Multiconfigurational quantum propagation with trajectory-guided generalized coherent states

Author(s)

Grigolo, Adriano ^[1] ; Viscondi, Thiago F. ^[2] ; de Aguiar, Marcus A. M. ^[1]

Affiliation

^[1] Univ Estadual Campinas, Inst Fis Gleb Wataghin, 777 Sergio Buarque Holanda, BR-13083859 Campinas, SP - Brazil

^[2] Univ Sao Paulo, Inst Fis, 1371 Rua Matao, BR-05508090 Sao Paulo - Brazil

• Document type: Journal article
• Source: Journal of Chemical Physics; v. 144, n. 9 MAR 7 2016.
• Web of Science Citations: 5

Abstract

A generalized version of the coupled coherent states method for coherent states of arbitrary Lie groups is developed. In contrast to the original formulation, which is restricted to frozen-Gaussian basis sets, the extended method is suitable for propagating quantum states of systems featuring diversified physical properties, such as spin degrees of freedom or particle indistinguishability. The approach is illustrated with simple models for interacting bosons trapped in double- and triple-well potentials, most adequately described in terms of SU(2) and SU(3) bosonic coherent states, respectively. (C) 2016 AIP Publishing LLC. (AU)

• FAPESP's process: 12/20452-0 - Development of a Hamiltonian Formulation for the Anomalous Particle Transport in Confined Plasmas
• Grantee: Thiago de Freitas Viscondi
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 11/20065-4 - Semiclassical dynamics of multidimensional systems and initial value representations
• Grantee: Adriano Grigolo
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 14/04036-2 - Spatially distributed population dynamics and speciation processes
• Grantee: Marcus Aloizio Martinez de Aguiar
• Support Opportunities: Regular Research Grants
• FAPESP's process: 08/09491-9 - Semiclassical limit of finite quantum systems
• Grantee: Thiago de Freitas Viscondi
• Support Opportunities: Scholarships in Brazil - Doctorate