https://doi.org/10.1140/epjc/s10052-022-10375-0
Letter
Why even source-free gravity must be quantized
1
Walter Burke Institute for Theoretical Physics, California Institute of Technology, 91125, Pasadena, CA, USA
2
Physics Department, Brandeis University, 02454, Waltham, MA, USA
Received:
20
April
2022
Accepted:
29
April
2022
Published online:
10
May
2022
I note, on the most elementary grounds: its classical ultraviolet catastrophe, that even source-free General Relativity must be quantized, despite some eminent opinions to the contrary and with a little fine print.
© The Author(s) 2022
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