Data di Pubblicazione:
2013
Citazione:
A time dependent multi-determinant approach to nuclear dynamics / G. Puddu. - In: INTERNATIONAL JOURNAL OF MODERN PHYSICS E. - ISSN 0218-3013. - 22:6(2013 Jul), pp. 1350040.1-1350040.23.
Abstract:
We propose a Time-Dependent Multi-Determinant approach to the description of the time evolution of the nuclear wave functions (TDMD). We use the Dirac variational principle to derive the equations of motion using as ansatz for
the nuclear wave function a linear combination of Slater determinants.
We prove explicitly that the norm and the energy of the wave function are conserved during the time evolution. This approach is a generalization of the time-dependent Hartree-Fock method to many Slater determinants.
We apply this approach to a case study of ${}^6Li$ using the N3LO interaction renormalized to $4$ major harmonic oscillator shells. We solve the TDMD equations of motion using Krylov subspace methods of Lanczos type.
As an application, we discuss the isoscalar monopole strength function.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Ab initio methods; Quantum dynamics; Strongly correlated fermionic systems; Time-dependent variational principle
Elenco autori:
G. Puddu
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