Optimisation of Thimble simulations and quantum dynamics of multiple fields in real time

Woodward, Simon; Saffin, Paul M.; Mou, Zong Gang; Tranberg, Anders

Abstract

We apply the Generalised Thimble approach to the computation of exact path integrals and correlators in real-time quantum field theory. We first investigate the details of the numerical implementation and ways of optimizing the algorithm. We subsequently apply the method to an interacting two-field system in 0+1 dimensions, illustrating the scope for addressing realistic physical processes using real-time Generalised Thimble computations.

Citation

Woodward, S., Saffin, P. M., Mou, Z. G., & Tranberg, A. (2022). Optimisation of Thimble simulations and quantum dynamics of multiple fields in real time. Journal of High Energy Physics, 2022(10), Article 82. https://doi.org/10.1007/JHEP10%282022%29082

• Journal Article Type: Article
• Acceptance Date: Oct 3, 2022
• Online Publication Date: Oct 12, 2022
• Publication Date: Oct 1, 2022
• Deposit Date: Oct 14, 2022
• Publicly Available Date: Oct 14, 2022
• Journal: Journal of High Energy Physics
• Electronic ISSN: 1029-8479
• Publisher: Springer Science and Business Media LLC
• Peer Reviewed: Peer Reviewed
• Volume: 2022
• Issue: 10
• Article Number: 82
• DOI: https://doi.org/10.1007/JHEP10%282022%29082
• Keywords: Regular Article - Theoretical Physics, Lattice Quantum Field Theory, Nonperturbative Effects
• Public URL: https://nottingham-repository.worktribe.com/output/12327666
• Publisher URL: https://link.springer.com/article/10.1007/JHEP10(2022)082