Mittwoch, 04. Dezember 2019, 18:00 - 20:00 iCal
Ehrenfest award ceremony for Quantum Foundations
Award ceremony for the most significant paper in foundations of quantum physics, followed by a talk
Lise-Meitner-Hörsaal an der Fakultät für Physik
Boltzmanngasse 5 / Strudlhofgasse 4, 1090 Wien
Vortrag
Physicists of all fields and physics students are invited to join the Ehrenfest award ceremony on the 4th of December, followed by a talk by the authors and refreshments. The winner of the Paul Ehrenfest Best Paper Award for Quantum Foundations for the year 2018 is:
Almost Quantum Correlations
By Miguel Navascués, Yelena Guryanova, Matty J. Hoban, and Antonio Acín
Nature Communications 6, 6288 (2015).
The committee awarded the prize to Navascues et al. "for the theoretical discovery of a natural set of stronger-than-quantum correlations, which challenges correlations-based approaches to characterizing quantum theory and hints at potential beyond-quantum physics." The authors will collect the award and give a talk about the awarded work, followed by drinks and a small buffet. Researchers from all fields of physics and physics students are encouraged to attend!
Abstract:
Almost quantum correlations
Bell’s theorem teaches us that two or more parties conducting space-like
separated quantum experiments can generate correlations which do not
admit any classical interpretation. Such correlations are termed
non-local. Since the dimension of the local Hilbert spaces held by each
party is, in principle, unbounded, characterizing the set of non-local
quantum correlations is an arduous task. In this regard, there have been
a number of attempts to derive the shape of the set of quantum non-local
correlations from physical principles alone. Such principles are
understood to be device-independent, i.e., falsifiable via Bell-type
experiments.
In this talk, I will argue against this research program. I will do so
by introducing the almost quantum set, a set of multipartite
correlations that has appeared under different names in fields as
diverse as graph theory, quantum gravity and quantum information
science. The almost quantum set contains stronger-than-quantum
correlations, yet it is shown to satisfy all device-independent axioms
proposed in the past to characterize the quantum set. This is so with
the possible exception of the principle of information causality, with
which, according to all existing numerical evidence, the almost quantum
set also complies. The almost quantum set hence represents a severe
obstruction to any hypothetical reconstruction of quantum theory via
device-independent principles. On the positive side, I will argue that,
for the almost quantum set to describe the correlation statistics of a
consistent physical theory, the latter should possess very perturbing
features.
Zur Webseite der Veranstaltung
Veranstalter
Kontakt
Chiara Cardelli
IQOQI-Vienna
+431427729557
chiara.cardelli@oeaw.ac.at
Erstellt am Dienstag, 29. Oktober 2019, 12:13
Letzte Änderung am Dienstag, 29. Oktober 2019, 14:53