3 papers
quant-ph2026
Simulating Noncausality with Quantum Control of Causal Orders
Anna Steffinlongo, Hippolyte Dourdent
Logical consistency with free local operations is compatible with non-trivial classical communications, where all parties can be both in each other's past and future-a phenomenon k…
quant-ph2025
Paradox-free classical non-causality and unambiguous non-locality without entanglement are equivalent
Hippolyte Dourdent, Kyrylo Simonov, Andreas Leitherer +5
Closed timelike curves (CTCs) challenge our conception of causality by allowing information to loop back into its own past. Any consistent description of such scenarios must avoid…
quant-ph2024
Network-Device-Independent Certification of Causal Nonseparability
Hippolyte Dourdent, Alastair A. Abbott, Ivan Å upiÄ +1
Causal nonseparability is the property underlying quantum processes incompatible with a definite causal order. So far it has remained a central open question as to whether any proc…