Vibrational modes as an external environment in molecular dynamics

• Grant number: 12/11271-2
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: November 01, 2012
• End date: July 31, 2016
• Field of knowledge: Physical Sciences and Mathematics - Physics - General Physics
• Principal Investigator: Marcus Aloizio Martinez de Aguiar
• Grantee: Kellen Manoela Siqueira
• Host Institution: Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

We will to study the dynamics of small molecules moving under the action of external potentials, possibly chaotic. The work will focus on the energy transfer between collective degrees of freedom (like the motion of the center of mass or rotations around it) and vibrational degrees. The external potential couples the motion of the center of mass with the internal degrees of freedom. If the latter is sufficiently large they may act as an external reservoir to the former, similar to what seems to happen in the C60 molecule, where this type of interaction leads to a significant reduction in the interference observed in double slit experiments. We will investigate under what conditions this effect occurs in the classical formalism and also study the dynamics of the systems in the semiclassical regime. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SIQUEIRA, KELLEN MANOELA; MARTINEZ DE AGUIAR, MARCUS ALOIZIO. Suppression of Fermi acceleration in composite particles. PHYSICA D-NONLINEAR PHENOMENA, v. 331, p. 81-88, SEP 15 2016. (14/04036-2, 12/11271-2)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

SIQUEIRA, Kellen Manoela. Modos vibracionais como ambiente externo na dinâmica de moléculas. 2017. Doctoral Thesis - Universidade Estadual de Campinas (UNICAMP). Instituto de Física Gleb Wataghin Campinas, SP.