2011

Optical flux lattices for two-photon dressed states – Archive ouverte HAL

N. R. Cooper 1, 2 J. Dalibard 3 N. R. Cooper, J. Dalibard. Optical flux lattices for two-photon dressed states. EPL : Europhysics Letters, 2011, 95 (6), pp.66004. ⟨10.1209/0295-5075/95/66004⟩. ⟨hal-03740657⟩ We describe a simple scheme by which « optical flux lattices » can be implemented in ultracold atomic gases using two-photon dressed states. This scheme can be …

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Randomizing Genome-Scale Metabolic Networks – Archive ouverte HAL

Areejit Samal 1, 2 Olivier C. Martin 3, 4 Areejit Samal, Olivier C. Martin. Randomizing Genome-Scale Metabolic Networks. PLoS ONE, Public Library of Science, 2011, 6 (7), ⟨10.1371/journal.pone.0022295⟩. ⟨hal-02646417⟩ Networks coming from protein-protein interactions, transcriptional regulation, signaling, or metabolism may appear to have « unusual » properties. To quantify this, it is appropriate to randomize the network …

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Archive ouverte HAL – Randomizing Genome-Scale Metabolic Networks

Areejit Samal 1, 2 Olivier C. Martin 3, 4 Areejit Samal, Olivier C. Martin. Randomizing Genome-Scale Metabolic Networks. PLoS ONE, Public Library of Science, 2011, 6 (7), ⟨10.1371/journal.pone.0022295⟩. ⟨hal-02646417⟩ Networks coming from protein-protein interactions, transcriptional regulation, signaling, or metabolism may appear to have « unusual » properties. To quantify this, it is appropriate to randomize the network …

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Archive ouverte HAL – Conformal blocks in Virasoro and W theories: duality and the Calogero-Sutherland model

Benoit Estienne 1, 2 Vincent Pasquier 3 Raoul Santachiara 4, 5 Didina Serban 3 Nuclear Physics B, Elsevier, 2011, 860, pp.377-420. 〈10.1016/j.nuclphysb.2012.03.007〉 We study the properties of the conformal blocks of the conformal field theories with Virasoro or W-extended symmetry. When the conformal blocks contain only second-order degenerate fields, the conformal blocks obey second order …

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Why does Nature use exactly four letters to encode genetic information?

Genetic information in all life cells is kept within the primary sequences of DNA and RNA molecules. Both of them are heteropolymers consisting of four different nucleotide types. The question « why nature uses exactly four letters to encode genetic information » was discussed since the role of DNA and RNA in storing and transmission of genetic …

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Recrutement maitre conference

Assistant Professor position with tenure in the condensed matter theory   Poste de Maître de Conférences en Théorie de la Matière Condensée 1. VERSION FRANÇAISE Un poste de Maître de Conférences en Théorie de la Matière Condensée est susceptible d’être créé à l’Université Paris-Sud (Faculté des Sciences d’Orsay) en 2008. Le laboratoire d’accueil est le …

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Superfluid Motion of Light

Un supraconducteur est un matériau sans résistance électrique ; un superfluide exprime l’absence de viscosité d’un fluide neutre. Ces deux propriétés, fortement reliées, figurent parmi les manifestations les plus spectaculaires de la nature quantique de la matière. Elles ont déjà été observées expérimentalement dans plusieurs systèmes, comme par exemple le mercure (pour la première fois …

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