Quantum Electrodynamics can be formulated as the theory of an antisymmetric tensor gauge field. In this formulation the topologi-cal current of this field appears as an additional source for the electromagnetic field.The topological charge therefore acts physically as an electric charge. The topologically nontrivial, electrically charged, sector contains massless states orthogonal to the vacuum...

The antilinear operator representation of bipartite pure states of the relative state formulation of quantum mechanics is applied to describe quantum teleportation schemes utilizing an arbitrary pure state as the entangled resource. Bennett type teleportation schemes with nonmaximally entangled pure states are characterized and the notion of ‘entanglement matching’ is introduced in general. Exa...

this paper proposes a novel approach for coherent generators online clustering in a large power system following a wide area disturbance. an interconnected power system may become unstable due to severe contingency when it is operated close to the stability boundaries. hence, the bulk power system controlled islanding is the last resort to prevent catastrophic cascading outages and wide area bl...

let $f: arightarrow b$ be a ring homomorphism and let $j$ be an ideal of $b$. in this paper, we investigate the transfer of the property of coherence to the amalgamation $abowtie^{f}j$. we provide necessary and sufficient conditions for $abowtie^{f}j$ to be a coherent ring.

In the present study, a modified Structure Function was introduced. In this modified Structure Function model, the coefficient of model was computed dynamically base on the coherent structure in the flow field. The ability of this Modified Structure Function was investigated for complex flow over a square cylinder in free stream and a low aspect ratio cylinder confined in a channel. The Results...

Phase unwrapping as used in InSAR geodesy is the reconstruction of absolute phase from measured phase known only modulo 2 on a finite grid of points in either 2 two or three dimensions. Many effective methods have been developed for unwrapping SAR interferograms [1-5], however phase unwrapping is a key step in many other coherent imaging techniques as well. Network programming approaches [3-4] ...

Alan S. Willsky, MEMBER SPIE Massachusetts Institute of Technology Laboratory for Information and Decision Systems Cambridge, Massachusetts 02139 Abstract. We propose a method for feature-preserving regularized reconstruction in coherent imaging systems. In our framework, image formation from measured data is achieved through the minimization of a cost functional, designed to suppress noise art...