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Institutskolloquium der Physik und Chemie

Die Hochschullehrer der Institute für Physik und Chemie der TU Ilmenau laden am Dienstag, dem 22. Januar, zu einem gemeinsamen Kolloquium der Physik und Chemie ein. Es spricht um 17:15 Uhr im Faraday-Hörsaal Prof. Dr. Diego Frustaglia von der Universidad de Sevilla, Applied Physics II, zum Thema „Quantum Correlations in Classical Contexts".

Zum Vortrag:

The particular set of numerical bounds satisfied by quantum correlations has been intensively studied as a plausible gateway to the first principles of quantum theory, which up to date remain elusive. Here we show that these bounds are indeed not exclusive to quantum theory: for any abstract correlation scenario with compatible measurements, models built on classical waves produce events with probability distributions indistinguishable from those of quantum theory and, therefore, share the same bounds. We demonstrate this by implementing classical microwaves that propagate along meter-size transmission-line circuits, reproducing the probabilities of three emblematic quantum experiments. [1]. Our results show that the "quantum" bounds would also occur in a classical universe without quanta, where classical fields would be the fundamental physical objects. This has several implications to be discussed [2].

[1] D. Frustaglia, J. P. Baltanás, M. C. Velázquez-Ahumada, A. Fernández-Prieto, A. Lujambio, V. Losada, M. J. Freire, and A. Cabello, Phys. Rev. Lett. 116, 250404 (2016). [2] L. Zyga, 'Quantum' bounds not so quantum after all, (July 1st, 2016),