We apply the Coherent Potential Approximation (CPA) to a simple extended Hubbard model with a nearest and next nearest neighbour hopping for disordered superconductors with s–, d– and p–wave pairing. We show how the Van Hove singularities in the electron density of states enhance the transition temperature Tc for exotic superconductors in a clean and weakly disordered system. The Anderson theor...

fictional names have been one of the most important and serious topics in the contemporary philosophy of language and metaphysics.several questions such as “do fictional names refer to any objects?” “are fictional characters existent objects?” have resulted in a considerable literature of philosophy. in this essay, we will follow two objectives. first we will describe and elaborate the ideas ...

The van der Pol oscillator is the prototypical self-sustained oscillator and has been used to model nonlinear behavior in biological and other classical processes. We investigate how quantum fluctuations affect phase locking of one or many van der Pol oscillators. We find that phase locking is much more robust in the quantum model than in the equivalent classical model. Trapped-ion experiments ...

We consider a Kuramoto model of coupled oscillators that includes quenched random interactions of the type used by van Hemmen in his model of spin glasses. The phase diagram is obtained analytically for the case of zero noise and a Lorentzian distribution of the oscillators' natural frequencies. Depending on the size of the attractive and random coupling terms, the system displays four states: ...

The robotic manipulation of microscopic objects is disturbed directly by the adhesion between the endeffector and the objects. In the microscale, no reliable model of adhesion is available and currently the behaviour of the micro-objects cannot be predicted before experiments. This paper proposes a new model of adhesion based on the analytical resolution of the coupling between the mechanical d...

Van der Waals (vdW) coefficients can be accurately generated and understood by modelling the dynamic multipole polarizability of each interacting object. Accurate static polarizabilities are the key to accurate dynamic polarizabilities and vdW coefficients. In this work, we present and study in detail a hollow-sphere model for the dynamic multipole polarizability proposed recently by two of the...

The technique of paired comparison is being commonly studied these days because of its attractive applications for the comparison of several objects, simultaneously. This technique permits the ranking of the objects by means of a score, which reflects the merit of the items on a linear scale. The present study is concerned with the Bayesian analysis of a paired comparison model, namely the van ...

an earthquake was happened on 23 october 2011 in van, turkey (mw7.2) at the eastern most area of anatolian plateau and in the neighborhood of iranian border (west azerbaijan province). the study was performed based on field and office observations and has been focused on the process of disaster management in turkey after the 23 october 2011 earthquake. we surveyed the quake from the view point ...