[Todos] Anuncio Seminario del IFLP/Dto Fisica - martes 4 de abril 11hs

[Maria Virginia Manias]

Estimados,

Les agradezco la difusión del anuncio del próximo seminario del Ciclo de
Coloquios y Seminarios que se organizan el Instituto de Física La Plata
y el Departamento de Física.

Se adjunta el archivo para difundir en carteleras.

Saludos cordiales,
Virginia Manías
Secretaria Científica del IFLP

*SEMINARIOS  DEL IFLP y DEL DEPARTAMENTO*

*MARTES 4 de ABRIL – 11 hs*

*AULA CHICA*


*TÍTULO**: **"* *Non selfadjoint Hamiltonians: quantum mechanics and far
beyond"*


*EXPOSITOR: Ignat Fialkovskiy  *

*Universidade Federal do ABC, Santo André *


*Resumen:* We will discuss the use of non-hermitian Hamiltonians in a
variety of physical problems from quantum mechanics to waves propagation.
An asymptotic approach will be developed for construction of adiabatic
solutions,  and also for treating eigenvalues degeneracy. In the latter
case two regimes of mode transformation are identified: avoided crossing of
eigenvalues, corresponding to complex degeneracy points, and the explicit
unavoidable crossing (with real degeneracy points). Both cases are treated
by method of matched asymptotic expansions in the context of a unifying
approach, applicable to a wide range of physical problems.
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