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Enhancement of the electromechanical response in ferroelectric ceramics by design
the electromechanical ferroelectric ceramics
2010/11/17
It is demonstrated based on continuum mechanics modeling and simulation that it is possible to obtain polycrystalline ceramic ferroelectric materials which beggars single crystals in electromechanical...
Intrinsic Geometric Analysis of the Network Reliability and Voltage Stability
Geometric Analysis the Network Reliability Voltage Stability
2010/11/17
This paper presents the intrinsic geometric model for the solution of power system planning and its operation. This problem is large-scale and nonlinear, in general. Thus, we have developed the intri...
From the perspective of the network theory, the present work illustrates how the parametric intrinsic geometric description exhibits an exact set of pair correction functions and global correlation vo...
Duality violations in tau hadronic spectral moments
Duality violations tau hadronic spectral moments
2011/1/14
Evidence is presented for the necessity of including duality violations in a consistent description of spectral function moments employed in the precision determination of s from decay. A physicall...
Beyond the Random Phase Approximation for the Electron Correlation Energy: The Importance of Single Excitations
the Electron Correlation Energy Single Excitations
2010/11/17
The random phase approximation (RPA) for the electron correlation energy, combined with the exact-exchange energy, represents the state-of-the-art exchange-correlation functional within density-funct...
On a possibility of effective electron attraction without "a glue"
possibility of effective electron attraction
2010/11/25
Despite being under attack for almost twenty-five years there is no yet a commonly accepted solution for the problem of high temperature superconductivity1. Among different approaches there are theore...
The RMS Charge Radius of the Proton and Zemach Moments
RMS Charge Radius of the Proton Zemach Moments
2011/1/6
On the basis of recent precise measurements of the electric form factor of the proton, the Zemach moments, needed as input parameters for the determination of the proton rms radius from the measuremen...
On negative higher-order Kerr effect and filamentation
higher-order Kerr effect filamentation
2010/11/12
As a contribution to the ongoing controversy about the role of higher-order Kerr effect (HOKE) in laser filamentation, we first provide thorough details about the protocol that has been employed to i...
AC-Stark shift and photoionization of Rydberg atoms in an optical dipole trap
AC-Stark shift photoionization Rydberg atoms
2010/11/12
We have measured the AC-Stark shift of the $14D_{5/2}$ Rydberg state of rubidium 87 in an optical dipole trap formed by a focussed CO$_2$-laser. We find good quantitative agreement with the model of ...
Non-perturbative running of the coupling from four flavour lattice QCD with staggered quarks
Non-perturbative running coupling from four flavour lattice QCD staggered quarks
2011/1/14
Using the Schrödinger functional (SF) with a single staggered fermion field we calculate the SF
coupling in four-flavour QCD for a wide range of energies and lattice sizes up to L/a = 16.
Preli...
A New Rb Lamp Exciter Circuit for Rb atomic clocks and Studies on Transition from Ring to Red mode
Rb Lamp Exciter Circuit Rb atomic clocks
2010/11/16
In this paper we describe the development of novel RF exciter circuit for electrode less Rb lamp. The lamp exciter circuit is a RF oscillator with a a new configuration operating at 60 to 65 MHz freq...
Effective Polyakov-loop theory for pure Yang-Mills from strong coupling expansion
Effective Polyakov-loop theory pure Yang-Mills strong coupling expansion
2011/1/13
Lattice Yang-Mills theories at finite temperature can be mapped onto effective 3d spin systems,
thus facilitating their numerical investigation.
Isoscalar dipole coherence at low energies and forbidden E1 strength
Isoscalar dipole coherence low energies forbidden E1 strength
2011/1/6
In 16O and 40Ca an isoscalar, low-energy dipole transition (IS-LED) exhausting approximately
4% of the isoscalar dipole (ISD) energy-weighted sum rule is experimentally known, but conspicuously absen...
Controlling surface plasmon polaritons in transformed coordinates
plasmon polaritons transformed coordinates
2010/11/16
Transformational optics allow for a markedly enhanced control of the electromagnetic wave trajectories within metamaterials with interesting applications ranging from perfect lenses to invisibility c...
Rare-gas clusters in intense VUV, XUV and soft x-ray pulses: Signatures of the transition from nanoplasma-driven cluster expansion to Coulomb explosion in ion and electron spectra
VUV XUV soft x-ray pulses
2010/11/16
We investigate the wavelength dependent ionization, heating, and expansion dynamics of medium-sized rare-gas clusters (Ar$_{923}$) under intense femtosecond short-wavelength free electron laser pulse...