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The study of complex networks has attracted more and more interest in the recent past, fueled in particular by the development of communication and information networks. It turned out that many important aspects of the physical world or of social interactions can also be modelized by such networks. However, these powerful tools have never been […]

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

The problem of decoherence in closed quantum systems is one of the hottest unsolved problems in condensed matter physics. It is important conceptually, as it addresses the basic issue of the nature and decay of many-body states in quantum physics. It also has important implications, as it governs the low temperature noise that makes quantum

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

See this page and R. Yusupov, T. Mertelj, V.V. Kabanov, S. Brazovskii, P. Kusar, J.-H. Chu, I. R. Fisher et D. Mihailovic, Nature Physics, Volume 6, 681–684 (2010).

Entanglement is a very fundamental and amazing feature of quantum theory. It measures non-classical non-local correlations between different parts of a quantum system. If the quantum system is in a highly entangled state, measuring an observable on a part of the system can strongly and instantaneously affect the state of another part of the system,