Abstract
A gauge invariant notion of a strong connection is presented and characterized. It is then used to justify the way in which a global curvature form is defined. Strong connections are interpreted as those that are induced from the base space of a quantum bundle. Examples of both strong and non-strong connections are provided. In particular, such connections are constructed on a quantum deformation of the two-sphere fibrationS 2→RP 2. A certain class of strongU q (2)-connections on a trivial quantum principal bundle is shown to be equivalent to the class of connections on a free module that are compatible with theq-dependent hermitian metric. A particular form of the Yang-Mills action on a trivialU q (2)-bundle is investigated. It is proved to coincide with the Yang-Mills action constructed by A. Connes and M. Rieffel. Furthermore, it is shown that the moduli space of critical points of this action functional is independent ofq.
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References
Abe, E.: Hopf Algebras. Cambridge: Cambridge University Press 1980
Aref'eva, I.Ya., Arutyunov, G.E.: Uniqueness ofU q (N) as a quantum gauge group and representations of its differential algebra.hep-th/9305176
Aref'eva, I.Ya., Volovich, I.V.: Quantum group gauge fields. Mod. Phys. Lett. A6 (10), 893–907 (1991).
Booss, B., Bleecker, D.D.: Topology and Analysis. The Atiyah-Singer Formula and Gauge-Theoretic Physics. Berlin-Heidelberg-New York: Springer-Verlag, 1985
Bourbaki, N.: Algèbre Homologique. Paris: Masson, 1980
Brzeziński, T.: Differential Geometry of Quantum Groups and Quantum Fibre Bundles. Ph.D. thesis, Cambridge University, 1994
Brzeziński, T.: Translation Map in Quantum Principal Bundles. To appear in J. Geom. Phys.hep-th/9407145
Brzeziński, T., Majid, S.: Quantum Group Gauge Theory on Classical Spaces. Phys. Lett. B298, 339–43 (1993)hep-th/9210024
Brzeziński, T., Majid, S.: Quantum Group Gauge Theory on Quantum Spaces. Commun. Math. Phys.157, 591–638 (1993)hep-th/9208007; Erratum, Commun. Math. Phys.167, 235 (1995)
Budzyński, R.J., Kondracki, W.: Quantum Principal Fiber Bundles: Topological Aspects.hep-th/9401019
Connes, A.: The Action Functional in Non-Commutative Geometry. Commun. Math. Phys.117, 673–83 (1988)
Connes, A.: Non-Commutative Geometry. New York-London: Academic Press, 1994
Connes, A., Rieffel, M.: Yang-Mills for Non-Commutative Two-Tori. Contemp. Math.62, 237–66 (1987)
Coquereaux, R.: Noncommutative Geometry and Theoretical Physics. J. Geom. Phys.6, (3) 425–90 (1989)
Doebner, H.D., Hennig, J.D., Lücke, W.: Mathematical Guide to Quantum Groups. In: Doebner, H.D., Hennig, J.D. (eds.) Quantum Groups. Proceedings of the 8th International Workshop on Mathematical Physics, Clausthal, West Germany, 19–26 July 1989, Berlin-Heidelberg-New York. Springer-Verlag 1990, pp. 29–63
Dubois-Violette, M.: Dérivations et calcul différentiel non commutatif. C.R. Acad. Sci. Paris307 (Série I), 403–8 (1988)
Dubois-Violette, M., Kerner, R., Madore, J.: Noncommutative differential geometry of matrix algebras. J. Math. Phys.31 (2), 316–22 (1990)
Dubois-Violette, M., Kerner, R., Madore, J.: Noncommutative differential geometry and new models of gauge theory. J. Math. Phys.31 (2), 323–30 (1990)
Durdevic, M.: Geometry of Quantum Principal Bundles I. Commun. Math. Phys.175 (3), 457–521 (1996)q-alg/9507019
Durdevic, M.: Geometry of Quantum Principal Bundles II (Extended Version).q-alg/9412005
Durdevic, M.: Quantum Principal Bundles and Corresponding Gauge Theories.q-alg/9507021
Durdevic, M.: Quantum Principal Bundles. In: Proceedings of the XXII International Conference on Differential Geometric Methods in Theoretical Physics. Ixtapa, Mexico 1993.hep-th/9311029
Durdevic, M.: On Framed Quantum Principal Bundles.q-alg/9507020
Fadeev, L.D., Reshetikhin, N.Yu., Takhtadzhyan, L.A.: Quantization of Lie Groups and Lie Algebras. Leningrad Math. J.1 (1), 193–225 (1990)
Hazewinkel, M.: Formal Groups and Applications. New York-London: Academic Press, 1978
Majid, S.: Introduction to Braided Geometry andq-Minkowski space. In: Castellani, L., Wess, J. (eds.) Proceedings of the International School of Physics “Enrico Fermi” CXXVII. IOS Press 1996hep-th/9410241
Manin, Yu.I.: Quantum Groups and Noncommutative Geometry. Publications du CRM 1561, Univ. de Montreal, 1988
Pflaum, M.J.: Quantum Groups on Fibre Bundles. Commun. Math. Phys.166 (2), 279–315 (1994)hep-th/9401085
Podleś, P.: Quantum Spheres. Lett. Math. Phys.14, 521–31 (1987)
Rieffel, M.: Critical Points of Yang-Mills for Noncommutative Two-Tori. J. Differential Geom.31, 535–46 (1990)
Schneider, H.J.: Principal Homogenous Spaces for Arbitrary Hopf Algebras. Isr. J. Math.72 (1–2), 167–95 (1990)
Schneider, H.J.: Hopf Galois Extensions, Crossed Products, and Clifford Theory. In: Bergen, J., Montgomery, S. (eds.), Advances in Hopf Algebras. Lecture Notes in Pure and Applied Mathematics.158, New York: Marcel Dekker, Inc. 1994
Shnider, S., Sternberg, S.: Quantum Groups. International Press Inc., 1993
Spera, M.: A Symplectic Approach to Yang-Mills Theory for Non Commutative Tori. Can. J. Math.44 (2), 368–87 (1992)
Sweedler, M.E.: Hopf Algebras. New York: Benjamin, 1969
Takhtadzhyan, L.A.: Lectures on Quantum Groups. In: Introduction to Quantum Groups and Integrable Massive Models of Quantum Field Theory. Singapore: World Scientific, 1990, pp 69–197
Trautman, A.: Differential Geometry for Physicists. Paris: Bibliopolis, 1984
Woronowicz, S.L.: Compact Matrix Pseudogroups. Commun. Math. Phys.111, 613–65 (1987)
Woronowicz, S.L.: Differential Calculus on Compact Matrix Pseudogroups (Quantum Groups). Commun. Math. Phys.122, 125–70 (1989)
Wu, K., Zhang, R.-J.: Algebraic approach to gauge theory and its noncommutative extension. Commun. Theor. Phys.17 (2), 175–82 (1992)
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Communicated by A. Connes
This work was in part supported by the NSF grant 1-443964-21858-2. Writing up the revised version was partially supported by the KBN grant 2 P301 020 07 and by a visiting fellowship at the International Centre for Theoretical Physics in Trieste.
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Hajac, P.M. Strong connections on quantum principal bundles. Commun.Math. Phys. 182, 579–617 (1996). https://doi.org/10.1007/BF02506418
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DOI: https://doi.org/10.1007/BF02506418