Rotation-Induced Breakdown of Torsional Quantum Control

Coudert, L.H. and Fernandez Pacios, Luis and Ortigoso, Juan (2011). Rotation-Induced Breakdown of Torsional Quantum Control. "Physical Review Letters", v. 107 (n. 11); pp.. ISSN 0031-9007. https://doi.org/10.1103/PhysRevLett.107.113004.

Description

Title: Rotation-Induced Breakdown of Torsional Quantum Control
Author/s:
  • Coudert, L.H.
  • Fernandez Pacios, Luis
  • Ortigoso, Juan
Item Type: Article
Título de Revista/Publicación: Physical Review Letters
Date: 2011
ISSN: 0031-9007
Volume: 107
Subjects:
Faculty: E.T.S.I. Montes (UPM)
Department: Biotecnologia [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Control of the torsional angles of nonrigid molecules is key for the development of emerging areas like molecular electronics and nanotechnology. Based on a rigorous calculation of the rotation-torsion-Stark energy levels of nonrigid biphenyl-like molecules, we show that, unlike previously believed, instantaneous rotation-torsion-Stark eigenstates of such molecules, interacting with a strong laser field, present a large degree of delocalization in the torsional coordinate even for the lowest energy states. This is due to a strong coupling between overall rotation and torsion leading to a breakdown of the torsional alignment. Thus, adiabatic control of changes on the planarity of this kind of molecule is essentially impossible unless the temperature is on the order of a few Kelvin.

More information

Item ID: 11219
DC Identifier: http://oa.upm.es/11219/
OAI Identifier: oai:oa.upm.es:11219
DOI: 10.1103/PhysRevLett.107.113004
Official URL: http://link.aps.org/doi/10.1103/PhysRevLett.107.113004
Deposited by: Memoria Investigacion
Deposited on: 09 Jul 2012 08:17
Last Modified: 20 Apr 2016 19:22
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