Field theories on $\rho$-deformed Minkowski space-time
| Autor: | Hersent, Kilian, Wallet, Jean-Christophe |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | JHEP 07 (2023) 031 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1007/JHEP07(2023)031 |
| Popis: | We study one-loop perturbative properties of scalar field theories on the $\rho$-Minkowski space. The corresponding star-product, together with the involution are characterized from a combination of Weyl quantization and defining properties of the convolution algebra of the Euclidean group linked to the coordinate algebra of the $\rho$-Minkowski space. The natural integration measure linked to the Haar measure of the Euclidean group defines a trace for the star-product. One-loop properties of the 2-point and 4-point functions for families of complex-valued scalar field theories on $\rho$-Minkowski space are examined. For scalar theories with orientable interaction, the 2-point function is found to receive UV quadratically diverging one-loop corrections in 4 dimensions while no IR singularities generating UV/IR mixing appears. These however occur in the one-loop corrections to the 4-point function. As well, one-loop 2-point functions for theories with non-orientable interaction involve such IR singularities. These results are discussed. Comment: 19 pages |
| Databáze: | arXiv |
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