Results 21 to 30 of about 809,191 (273)

Photon Pair Generation in Silicon Micro-Ring Resonator with Reverse Bias Enhancement [PDF]

, 2012
Photon sources are fundamental components for any quantum photonic technology. The ability to generate high count-rate and low-noise correlated photon pairs via spontaneous parametric down-conversion using bulk crystals has been the cornerstone of modern
Alex S. Clark, Azzini, Bonneau, Chandra M. Natarajan, Clemmen, Damien Bonneau, Erman Engin, Gajda, Harada, Harada, Haruhiko Yoshida, Helt, Jeremy L. O’Brien, Kazuya Ohira, M. G. Tanner, Mark G. Thompson, Marsili, Matsuda, Migdall, Mizunori Ezaki, Nobuo Suzuki, Norio Iizuka, Peruzzo, Politi, Politi, R. H. Hadfield, Rong, Rong, Rukhlenko, Sanders N. Dorenbos, Schuck, Shadbolt, Sharping, Tanner, Thompson, Turner-Foster, Val Zwiller, Xiong, Xu   +38 more
core   +3 more sources

An acoustic analysis of the rhythm of Yemeni Arabic

Journal of Modern Languages, 2019
Previous studies have found that different Arabic dialects display different degrees of stress-timing features forming a continuum that ranges from more stress-timed to less stress-timed Arabic dialects.
Nada Mohammed Salem, Stefanie Pillai
doaj   +14 more sources

The generalized equation of generation of spontaneous electromagnetic emission in a fractal medium

Геофизический журнал, 2013
Different aspects of phenomenological description of mechanisms of generation and distribution of spontaneous component of electromagnetic emission of lithospheric origin have been considered in the paper.
V.N. Shuman
doaj   +1 more source

Critical Components for Spontaneous Activity and Rhythm Generation in Spinal Cord Circuits in Culture

Frontiers in Cellular Neuroscience, 2020
Neuronal excitability contributes to rhythm generation in central pattern generating networks (CPGs). In spinal cord CPGs, such intrinsic excitability partly relies on persistent sodium currents (INaP), whereas respiratory CPGs additionally depend on ...
Samuel Buntschu, Anne Tscherter, Martina Heidemann, Jürg Streit   +3 more
doaj   +1 more source

Spontaneous generation of eigenvalues

, 2005
We show that the action of conformal vector fields on functions on the sphere determines the spectrum of the Laplacian (or the conformal Laplacian), without further input of information.
Beckner, Bent Ørsted, Branson, Branson, Kosmann, Penrose, Strichartz, Thomas Branson   +7 more
core   +1 more source

Symmetry Analysis of Multiferroic Co_3TeO_6 [PDF]

, 2012
A phenomenological explanation of the magnetoelectric behavior of Co_3TeO_6 is developed. We explain the second harmonic generation data and the magnetic field induced spontaneous polarization in the magnetically ordered phase below 20K.Comment: Phys rev
A. B. Harris, A. J. C. Wilson, H. T. Stokes, R. R. Birss, T. Nagamiya   +4 more
core   +4 more sources

Spontaneous Generation of Photons in Transmission of Quantum Fields in PT Symmetric Optical Systems

, 2013
We develop a rigorous mathematically consistent description of PT symmetric optical systems by using second quantization. We demonstrate the possibility of significant spontaneous generation of photons in PT symmetric systems.
G. S. Agarwal, Kenan Qu, M. Born, M. O. Scully   +3 more
core   +1 more source

Effect of channel block on the spiking activity of excitable membranes in a stochastic Hodgkin-Huxley model [PDF]

, 2004
The influence of intrinsic channel noise on the spontaneous spiking activity of poisoned excitable membrane patches is studied by use of a stochastic generalization of the Hodgkin-Huxley model.
Chow C C, Clay J R, DeFelice L J, Fox R F, G Schmid, Gammaitoni L, Goldman M S, Hille B, Hodgkin A L, Hänggi P, Hänggi P, I Goychuk, Lecar H, LeMasson G, P Hänggi, Press W H, Skaugen E, Strassberg A F   +17 more
core   +2 more sources

Scale Symmetry Breaking from the Dynamics of Maximal Rank Gauge Field Strengths

, 2003
Scale invariant theories which contain maximal rank gauge field strengths (of $D$ indices in $D$ dimensions) are studied. The integration of the equations of motion of these gauge fields leads to the s.s.b. of scale invariance. The cases in study are: i)
E. I. GUENDELMAN, Guendelman E. I., Sakharov A.   +2 more
core   +3 more sources

Study on primal CO gas generation and emission of coal seam

International Journal of Mining Science and Technology, 2017
The main method of casting coal spontaneous combustion is prediction of index gases, with carbon monoxide (CO) commonly used as an index gas. However, coal spontaneous combustion is not the sole source of CO evolution; primal CO is generated through ...
Hongqing Zhu, Mingran Chang, Haiyan Wang
doaj   +1 more source