Hi all,
At the beginning of the week after SOLA, we will have three guests, namely Lorenzo Maccone from Torino as well as Nicolas Brunner and Paul Skrzypczyk from Bristol.
We have two talks on Tuesday, namely Lorenzo's at 4pm and Nicolas' at 5pm, both in IFW E44.
Below you find their titles, as well as the abstracts of the corresponding articles.
Have a nice evening! Stefan
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Lorenzo Maccone:
"A quantum solution to the arrow-of-time dilemma"
The arrow of time dilemma: the laws of physics are invariant for time inversion, whereas the familiar phenomena we see everyday are not (i.e. entropy increases). I show that, within a quantum mechanical framework, all phenomena which leave a trail of information behind (and hence can be studied by physics) are those where entropy necessarily increases or remains constant. All phenomena where the entropy decreases must not leave any information of their having happened. This situation is completely indistinguishable from their not having happened at all. In the light of this observation, the second law of thermodynamics is reduced to a mere tautology: physics cannot study those processes where entropy has decreased, even if they were commonplace.
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Nicolas Brunner:
"Emergence of Quantum Correlations from Non-Locality Swapping"
By studying generalized non-signalling theories, the hope is to find out what makes quantum mechanics so special. In the present paper, we revisit the paradigmatic model of non-signalling boxes and introduce the concept of a genuine box. This will allow us to present the first generalized non-signalling model featuring quantum-like dynamics. In particular, we present the coupler, a device enabling non-locality swapping, the analogue of quantum entanglement swapping, as well as teleportation. Remarkably, part of the boundary between quantum and post-quantum correlations emerges in our study.
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