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--- start [2019/12/08 19:37]
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+++ start [2023/11/20 10:57]
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-<box w=99% nodash|**JOB OPENINGS : Two postdoctoral positions on quantum causal structures** >
+<box w=99% nodash|**JOB OPENING : Postdoctoral position in quantum foundations and information** >
-Applications are invited for [[https://www.quantiki.org/position/two-postdoctoral-positions-quantum-causal-structures-ulb|two postdoctoral positions]] on the subject of quantum causal structures. The postdoctoral researchers will work with Dr. Ognyan Oreshkov within the framework of the project “Quantum Physics and Information with Indefinite Causal Structure” funded by the ARC Consolidation scheme of the Wallonia-Brussels Federation. The aim of the project is to investigate the link between causal structure and quantum theory from a foundational perspective, with specific emphasis on the concept of quantum indefinite causal structures, their information processing power, physical realizability, and potential role in fundamental physics.
+Applications are invited for a postdoctoral position in quantum foundations and quantum information. The researcher will work with Dr. Ognyan Oreshkov on topics ranging from entanglement to causal structures and quantum reference frames. The position is for up to two years, finishing at the end of 2025. For application instructions, see [[https://www.quantiki.org/position/postdoctoral-position-quantum-foundations-and-information-ulb|announcement]].
-Applications should be sent to [[oreshkov@ulb.ac.be|Dr. Ognyan Oreshkov]].
+Please direct informal enquiries to [[ognyan.oreshkov@ulb.be|Dr. Ognyan Oreshkov]].
+</box>
+<box w=99% nodash|**Time-delocalised variables violating causal inequalities** (Nature Communications, March 2023)>
+<box left w=125px noborder> {{:time-delocalised.jpg?130|}}
+</box>
+<box right w=80% noborder>
+Julian Wechs and Ognyan Oreshkov from QuIC and Cyril Branciard from the French National Centre for Scientific Research have shown for the first time that an exotic type of process violating causal inequalities can be realised with known physics. A violation of a causal inequality proves under theory-independent assumptions that certain variables in an experiment cannot be assigned a definite causal order. This phenomenon has been known to be possible in theory but widely believed impossible in practice, at least in the known regimes of physics. The new study, published in [[https://www.nature.com/articles/s41467-023-36893-3|Nature Communications]], shows that such processes can be realised in standard quantum mechanics using variables delocalised in time. The finding may have far-reaching implications for our understanding of causality in physics.
+\\
+See [[https://actus.ulb.be/fr/presse/communiques-de-presse/recherche/des-variables-delocalisees-dans-le-temps-allant-a-lencontre-des-inegalites-causales|press release]].
+</box>
 </box>
-[[http://example.com|External Link]]
 <box w=99% nodash|**Ognyan Oreshkov** joins QuIC as a permanent F.R.S.-FNRS researcher!>