684 citations · 1.9k across the 37 of their papers we have counts for
37 papers
Time-reparameterisation invariant quantum evolution law: the lack of absolute time does not imply a stationary global state
Ognyan Oreshkov, Denis Bouvy
We challenge the common belief that if there is no absolute time parameter in physics, a quantum system described without reference to an external clock can be assumed to be in a s…
Parity erasure: a foundational principle for indefinite causal order
Zixuan Liu, Ognyan Oreshkov
Processes with indefinite causal order can arise when quantum theory is locally valid and they allow accomplishing new informational tasks. Despite recent progress, the correlation…
Proceedings of the 22nd International Conference on Quantum Physics and Logic
Alejandro Díaz-Caro, Ognyan Oreshkov, Ana Belén Sainz
This volume contains the proceedings of the 22nd International Conference on Quantum Physics and Logic (QPL 2025), which was held from 14th to 18th July 2025, in Varna, Bulgaria, o…
Subsystem decompositions of quantum evolutions and transformations between causal perspectives
Julian Wechs, Ognyan Oreshkov
One can theoretically conceive of processes where the causal order between quantum operations is no longer well-defined. Certain such causally indefinite processes have an operatio…
Generalizing Bell nonlocality without global causal assumptions
Ravi Kunjwal, Ognyan Oreshkov
Bell scenarios are multipartite scenarios that exclude any communication between parties. This constraint leads to a strict hierarchy of correlation sets in such scenarios, namely,…
Nonclassicality in correlations without causal order
Ravi Kunjwal, Ognyan Oreshkov
Bell scenarios are multipartite scenarios that exclude any signalling between parties. This leads to a strict hierarchy of classical, quantum, and non-signalling correlations in su…