2018/06/06 by Ding Jia, Jia, Ding · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Noncommutative and Quantum Gravity Theories #gr-qc #hep-th #quant-ph
paper · pdf · doi:10.48550/arxiv.1806.02331
5 pages, no figure
arxiv created 2018/06/06 · arxiv updated 2018/06/07
We show that quantum indefinite causal structure generically reduce two-party correlations. For significant indefiniteness in the causal structure captured by some general conditions, the correlation is shown to be reduced down to zero. The result offers an operational model-independent ultraviolet regularization mechanism. It may be applied to various approaches of quantum gravity that allow quantum indefinite spacetime causal structure.