2001
DOI: 10.1016/s0370-2693(01)00821-8
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Geometric construction of new Yang–Mills instantons over Taub-NUT space

Abstract: In this paper we exhibit a one-parameter family of new Taub-NUT instantons parameterized by a half-line. The endpoint of the half-line will be the reducible Yang-Mills instanton corresponding to the Eguchi-Hanson-Gibbons L 2 harmonic 2-form, while at an inner point we recover the Pope-Yuille instanton constructed as a projection of the LeviCivitá connection onto the positive su(2) + ⊂ so(4) subalgebra. Our method imitates the Jackiw-Nohl-Rebbi construction originally designed for flat R 4 . That is we find a o… Show more

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Cited by 17 publications
(38 citation statements)
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“…There was a number of attempts at construction of instantons on the Taub-NUT space. Some isolated solutions were found in [16,17] and particular families of solutions appear in [18,19,20]. We claim that the construction presented here produces all solutions for generic boundary conditions.…”
Section: Introductionmentioning
confidence: 62%
“…There was a number of attempts at construction of instantons on the Taub-NUT space. Some isolated solutions were found in [16,17] and particular families of solutions appear in [18,19,20]. We claim that the construction presented here produces all solutions for generic boundary conditions.…”
Section: Introductionmentioning
confidence: 62%
“…Recently new families of SU(2) Yang-Mills instantons on multi-Taub-NUT spaces have been found, cf. [29], [30]. In particular, [30] contains an intrinsic construction of the L 2 harmonic forms Ω i defined above as the curvatures of reducible SU (2) Yang-Mills instantons.…”
Section: Corollary 9 Suppose γ ⊂ Su(2) Is a Finite Cyclic Or Dihedramentioning
confidence: 99%
“…This 2-form can be constructed as the exterior derivative of the metric dual of the Killing field generating an isometric action of U(1) on the 1-Taub-NUT space [10]. One can also obtain it by the conformal rescaling method when hunting for SU(2) anti-instantons [6]. Taking into account that H 2 (M V ; R) = {0} the condition dω = 0 is equivalent to the existence of an imaginary valued 1-form A such that dA = iω.…”
Section: Significance Of the Strong Holonomy Conditionmentioning
confidence: 99%