Optimal control of quantum systems on metallic surfaces

T. Szakács, T. Lucza, A. Lőrincz

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Optimal control of quantum processes on a metallic surface is studied. The subject of this control are transitions between states of the quantum system. The objective of optimization is to squeeze the ground-state wavefunction with help of the higher electronic level. The quantum system is modelled within the Born-Oppenheimer approximation with effective potentials of displaced harmonic oscillators. The means of control is a time-dependent pulsed electric field. Pulse durations considered were about as long as a vibrational period but the envelope of the pulse could vary on a shorter time scale. Metallic reflection was treated within the so-called hydrodynamic approximation. Results show that within the hydrodynamic approximation and far from the plasma frequency the optimal field on the surface has a very similar shape to, but with different amplitude than, the optimal field of the vacuum.

Original languageEnglish
Pages (from-to)251-260
Number of pages10
JournalSurface Science
Volume296
Issue number2
DOIs
Publication statusPublished - Oct 20 1993

Fingerprint

optimal control
hydrodynamics
Born-Oppenheimer approximation
electronic levels
plasma frequencies
Hydrodynamics
approximation
harmonic oscillators
Born approximation
pulse duration
envelopes
Wave functions
Ground state
vacuum
optimization
ground state
electric fields
pulses
Electric fields
Vacuum

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces

Cite this

Optimal control of quantum systems on metallic surfaces. / Szakács, T.; Lucza, T.; Lőrincz, A.

In: Surface Science, Vol. 296, No. 2, 20.10.1993, p. 251-260.

Research output: Contribution to journalArticle

Szakács, T. ; Lucza, T. ; Lőrincz, A. / Optimal control of quantum systems on metallic surfaces. In: Surface Science. 1993 ; Vol. 296, No. 2. pp. 251-260.
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