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Champs-sur-Marne, France

The University Paris-Est Marne-la-Vallée is a French university, in the Academy of Créteil. Wikipedia.

Houdayer C.,University of Marne-la-Vallee
Communications in Mathematical Physics | Year: 2015

Let (Formula presented.) be a free product of arbitrary von Neumann algebras endowed with faithful normal states. Assume that the centralizer (Formula presented.) is diffuse. We first show that any intermediate subalgebra (Formula presented.) which has nontrivial central sequences in M is necessarily equal to M1. Then we obtain a general structural result for all the intermediate subalgebras (Formula presented.) with expectation. We deduce that any diffuse amenable von Neumann algebra can be concretely realized as a maximal amenable subalgebra with expectation inside a full nonamenable type III1 factor. This provides the first class of concrete maximal amenable subalgebras in the framework of type III factors. We finally strengthen all these results in the case of tracial free product von Neumann algebras. © 2014, Springer-Verlag Berlin Heidelberg. Source

Lassalle M.,University of Marne-la-Vallee
Journal of Combinatorial Theory. Series A | Year: 2012

We prove the following conjecture of Zeilberger. Denoting by C n the Catalan number, define inductively A n by (-1) n-1A n=C n+∑ j=1 n-1(-1)j(2n-1 2j-1)A jC n-j and a n=2A n/C n. Then a n (hence A n) is a positive integer. © 2012 Elsevier Inc. Source

Morimae T.,Imperial College London | Morimae T.,University of Marne-la-Vallee | Fujii K.,Osaka University
Nature Communications | Year: 2012

Blind quantum computation is a novel secure quantum-computing protocol that enables Alice, who does not have sufficient quantum technology at her disposal, to delegate her quantum computation to Bob, who has a fully fledged quantum computer, in such a way that Bob cannot learn anything about Alice's input, output and algorithm. A recent proof-of-principle experiment demonstrating blind quantum computation in an optical system has raised new challenges regarding the scalability of blind quantum computation in realistic noisy conditions. Here we show that fault-tolerant blind quantum computation is possible in a topologically protected manner using the Raussendorf-Harrington-Goyal scheme. The error threshold of our scheme is 4.3×10-3, which is comparable to that (7.5×10-3) of non-blind topological quantum computation. As the error per gate of the order 10-3 was already achieved in some experimental systems, our result implies that secure cloud quantum computation is within reach. © 2012 Macmillan Publishers Limited. All rights reserved. Source

Loconto A.,University of Marne-la-Vallee
Journal of Cleaner Production | Year: 2015

Governing through standards has gained significant academic traction, particularly through discussions of global value chains and instruments of neoliberal private authority. Drawing from ethnographic work, I utilize examples from the tea industry in Tanzania to characterize the pragmatic nature of how standards govern at a distance in local contexts. These examples are the: 1) use of Fairtrade funds to fulfill community obligations; 2) participation in value chain actors' bids for external technical assistance; and 3) participation in donor-funded projects unrelated to standards schemes, yet enable compliance with certification requirements. The analysis reveals that the nature of these programs is a combination of historically entrenched systems and neoliberal approaches to development. By conceptualizing these standards as agencements, rather than instruments of private regulation, we are able to better capture governmentality in the Foucauldean sense - as the mobilization of standards to provide public goods is a mode of governing that necessarily involves far more actors than the State alone. © 2015 Elsevier Ltd. Source

Agency: Cordis | Branch: FP7 | Program: CP-FP | Phase: SiS.2012.1.1.1-1 | Award Amount: 3.71M | Year: 2013

The EU seeks to become a genuine Innovation Union in 2020 striving for excellent science, a competitive industry and a better society without compromising on sustainability goals as well as ethically acceptable and socially desirable conditions. Europe thus needs to develop a normative and comprehensive governance framework for Responsible Research and Innovation (RRI). This is the major goal of Res-AGorA. The Res-AGorA framework will build on existing RRI governance practices across and beyond Europe. It will be reflexive and adaptable to enable the inherent tensions in all governance of RRI to be actively addressed by procedural means aiming to facilitate constructive negotiations and deliberation between diverse actors. The project will achieve these objectives through a set of work packages providing an empirically grounded comparative analysis of a diverse set of existing RRI governance arrangements and their theoretical/conceptual underpinnings across different scientific technological areas (WP2 and WP3), a continuous monitoring of RRI trends and developments in selected countries (WP5) and, based on the cumulative insights derived from these work packages, co-construct with stakeholders the central building blocks and procedures of an overarching future governance framework for RRI (WP4). This governance framework will deliver cognitive and normative guidance that can be applied flexibly in different contexts. Res-AGorA will thus have direct impact on RRI practices (science, industry, policy), and strategic impact in terms of the political goals (Horizon 2020) and competitiveness (Lead Market through growing acceptance of new technologies). Res-AGorA will ensure intensive stakeholder interaction and wide dissemination of its tangible and intangible outputs in order to maximise impact, including comprehensive and interactive stakeholder engagement, liaisons with other ongoing RRI activities funded by the SiS Work Programme, and a final conference.

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