Classical q-deformed dynamics

On the basis of the quantum q-oscillator algebra in the framework of quantum groups and non-commutative q-differential calculus, we investigate a possible q-deformation of the classical Poisson bracket in order to extend a generalized q-deformed dynamics in the classical regime. In this framework, classical q-deformed kinetic equations, Kramers and Fokker-Planck equations, are also studied. Pacs: 05.20.Dd, 45.20.-d, 02.20.Uw Keywords: Kinetic theory, q-deformed classical mechanics, quantum groups, quantum algebrasComment: 8 pages, RevTex4; contribution to the international conference "Next Sigma Phi" on News, EXpectations, and Trends in statistical physics, Crete 200

Resistive switching in ultra-thin La0.7Sr0.3MnO3 / SrRuO3 superlattices

Superlattices may play an important role in next generation electronic and spintronic devices if the key-challenge of the reading and writing data can be solved. This challenge emerges from the coupling of low dimensional individual layers with macroscopic world. Here we report the study of the resistive switching characteristics of a of hybrid structure made out of a superlattice with ultrathin layers of two ferromagnetic metallic oxides, La0.7Sr0.3MnO3 (LSMO) and SrRuO3 (SRO). Bipolar resistive switching memory effects are measured on these LSMO/SRO superlattices, and the observed switching is explainable by ohmic and space charge-limited conduction laws. It is evident from the endurance characteristics that the on/off memory window of the cell is greater than 14, which indicates that this cell can reliably distinguish the stored information between high and low resistance states. The findings may pave a way to the construction of devices based on nonvolatile resistive memory effects

Do consumer attitudes matter in capital markets? A study of mutual funds in Oman market

The financial sector particularly the mutual funds in Oman market have shown limited potential to attract consumers. Consumer attitudes towards financial investments have always been a challenge for the finance companies due to limited risk appetite of consumers which are largely attributed to both cognitive and affective components of attitude. Through a process of methodological triangulation data was collected from experts in the finance sector from a sample of 200 consumers. Pearson product moment correlation and standard multiple regressions through SPSS version 20 were used to study the hypothesized relationships in this study. This study throws light on critical variables that shape consumer attitudes towards mutual funds and recommends the scope for introducing new mutual funds which has significant implications on capital markets in Oman