230 citations · 1.2k across the 49 of their papers we have counts for
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gr-qc2021★ 3 cited
Recovering General Relativity from a Planck scale discrete theory of quantum gravity
Fay Dowker, Jeremy Butterfield
An argument is presented that if a theory of quantum gravity is physically discrete at the Planck scale and the theory recovers General Relativity as an approximation, then, at the…
gr-qc2001
The End of Time?
J. N. Butterfield
I discuss J. Barbour's Machian theories of dynamics, and his proposal that a Machian perspective enables one to solve the problem of time in quantum geometrodynamics (by saying tha…
gr-qc1999★ 63 cited
Some Possible Roles for Topos Theory in Quantum Theory and Quantum Gravity
C. J. Isham, J. Butterfield
We discuss some ways in which topos theory (a branch of category theory) can be applied to interpretative problems in quantum theory and quantum gravity. In Section 1, we introduce…