Quantization goes polynomial

Quantization of Non-Polynomial Field Theories

Quantization of Non-polynomial Field Theories

We reexamine the quantization of a class of non-polynomial scalar field theories which interpolates continuously from a free one to φ 4 theory. The quantization of such theories is problematic because the Feynman rules may not be directly obtained. We give a means for calculating the correlation functions in this theory. The Feynman rules developed here shall enable further progress in the unde...

Coefficient Quantization Error Free Fixed-point Iir Polynomial Predictor Design

In this paper, roundoff noise properties of fixed-point IIR polynomial predictors (FIPPs) and polynomial-predictive differentiators (FIPPDs) are investigated. These filters are designed by augmenting the corresponding FIR basis filters with magnitude response shaping feedbacks. Here we use ideally quantized coefficient (coefficient quantization error free) polynomial FIR predictors (PFPs) or pr...

As iron goes, so goes disease?

The brain iron overload disorders, collectively known as neurodegeneration with brain iron accumulation (NBIA), would seem to be tantalizing targets for chelation therapy. Efforts to lower brain iron in these disorders date back to the 1960s with deferoxamine mesylate, but systemic iron depletion limited its use. With the advent of chelators better able to specifically relieve central nervous s...

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Motivated by recent developments in solid electrolytes based on lithium phosphorous oxynitride (LiPON) materials, we carried out computer simulations in order to develop an understanding of the detailed mechanisms of ionic transport. Starting with crystalline Li3PO4, we investigated some possible structures of isolated defects associated with extrinsic Li ion vacancies and interstitials. In par...