Brendel, Wieland and Bruckmann, Falk and Janssen, Lukas and Wipf, Andreas and Wozar, Christian (2009) Instanton constituents and fermionic zero modes in twisted CPn models. PHYSICS LETTERS B, 676 (1-3). pp. 116-125. ISSN 0370-2693,
Full text not available from this repository. (Request a copy)Abstract
We construct twisted instanton solutions of CPn models. Generically a charge-k instanton splits into k(n + 1) well-separated and almost static constituents carrying fractional topological charges and being ordered along the noncompact direction. The locations, sizes and charges of the constituents are related to the moduli parameters of the instantons. We sketch how solutions with fractional total charge can be obtained. We also calculate the fermionic zero modes with quasi-periodic boundary conditions in the background of twisted instantons for minimally and supersymmetrically coupled fermions. The zero modes are tracers for the constituents and show a characteristic hopping. The analytical findings are compared to results extracted from Monte Carlo generated and cooled configurations of the corresponding lattice models. Analytical and numerical results are in full agreement and it is demonstrated that the fermionic zero modes are excellent filters for constituents hidden in fluctuating lattice configurations. (C) 2009 Elsevier B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | NONLINEAR SIGMA-MODELS; TOPOLOGICAL CHARGE; CHIRAL-SYMMETRY; LATTICE; TEMPERATURE; MONOPOLES; NUMBER; QUARKS; SCALE; Cooling; Instanton; Overlap operator; Supersymmetry; Topology; Zero mode |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Sep 2020 09:27 |
| Last Modified: | 14 Sep 2020 09:27 |
| URI: | https://pred.uni-regensburg.de/id/eprint/28927 |
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