It is shown how the pinch technique algorithm may be consistently extended beyond the one-loop level to obtain the gauge-independent two-loop fermion self-energy −iΣ̂(p) in QCD in the pinch technique approach. The starting point for the construction is the general diagrammatic representation of the two-loop quark self-energy in terms of renormalized one-loop twoand three-point function and tree ...

Z-pinch is a useful device for efficient energy injection to the plasma. High-temperature and high-density plasmas can be produced easily in the implosion process by self-magnetic field. Because the radiation from z-pinch plasma lie in various wavelength region, the application to pulsed and intense light source such as Extreme Ultra Violet (EUV) light for the next generation semiconductor lith...

We study a quantum point contact in a quantum spin Hall insulator. It has recently been shown that the Luttinger liquid theory of such a structure maps to the theory of a weak link in a Luttinger liquid with spin with Luttinger liquid parameters g =1 /g =g 1. We show that for weak interactions, 1 /2 g 1, the pinch-off of the point contact as a function of gate voltage is controlled by a novel q...

The structure factor for electric field correlations in the two dimensional Coulomb fluid is simulated and compared to theories of dielectric function. Singular changes occur at BKT insulator conductor transition, as well a higher temperature correlation transition between poor electrolyte perturbed Debye-H\"uckel fluid. Structure factors are found differ canonical grand ensembles, with showing...

The S-matrix pinch technique is used to derive an effective gluon selfenergy to one-loop order, when the theory is quantized in the Coulomb gauge (CG) and in the temporal axial gauge (TAG). When the pinch contributions are added, the gluon self-energies calculated in CG and TAG turn out to be identical and coincide with the result previously obtained with covariant gauges. The issue of gauge in...

In the reversed field pinch RFX-mod strong electron temperature gradients develop when the single-helical-axis regime is achieved. Gyrokinetic calculations show that in the region of the strong temperature gradients microtearing instabilities are the dominant turbulent mechanism acting on the ion Larmor radius scale. The quasilinear evaluation of the electron thermal conductivity is in good agr...

pinch technology is one of the best methods for designing a multi stream heat exchanger(mshe) through a network; current pinch-based methods, however, lead to a larger and more complicateddesign problems. the major drawback of the current methods is they result in designs having more individual mshe sections than essential, correspond to the enthalpy intervals on temperature vs. enthalpy diagra...

Pinch Analysis is a methodology for minimizing energy consumption of chemical plant by maximizing the utilization of hot and cold utilities available within the process, thereby reducing the use of external utilities. It is also known as process integration, heat integration, energy integration or Pinch technology. Pinch technology is applied on various process flow diagrams from chemical indus...

Two- and three-dimensional MHD simulations are used to provide a theoretical description of 2 wire molybdenum X-pinch experiments. The initial evolution from solid wires to the formation of supersonic jets and a central micro-Z pinch is found to result from the slow rate of wire ablation and from the distribution of the Lorentz force. The growth of m=0 instabilities triggers the formation of mi...

For the first time, a geometry has been developed to allow for an axial imaging system for wire-array Z-pinch experiments that produce high-resolution x-ray images. The new geometry required a significant redesign of the electrode hardware. Calibrated areal density measurements of the Z-pinch plasma including wire cores, coronal plasma, streaming plasma, and the precursor were obtained. The sys...