Arrow of Causality and Quantum Gravity.
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DOI: 10.1103/physrevlett.123.171601
Abstract: Causality in quantum field theory is defined by the vanishing of field commutators for spacelike separations. However, this does not imply a direction for causal effects. Hidden in our conventions for quantization is a connection… read more here.
Keywords: theory; causality; arrow causality; causality quantum ... See more keywords