Discrete generator coordinate: Symmetry restoration in finite-dimensional spaces

D. Galetti, B.M. Pimentel, C.L. Lima and M. Kyotoku

Physica A: Statistical Mechanics and its Applications, 1999, vol. 262, issue 3, 428-440

Abstract: Group theoretical-based techniques and fundamental results from number theory are used in order to allow for the construction of exact projectors in finite-dimensional spaces. These operators are shown to make use only of discrete variables, which play the role of discrete generator coordinates, and their application in the number symmetry restoration is carried out in a nuclear BCS wave function which explicitly violates that symmetry.

Keywords: Generator coordinate; BCS; Number projection; Group theory; Number theory (search for similar items in EconPapers)
Date: 1999
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:262:y:1999:i:3:p:428-440

DOI: 10.1016/S0378-4371(98)00418-X

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