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Perspective: The glass transition.
Two conceptual and methodological approaches put forward recently that aim to access the fundamental critical phenomenon underlying the glass transition, be it thermodynamic or dynamic in origin, by means of biasing of ensembles, of configurations in the thermodynamic case, or of trajectories in the dynamic case are considered.
Dynamic Order-Disorder in Atomistic Models of Structural Glass Formers
Numerical evidence is presented for the existence of a novel first-order dynamical phase transition in atomistic models of structural glass formers, offering the possibility of a unified picture of glassy phenomena.
Excitations Are Localized and Relaxation Is Hierarchical in Glass-Forming Liquids
Supercooled glass-forming liquids are known to have complex and sluggish macroscopic dynamics. But, what are the atomic motions underlying such dynamics? Researchers from the US and Britain use…
THERMAL MODEL FOR ADAPTIVE COMPETITION IN A MARKET
New continuous and stochastic extensions of the minority game, devised as a fundamental model for a market of competitive agents, are introduced and studied in the context of statistical physics. The…
Dynamics on the way to forming glass: bubbles in space-time.
A theoretical perspective of the dynamics of glass-forming liquids and the glass transition is reviewed, a perspective developed during this past decade based on the structure of trajectory space, which is characterized in terms of dynamical heterogeneity, facilitation, and excitation lines.
Corresponding states of structural glass formers.
- Yael S. Elmatad, D. Chandler, J. P. Garrahan
- PhysicsThe journal of physical chemistry. B
- 15 November 2008
The variation with respect to temperature T of transport properties of 58 fragile structural glass-forming liquids are analyzed and shown to exhibit a remarkable degree of universality, including super-Arrhenius behaviors of all supercooled liquids.
Thermodynamics of quantum jump trajectories.
It is shown that in the long time limit the statistics of quantum jumps can be understood from thermodynamic arguments in terms of dynamical phases and transitions between them in trajectory space.
Dynamical phases and intermittency of the dissipative quantum Ising model
We employ the concept of a dynamical, activity order parameter to study the Ising model in a transverse magnetic field coupled to a Markovian bath. For a certain range of values of the spin-spin…
Update on biomarkers in neuromyelitis optica
- E. Melamed, M. Levy, S. Zamvil
- Biology, MedicineNeurology: Neuroimmunology & Neuroinflammation
- 23 July 2015
Known and potential biomarkers for NMO are discussed and Collaborative international studies hold great promise for establishing and validating biomarkers that are useful in therapeutic trials and clinical management.
Coarse-grained microscopic model of glass formers
A coarse-grained model for atomic glass formers whose elements are physically motivated local microscopic dynamical rules parameterized by observables predicts the presence of a crossover from hierarchical super-Arrhenius dynamics at short length scales to diffusive Arrhenii dynamics at large length scales.