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Introduction to the Strings Theory and Black Holes Thermodynamics
| Full text | |
| Author(s): |
Total Authors: 2
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| Affiliation: | [1] Univ Estadual Campinas, Inst Fis Gleb Wataghin, Rua Sergio Buarque de Holanda 777, BR-13083859 Campinas, SP - Brazil
Total Affiliations: 1
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| Document type: | Journal article |
| Source: | Classical and Quantum Gravity; v. 38, n. 21 NOV 4 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
We discuss the strong CP problem in the context of quantum field theory in the presence of horizons. We argue that general covariance places constraints on the topological structure of the theory. In particular, it means that coherence between different topological sectors must have no observable consequence, because the degrees of freedom beyond a causal horizon must be traced over for general covariance to apply. Since the only way for this to occur in QCD is for theta = 0, this might lead to a solution of the strong CP problem without extra observable dynamics. (AU) | |
| FAPESP's process: | 17/05685-2 - Hadronic physics in high energy nuclear collisions |
| Grantee: | Jun Takahashi |
| Support Opportunities: | Special Projects |
| FAPESP's process: | 21/01700-2 - An effective field theory of relativistic local equilibrium |
| Grantee: | Donato Giorgio Torrieri |
| Support Opportunities: | Regular Research Grants |