Artículo
Abstract:
A time-dependent variational procedure is proposed that possesses the same constants of the motion as the exact many-body Schrödinger dynamics. The class of trial wave functions is larger than the manifold of Slater determinants that supports the time-dependent Hartree-Fock dynamics. These wave functions can be regarded as superpositions of the eigenfunctions of the conserved observable of interest and the variational equations display the usual parametric structure, with properly admixed energy gradients and the symplectic metric tensor. In an application to the Lipkin-Meshkov-Glick model, significant improvements over the usual mean-field or determinantal dynamics can be achieved. NUCLEAR STRUCTURE Mean field symmetry breaking; symmetry restoration; nondeterminantal wave function; time-dependent variational principle; parametric equations of motion; mean energy metric tensor; canonical coordinates; quasispin models; comparison with time-dependent Hartree-Fock dynamics. © 1983 The American Physical Society.
Registro:
| Documento: | Artículo |
| Título: | Symmetry-conserving variational dynamics: Application to quasispin systems |
| Autor: | Solari, H.G.; Hernandez, E.S. |
| Filiación: | Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina |
| Año: | 1983 |
| Volumen: | 28 |
| Número: | 6 |
| Página de inicio: | 2472 |
| Página de fin: | 2479 |
| DOI: | http://dx.doi.org/10.1103/PhysRevC.28.2472 |
| Título revista: | Physical Review C |
| ISSN: | 05562813 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562813_v28_n6_p2472_Solari |
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Citas:
---------- APA ----------
Solari, H.G. & Hernandez, E.S. (1983) . Symmetry-conserving variational dynamics: Application to quasispin systems. Physical Review C, 28(6), 2472-2479.http://dx.doi.org/10.1103/PhysRevC.28.2472
---------- CHICAGO ----------
Solari, H.G., Hernandez, E.S. "Symmetry-conserving variational dynamics: Application to quasispin systems" . Physical Review C 28, no. 6 (1983) : 2472-2479.http://dx.doi.org/10.1103/PhysRevC.28.2472
---------- MLA ----------
Solari, H.G., Hernandez, E.S. "Symmetry-conserving variational dynamics: Application to quasispin systems" . Physical Review C, vol. 28, no. 6, 1983, pp. 2472-2479.http://dx.doi.org/10.1103/PhysRevC.28.2472
---------- VANCOUVER ----------
Solari, H.G., Hernandez, E.S. Symmetry-conserving variational dynamics: Application to quasispin systems. 1983;28(6):2472-2479.http://dx.doi.org/10.1103/PhysRevC.28.2472
