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# Workshop on Entanglement

## November 28, 2014 - November 29, 2014

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Initially, the concept of entanglement has been coined by Schrödinger to describe a fundamental property of a composed, physical system whose parts have interacted in their common past (Schrödinger, 1935):

"When two systems, of which we know the states by their respective representatives, enter into temporary physical interaction due to known forces between them, and when after a time of mutual influence the systems separate again, then they can no longer be described in the same way as before, viz. by endowing each of them with a representative of its own. I would not call that one but rather the characteristic trait of quantum mechanics, the one that enforces its entire departure from classical lines of thought. By the interaction the two representatives [the quantum states] have become entangled."

Entanglement is the central concept of quantum mechanics, which can explain non-locality phenomena, as in all EPR-like experiments. Entanglement can even be used as a physical resource in information protocols, like quantum cryptography or quantum teleportation.

Moreover, as recently suggested by some researchers, the concept of entanglement can be represented within the framework of a generalized, possibly weakened, version of quantum theory where all a priori references to the physical world have been relaxed — which thus gives rise to applications beyond the strict material domain.

This workshop aims to deal with the concept of entanglement according to its different aspects and its possible interpretations. Historical, physical, metaphysical, informational and generalized approaches to this very fruitful concept will be addressed.

Confirmed participants:

**Alexander Afriat**

(SPHERE, Université Paris-Diderot)

**Roberto Angeloni**

(SPHERE, Université Paris-Diderot)

**Harald Atmanspacher**

(Collegium Helveticum, ETH Zurich / IGPP Freiburg, Germany)

**Guido Bacciagaluppi**

(University of Aberdeen)

**Michael Esfeld**

(University of Lausanne)

**Thomas Filk**

(University of Freiburg, Germany)

**Alexei Grinbaum**

(CEA-Saclay, SPEC/LARSIM)

**Hartman Roemer**

(Freiburg University, Germany)

**Pierre Uzan**

(SPHERE, Université Paris-Diderot)

**Harald Walach**

(European University Viadrina, Frankfurt (Oder), Germany)

Organization of the workshop:

**Pierre Uzan and Roberto Angeloni** (SPHERE)

Ce colloque est organisé avec le soutien du laboratoire SPHERE

(CNRS, Universités Paris 7 Diderot et Paris 1 Panthéon-Sorbonne).