Fwd: [Mpqth-announce] Talk by Jordi Tura this Thursday at 16:00

[Michael Cuffaro]

Dear all,

this may be of interest to some of you (though unfortunately I cannot 
attend myself):


-------- Forwarded Message --------
Subject: [Mpqth-announce] Talk by Jordi Tura this Thursday at 16:00
Date: Tue, 16 Jun 2015 14:08:49 +0200
From: Gemma De las Cuevas <Gemma.DelasCuevas at mpq.mpg.de>
To: mpqth-announce at mpq.mpg.de

Dear all,

Our guest Jordi Tura (from ICFO, close to Barcelona) will give a talk

	this Thursday 18.6. at 16:00 in our seminar room

about

	Bell's nonlocality in many-body 1-D systems.

Abstract: It has been recently shown that Bell's nonlocality can be
revealed in many-body systems which are permutationally invariant by
only measuring two-body correlations. Also, for translationally
invariant systems with a small (n<6) number of particles, this has
been shown to be the case. In this talk, I will discuss how one can
study 1-D systems with a large number of parties efficiently.
I will start by introducing the technique of dynamic programming, that
allows to efficiently calculate the classical limit of any Bell
inequality for 1-D systems. Then I will focus on giving a lower bound
on the quantum limit of such an inequality, by doing appropriate
measurements, such that the resulting Bell operator can be mapped to a
system of free fermions. Finally, I will focus on the translationally
invariant case, where analytically closed expressions can be given.

This will replace our quantum coffee.

Everybody is welcome!

Best,
Gemma
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