Published January 2006
| Version v1
Journal article
On parametric resonance in quantum many-body system. Collective motion and quantum fluctuation around it in coupled lipkin model
- 1. Kochi Univ., Faculty of Science, Pysics Division, Kochi (Japan)
- 2. Departmento de Fisica, Universidade de Coimbra, Coimbra (Portugal)
- 3. Kansai Univ., Faculty of Engineering, Suita, Osaka (Japan)
Description
The dynamics governed by a requantized collective Hamiltonian in the coupled Lipkin model are investigated in the time-dependent variational approach with a squeezed state. It is pointed out that there is a possibility of the parametric resonance mechanisms which leads to amplifying the amplitude of quantum fluctuation around the collective mode in this model. (author)
Additional details
Publishing Information
- Journal Title
- Progress of Theoretical Physics (Kyoto)
- Journal Volume
- 115
- Journal Issue
- 1
- Journal Page Range
- p. 129-141
- ISSN
- 0033-068X
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 37041323
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- COLLECTIVE MODEL; FLUCTUATIONS; HARTREE-FOCK METHOD; MANY-BODY PROBLEM; NUCLEAR STRUCTURE; PHASE TRANSFORMATIONS; QUANTUM MECHANICS; SIGMA MODEL; SQUARE-WELL POTENTIAL; TIME DEPENDENCE; VARIATIONAL METHODS
- Descriptors DEC
- APPROXIMATIONS; BOSON-EXCHANGE MODELS; CALCULATION METHODS; MATHEMATICAL MODELS; MECHANICS; NUCLEAR MODELS; NUCLEAR POTENTIAL; PARTICLE MODELS; PERIPHERAL MODELS; POTENTIALS; VARIATIONS
Optional Information
- Notes
- 16 refs., 1 tab.