Non-equilibrium phase transitions in the two-temperature Ising model with Kawasaki dynamics

Cataloged from PDF version of article.Phase transitions of the two-finite temperature Ising model on a square lattice are investigated by using a position space renormalization group (PSRG) transformation. Different finite temperatures, T-x and T-y, and also different time-scale constants, alpha(x) and alpha(y) for spin exchanges in the x and y directions define the dynamics of the non-equilibrium system. The critical surface of the system is determined by RG flows as a function of these exchange parameters. The Onsager critical point (when the two temperatures are equal) and the critical temperature for the limit when the other temperature is infinite, previously studied by the Monte Carlo method, are obtained. In addition, two steady-state fixed points which correspond to the non-equilibrium phase transition are presented. These fixed points yield the different universality class properties of the non-equilibrium phase transitions

Nonlinear schrödinger equation for quantum computation

Utilization of a quantum system whose time-development is described by the nonlinear Schrödinger equation in the transformation of qubits would make it possible to construct quantum algorithms which would be useful in a large class of problems. An example of such a system for implementing the logical NOR operation is demonstrated. © World Scientific Publishing Company

Printing On Paper: Costly Nuisance Or Pedagogical Imperative?

What are the typical printing behaviors of students? What is the extent of wastage? What are student attitudes towards different pay-per-print schemes? What might be strategies for educational institutions to achieve less printing while not impeding pedagogical quality? “If all printers were determined not to print anything till they were sure it would offend nobody, there would be very little printed” - Benjamin Frankli

Facets of job satisfaction and work engagement

This study analyzes the relationship between the the facets of job satisfaction and the work engagement. Previous studies that focus on the linkages between work engagement and overall job satisfaction ignore the multi-faceted nature of job satisfaction construct. In this study, how job satisfaction facets are linked to three dimensions of work engagement - i.e. vigor, dedication and absorption- is discussed by drawing on the Social Exchange Theory. The cross-lagged data used in this study comes from the specialist lending division of a UK bank. The Linear Multiple Regression analyzes are run to test the proposed theoretical model. The results show that among all the job satisfaction facets, the ‘satisfaction with work itself’ is the key driver of all dimensions of work engagement i.e. vigor, dedication and absorption. The ‘satisfaction with conditions’ is negatively linked to absorption of employees in their work. This means that the employees with high workload might not be absorbed in their work. Finally, it is found that employees who are satisfied with the communication in their work are also absorbed in their work. This study contributes to our knowledge of the drivers of work engagement over time. The facets of job satisfaction as the drivers help us to have a comprehensive understanding of the link between the job satisfaction facets and work engagement. This study first contributes to the work engagement literature which has neglected the multi-dimensional approach of job satisfaction. This study also contributes to the limited number of work engagement studies conducted in service sector and in UK

Numerical implementation of absorbing and injecting boundary conditions for the time-dependent Schrödinger equation

A method is described that enables the absorption and injection of wave functions at the boundaries of a region in a numerical solution to the time-dependent Schrödinger equation. A number of results corresponding to one- and two-dimensional simulations are presented. Such boundary conditions enable the use of time-dependent simulations of geometries connected to contacts that correspond to sources and sinks of particles in thermal equilibrium. The approach presented has a number of attractive features from a numerical-implementation point of view. © 1995 The American Physical Society