Dimensional regularisation in the presence of large background fields |
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| Authors: | M Lüscher |
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| Affiliation: | Institut für Theoretische Physik, Universität Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland |
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| Abstract: | The method of dimensional regularisation is introduced and discussed in detail for the case of quantum field theories with large (i.e., not infinitesimal) classical background fields. Examples considered are the φ4-theory on four-dimensional compact curved spaces as well as Yang-Mills gauge theories on S4 with an arbitrary multi-instanton background field. |
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