arXiv subjects

Rene Meyer

Publications and source records attributed to Rene Meyer.

39 records · Page 3Linked to original sources

arXiv2006

Ramifications of Lineland

A non-technical overview on gravity in two dimensions is provided. Applications discussed in this work comprise 2D type 0A/0B string theory, Black Hole evaporation/thermodynamics, toy models for quantum gravity, for numerical General Relativity in the context of critical collapse and for solid state analogues of Black Holes. Mathematical relations to integrable models, non-linear gauge theories, Poisson-sigma models, KdV surfaces and non-commutative geometry are presented.

hep-th↗

arXiv2006

Constraints in two-dimensional Dilaton Gravity with Fermions

Generalized Dilaton Theories in two dimensions coupled to Dirac fermions are subjected to constraint analysis. Three first class secondary constraints are found, corresponding to one local Lorentz symmetry and two diffeomorphisms. Moreover, the system also yields second class constraints from the fermions. The algebra of first class constraints is calculated in some detail, and is found to be related to the classical Virasoro algebra.

hep-th↗

arXiv2003

1-D Simulation of the Electron Density Distribution in a Novel Nonvolatile Resistive Random Access Memory Device

The operation of a novel nonvolatile memory device based on a conductive ferroelectric/non-ferroelectric thin film multilayer stack is simulated numerically. The simulation involves the self-consistent steady state solution of Poisson's equation and the transport equation for electrons assuming a Drift-Diffusion transport mechanism. Special emphasis is put on the screening of the spontaneous polarization by conduction electrons as a function of the applied voltage. Depending on the orientation of the polarization in the ferroelectric layer, a high and a low resistive state are found giving rise to a hysteretic I-V characteristic. The R_high to R_low ratio ranging from > 50% to several orders of magnitude is calculated as a function of the dopant content.

cond-mat.mtrl-sci↗