Seiberg--Witten Monopoles in Three Dimensions |
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Authors: | CAREY A L WANG B L ZHANG R B MCCARTHY J |
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Institution: | (1) Department of Pure Mathematics, (Department of Physics and Mathematical Physics), University of Adelaide, Adelaide, 5005, Australia |
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Abstract: | Dimensional reduction of the Seiberg--Witten equations leads to the equations of motion of a U(1) Chern--Simons theory coupled to a massless spinorial field. A topological quantum field theory is constructed for the moduli space of gauge equivalence classes of solutions of these equations. The Euler characteristic of the moduli space is obtained as the partition function which yields an analogue of Casson's invariant.A mathematically rigorous definition of the invariant isdeveloped for homology spheres using the theory of spectral flow ofself-adjoint Fredholm operators. |
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Keywords: | Seiberg--Witten monopoles Casson invariants topological Lagrangians |
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