Work

Arbitrarily negative energy for small Kaluza-Klein bubbles

Year: 2025

Type: article

Abstract: We show that the energy of a Kaluza-Klein bubble of nothing is unbounded from below even if the size of the circle at infinity and the size of the minimal sphere at the bubble are fixed. We demonstrate this by presenting a family of explicit time-symmetric initial data satisfying these boundary conditions with arbitrarily negative energy. In particular, this is true for very small bubbles, indicating that the standard Kaluza-Klein vacuum is more unstable than previously thought.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/xmm8-7kv6

Authors: Gary T. Horowitz, Guanyu (Ricky) Lu

Institution: University of California, Santa Barbara

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funder: National Science Foundation

Award: Research in Classical and Quantum Gravity