TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.12.1.015
TI  - Comment on Coleman-DeLuccia instantons
PY  - 2022/01/11
UR  - https://www.scipost.org/SciPostPhys.12.1.015
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 12
IS  - 1
SP  - 015
A1  - Banks, Thomas
AU  - Zhang, Bingnan
AB  - We complete an old argument that causal diamonds in the crunching region of the Lorentzian continuation of a Coleman-Deluccia instanton for transitions out of de Sitter space have finite area, and provide quantum models consistent with the principle of detailed balance, which can mimic the instanton transition probabilities for the cases where this diamond is larger or smaller than the causal patch of de Sitter space. We review arguments that potentials which do not have a positive energy theorem when the lowest de Sitter minimum is shifted to zero, may not correspond to real models of quantum gravity.
ER  -

@Article{10.21468/SciPostPhys.12.1.015,
	title={{Comment on Coleman-DeLuccia instantons}},
	author={Tom Banks and Bingnan Zhang},
	journal={SciPost Phys.},
	volume={12},
	pages={015},
	year={2022},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.12.1.015},
	url={https://scipost.org/10.21468/SciPostPhys.12.1.015},
}