Multiconfigurational quantum propagation with trajectory-guided generalized coherent states

Journal Article · Mon Mar 07 00:00:00 EST 2016 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.4942926· OSTI ID:22660875

Grigolo, Adriano

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.

• OSTI ID: 22660875
• Journal Information: Journal of Chemical Physics, Vol. 144, Issue 9; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANNIHILATION OPERATORS
DEGREES OF FREEDOM
EIGENSTATES
INTERACTING BOSON MODEL
LIE GROUPS
PHYSICAL PROPERTIES
QUANTUM STATES