIO  DEL IFLP y DEL DEPARTAMENTO*

Martes 6 de agosto 11:00hs – AULA CHICA

*TÍTULO:* "Analytical approach to the problems of classical and quantum
damped oscillators"**

 *EXPOSITOR*: Swapan Mandal

Department of Physics, Visva-Bharati,* *Santiniketan-731235, India

* *

*RESUMEN*: It is established that a special case of the oscillator with
time dependent parameters leads to the problem of damped oscillator. The
exact analytical solutions of a generalized classical harmonic oscillator
with time dependent mass, frequency, two-photon parameter and external
forces are obtained. By using the invariance property of the scaled
Wronskian, these solutions are used to obtain the solutions of the quantum
mechanical counterpart of the oscillator under Heisenberg picture. In order
to discuss the applications of these solutions of the quantum mechanical
oscillator, we calculate the exact analytical expressions for the second
order variances of the canonically conjugate quadratures. It is found that
these variances do not depend on the time dependent driven terms. We
discuss a few situations of physical interest where the mass is varying in
time.

* *

Lugar: Aula Chica del Departamento de Física de la Facultad de Ciencias
Exactas; calle 49 y 115

Contacto: manias en fisica.unlp.edu.ar

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