Ultrashort laser pulses in metal surfaces: Origin of spurious fluctuations in fully quantal calculations

We use fully quantal methods to solve the time-dependent Schrodinger equation for collision problems. In our particular example, we studied the interaction of ultrashort laser pulses with metal surfaces. We obtained big fluctuations in the photoionization cross sections, and analyzed the possible or...

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Detalles Bibliográficos
Publicado: 2009
Materias:
Eigenvalues and eigenfunctions
Laser pulses
Nonlinear equations
Photoionization
Schrodinger equation
Basis sets
Collision problem
Fully-quantal
Metal surfaces
Numerical grids
Photoionization cross section
Time dependent Schrodinger equation
Ultrashort pulses
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17426588_v194_n3_p_Mitnik
http://hdl.handle.net/20.500.12110/paper_17426588_v194_n3_p_Mitnik
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_17426588_v194_n3_p_Mitnik
record_format dspace
spelling paper:paper_17426588_v194_n3_p_Mitnik2025-07-30T19:02:52Z Ultrashort laser pulses in metal surfaces: Origin of spurious fluctuations in fully quantal calculations Eigenvalues and eigenfunctions Laser pulses Nonlinear equations Photoionization Schrodinger equation Basis sets Collision problem Fully-quantal Metal surfaces Numerical grids Photoionization cross section Time dependent Schrodinger equation Ultrashort pulses We use fully quantal methods to solve the time-dependent Schrodinger equation for collision problems. In our particular example, we studied the interaction of ultrashort laser pulses with metal surfaces. We obtained big fluctuations in the photoionization cross sections, and analyzed the possible origin of them. After ruling out the numerical grid effects, we found a way to eliminate the fluctuations, by choosing an appropriate basis set for the continuum eigenfunctions. © 2009 IOP Publishing Ltd. 2009 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17426588_v194_n3_p_Mitnik http://hdl.handle.net/20.500.12110/paper_17426588_v194_n3_p_Mitnik
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Eigenvalues and eigenfunctions
Laser pulses
Nonlinear equations
Photoionization
Schrodinger equation
Basis sets
Collision problem
Fully-quantal
Metal surfaces
Numerical grids
Photoionization cross section
Time dependent Schrodinger equation
Ultrashort pulses
spellingShingle Eigenvalues and eigenfunctions
Laser pulses
Nonlinear equations
Photoionization
Schrodinger equation
Basis sets
Collision problem
Fully-quantal
Metal surfaces
Numerical grids
Photoionization cross section
Time dependent Schrodinger equation
Ultrashort pulses
Ultrashort laser pulses in metal surfaces: Origin of spurious fluctuations in fully quantal calculations
topic_facet Eigenvalues and eigenfunctions
Laser pulses
Nonlinear equations
Photoionization
Schrodinger equation
Basis sets
Collision problem
Fully-quantal
Metal surfaces
Numerical grids
Photoionization cross section
Time dependent Schrodinger equation
Ultrashort pulses
description We use fully quantal methods to solve the time-dependent Schrodinger equation for collision problems. In our particular example, we studied the interaction of ultrashort laser pulses with metal surfaces. We obtained big fluctuations in the photoionization cross sections, and analyzed the possible origin of them. After ruling out the numerical grid effects, we found a way to eliminate the fluctuations, by choosing an appropriate basis set for the continuum eigenfunctions. © 2009 IOP Publishing Ltd.
title Ultrashort laser pulses in metal surfaces: Origin of spurious fluctuations in fully quantal calculations
title_short Ultrashort laser pulses in metal surfaces: Origin of spurious fluctuations in fully quantal calculations
title_full Ultrashort laser pulses in metal surfaces: Origin of spurious fluctuations in fully quantal calculations
title_fullStr Ultrashort laser pulses in metal surfaces: Origin of spurious fluctuations in fully quantal calculations
title_full_unstemmed Ultrashort laser pulses in metal surfaces: Origin of spurious fluctuations in fully quantal calculations
title_sort ultrashort laser pulses in metal surfaces: origin of spurious fluctuations in fully quantal calculations
publishDate 2009
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17426588_v194_n3_p_Mitnik
http://hdl.handle.net/20.500.12110/paper_17426588_v194_n3_p_Mitnik
_version_ 1840327827096862720

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