Now showing items 1-10 of 11
Thermal production of axions in the Earth
(American Physical Society, 2009-05)
We estimate the production rate of axion-type particles in the core of the Earth, at a temperature T approximate to 5000 K. We constrain thermal geo-axion emission by demanding a core-cooling rate less than O(100) K/Gyr, ...
Effect of Ba incorporation on pressure-induced structural changes in the relaxor ferroelectric PbSc0.5Ta0.5O3
(American Physical Society, 2009-09-28)
Pressure-induced structural changes in the canonical relaxor Pb0.78Ba0.22Sc0.5Ta0.5O3 were studied with both in-house and synchrotron single-crystal x-ray diffraction as well as Raman spectroscopy at pressures up to 9.8 ...
First Measurement of the Neutron beta Asymmetry with Ultracold Neutrons
(American Physical Society, 2009-01-09)
We report the first measurement of an angular correlation parameter in neutron beta decay using polarized ultracold neutrons (UCN). We utilize UCN with energies below about 200 neV, which we guide and store for similar to ...
The edge of supersymmetry: Stability walls in heterotic theory
(Elsevier Science Bv, 2009-06-22)
Numerical simulation of drop retraction after a strain jump
(American Physical Society, 2009-04)
A spherical drop of one liquid suspended in another is subjected to an instantaneous initial shear. We simulate the retraction of the drop to its spherical equilibrium and compare the results with recent experiments. In ...
Spin and phase coherence measured by antilocalization in n-InSb thin films
(American Physical Society, 2009-02-25)
The spin and phase coherence times of the itinerant electrons in n-InSb thin films were experimentally determined by analyzing the low-temperature magnetoresistance in antilocalization theory. The results indicate a very ...
Layer-by-layer self-assembled conductor network composites in ionic polymer metal composite actuators with high strain response
(AIP Publishing, 2009-07-01)
We investigate the electromechanical response of conductor network composite (CNC) fabricated by the layer-by-layer (LbL) self-assembly method. The process makes it possible for CNCs to be fabricated at submicron thickness ...
Characterization of electrical conductivity in a zeolitelike material
(AIP Publishing, 2009-10)
We present the electrical characterization of a zeolitelike oxo-vanadium arsenate framework. The experimentally obtained electronic and ionic conductivities and their interactions are discussed. Further, we investigate the ...
Competition between multiple totally asymmetric simple exclusion processes for a finite pool of resources
(American Physical Society, 2009-09)
Using Monte Carlo simulations and a domain-wall theory, we discuss the effect of coupling several totally asymmetric simple exclusion processes (TASEPs) to a finite reservoir of particles. This simple model mimics directed ...
Quantum Nonequilibrium Steady States Induced by Repeated Interactions
(American Physical Society, 2009-05-22)
We study the steady state of a finite XX chain coupled at its boundaries to quantum reservoirs made of free spins that interact one after the other with the chain. The two-point correlations are calculated exactly, and it ...