Solution of the time dependent Schrodinger equation leading to FowlerNordheim field emission
Ovidiu Costin, Rodica Costin, Ian Jauslin, Joel L. Lebowitz
2018
Abstract
We solve the timedependent Schrodinger equation describing the emission of electrons from a metal surface by an external electric field \(E\), turned on at \(t=0\). Starting with a wave function \(\psi(x,0)\), representing a generalized eigenfunction when \(E=0\), we find \(\psi(x,t)\) and show that it approaches, as \(t\to\infty\), the FowlerNordheim tunneling wavefunction \(\psi_E\). The deviation of \(\psi\) from \(\psi_E\) decays asymptotically as a power law \(t^{\frac32}\). The time scales involved for typical metals and fields of several V/nm are of the order of femtoseconds. We plot the shorttime evolution of the current and density.
Download
PDF:
LaTeX source:
 tarball: 18ccjl1.1.tar.gz
 git repository: 18ccjlgit (the git repository contains detailed information about the changes in the paper as well as the source code for all previous versions).
Other releases
 arXiv preprint: arXiv:1808.00936.
 peer reviewed version, published in Journal of Applied Physics, volume 124, number 213104.
Related articles

[CCJL19]: Exact solution of the 1D timedependent Schrodinger equation for the emission of quasifree electrons from a flat metal surface by a laser
Ovidiu Costin, Rodica Costin, Ian Jauslin, Joel L. Lebowitz, 2019
(published in Journal of Physics A: Mathematical and Theoretical, volume 53, issue 36, number 365201)
pdf, source
Talks
This work has been presented at the following conferences:

[HF19]: Timeevolution of electron emission from a metal surface
Mathematical Physics at the Crossings, VirginiaTech, Virginia, USA, May 24 2019
pdf 
[MSU19]: Timeevolution of electron emission from a metal surface
Michigan State University, East Lansing, Michigan, USA, May 02 2019
pdf 
[GT19]: Field electron emission and the FowlerNordheim equation
GeorgiaTech, Atlanta, Georgia, USA, Feb 22 2019
pdf 
[Pr18b]: Field electron emission and the FowlerNordheim equation
Princeton University, New Jersey, USA, Nov 13 2018
pdf 
[Rut18]: Solution of timedependent Schrodinger equation for field emission
Rutgers University, New Jersey, USA, Sep 27 2018
pdf