395 research outputs found

    Critical behavior at Mott-Anderson transition: a TMT-DMFT perspective

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    We present a detailed analysis of the critical behavior close to the Mott-Anderson transition. Our findings are based on a combination of numerical and analytical results obtained within the framework of Typical-Medium Theory (TMT-DMFT) - the simplest extension of dynamical mean field theory (DMFT) capable of incorporating Anderson localization effects. By making use of previous scaling studies of Anderson impurity models close to the metal-insulator transition, we solve this problem analytically and reveal the dependence of the critical behavior on the particle-hole symmetry. Our main result is that, for sufficiently strong disorder, the Mott-Anderson transition is characterized by a precisely defined two-fluid behavior, in which only a fraction of the electrons undergo a "site selective" Mott localization; the rest become Anderson-localized quasiparticles.Comment: 4+ pages, 4 figures, v2: minor changes, accepted for publication in Phys. Rev. Let

    Compositionality in the temporal logic of concurrent systems

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    A compositional proof system for dynamic proces creation

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    A proof system for the language POOL

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    A proof system for the language POOL

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    A proof theory for a sequential version of POOL

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    On the asynchronous nature of communication in concurrent logic languages : a fully abstract model based on sequences

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    On the asynchronous nature of communication model based on sequences b

    A process algebra of concurrent constraint programming

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    A proof theory for a sequential version of POOL

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    Run-Time Verification of Black-Box Components Using Behavioral Specifications: An Experience Report on Tool Development

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    We introduce a generic component-based design of a run-time checker, identify its components and their requirements, and evaluate existing state of the art tools instantiating each component
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