218 citations · 236 across the 4 of their papers we have counts for
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gr-qc2008★ 10 cited
Formalism Locality in Quantum Theory and Quantum Gravity
Lucien Hardy
We expect a theory of Quantum Gravity to be both probabilistic and have indefinite causal structure. Indefinite causal structure poses particular problems for theory formulation si…
gr-qc2006★ 218 cited
Towards Quantum Gravity: A Framework for Probabilistic Theories with Non-Fixed Causal Structure
Lucien Hardy
General relativity is a deterministic theory with non-fixed causal structure. Quantum theory is a probabilistic theory with fixed causal structure. In this paper we build a framewo…