Gravitational collapse of quantum fields and Choptuik scaling

Berczi, Benjamin; Saffin, Paul M.; Zhou, Shuang-Yong

Abstract

Gravitational collapse into a black hole has been extensively studied with classical sources. We develop a new formalism to simulate quantum fields forming a black hole. By choosing a convenient coherent state, this formalism taps into well-established techniques used for classical collapse and adds on the evolution of the mode functions of the quantum field operator. Divergences are regularized with the cosmological constant and Pauli-Villars fields. Using a massless spherically symmetric scalar field as an example, we demonstrate the effectiveness of the formalism by reproducing some classical results in gravitational collapse, and identifying the difference due to the quantum effects. We also find that Choptuik scaling in critical collapse survives in the semiclassical simulation, and furthermore the quantum deviation from the classical Choptuik scaling decreases when the system approaches the critical point.

Citation

Berczi, B., Saffin, P. M., & Zhou, S. (2022). Gravitational collapse of quantum fields and Choptuik scaling. Journal of High Energy Physics, 2022(2), Article 183. https://doi.org/10.1007/jhep02%282022%29183

• Journal Article Type: Article
• Acceptance Date: Feb 9, 2022
• Online Publication Date: Feb 22, 2022
• Publication Date: 2022-02
• Deposit Date: Feb 10, 2022
• Publicly Available Date: Feb 10, 2022
• Journal: Journal of High Energy Physics
• Electronic ISSN: 1029-8479
• Publisher: Springer Verlag
• Peer Reviewed: Peer Reviewed
• Volume: 2022
• Issue: 2
• Article Number: 183
• DOI: https://doi.org/10.1007/jhep02%282022%29183
• Keywords: Nuclear and High Energy Physics
• Public URL: https://nottingham-repository.worktribe.com/output/7414792
• Publisher URL: https://link.springer.com/article/10.1007/JHEP02(2022)183