2026-06-07T19:59:24Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/1176192025-02-04T01:08:33Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense
author
Bally, B.
author
Sánchez-Fernández, A.
author
Rodríguez Frutos, Tomás Raúl
2025-02-03T09:55:54Z
2025-02-03T09:55:54Z
2021-02-23
Bally, B., Sánchez-Fernández, A. & Rodríguez, T.R. Symmetry-projected variational calculations with the numerical suite TAURUS. Eur. Phys. J. A 57, 69 (2021). https://doi.org/10.1140/epja/s10050-021-00369-z
10.1140/epja/s10050-021-00369-z
https://hdl.handle.net/20.500.14352/117619
https://dx.doi.org/10.1140/epja/s10050-021-00369-z
We present the numerical code TAURUS_vap that solves the variation after particle-number projection equations for real general Bogoliubov quasiparticle states represented in a spherical harmonic oscillator basis. The model space considered is invariant under spatial and isospin rotations but no specific set of orbits is assumed such that the code can carry out both valence-space and no-core calculations. In addition, no number parity is assumed for the Bogoliubov quasiparticle states such that the code can be used to describe even-even, odd-even and odd-odd nuclei. The variational procedure can be performed under several simultaneous constraints on the expectation values of a variety of operators such as the multipole deformations, the pairing field or the components of the angular momentum. To demonstrate the potential and versatility of the code, we perform several example calculations using an empirical shell-model interaction as well as a chiral interaction. The ability to perform advanced variational Bogoliubov calculations offered by this code will, we hope, be beneficial to the shell model and ab initio communities.
eng
Attribution-NonCommercial-NoDerivatives 4.0 International
Symmetry-projected variational calculations with the numerical suite TAURUS I. Variation after particle-number projection
journal article
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