@article{1fe427d1c66348039bc153163b34bed6,
title = "Testing Higher Derivative Gravity through Tunnelling",
abstract = "Higher derivative terms in the gravitational action are natural from the perspective of quantum gravity, but are perceived as leading to a lack of well-posedness. The Gauss–Bonnet term has second-order equations of motion, but does not impact gravitational dynamics in 4D, so one might expect that it is not physically relevant. We discuss how signatures can show up in tunnelling processes and whether these will likely be physically accessible in Higgs vacuum decay.",
keywords = "black holes, instanton, tunnelling",
author = "Ruth Gregory and Hu, {Shi Qian}",
note = "Funding Information: This work was supported in part by the STFC Consolidated grant ST/P000371/1 and the STFC Quantum Technology grant ST/005858/1 (RG), the Chinese Scholarship Council and King{\textquoteright}s College London (SH), the Aspen Center for Physics, supported by National Science Foundation grant PHY-2210452 (RG), and the Perimeter Institute for Theoretical Physics (RG). Research at Perimeter Institute is supported by the Government of Canada through the Department of Innovation, Science and Economic Development Canada and by the Province of Ontario through the Ministry of Colleges and Universities. Publisher Copyright: {\textcopyright} 2024 by the authors.",
year = "2024",
month = feb,
day = "16",
doi = "10.3390/particles7010008",
language = "English",
volume = "7",
pages = "144--160",
journal = "Particles",
issn = "2571-712X",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "1",
}