Results 51 to 60 of about 1,869,289 (152)
Propagation of SH waves in a visco-elastic layer overlying an inhomogeneous isotropic half-space
Ain Shams Engineering Journal, 2018 This paper is concerned with the propagation of SH-waves in an inhomogeneous viscoelastic layer overlying an inhomogeneous isotropic half-space. For the study of viscoelastic layer Kelvin–Voigt type model has been considered.
S. Majhi, P.C. Pal, S. Kumar
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Interacting particles in an activity landscape
New Journal of Physics, 2022 We study interacting active Brownian particles (ABPs) with a space-dependent swim velocity via simulation and theory. We find that, although an equation of state exists, a mechanical equilibrium does not apply to ABPs in activity landscapes. The pressure
Adam Wysocki +2 more
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Galaxy Phase-Space Density Data Preclude That Bose–Einstein Condensate Be the Total Dark Matter
Universe, 2022 Ultralight scalars with a typical mass of the order m∼10−22 eV and light scalars forming a Bose–Einstein condensate (BEC) exhibit a Jeans length in the kpc scale and were therefore proposed as dark matter (DM) candidates.
Héctor J. de Vega, Norma G. Sanchez
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Distribution of Seed Electron Phase Space Density Minima in Earth's Radiation Belts
Geophysical Research LettersWe conducted a statistical analysis of local phase space density (PSD) minima across a wide energy range (∼20 keVs to ∼10 MeV), using observations from the Van Allen Probes and the Geostationary Operational Environmental Satellite.
A. Y. Drozdov +4 more
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ACTIVE SHIELDING OF MAGNETIC FIELD WITH CIRCULAR SPACE-TIME CHARACTERISTIC
Electrical engineering & Electromechanics, 2020 Aim. The synthesis of two degree of freedom robust two circuit system of active shielding of magnetic field with circular space-time characteristic, generated by overhead power lines with «triangle» type of phase conductors arrangements for reducing the ...
B. I. Kuznetsov +5 more
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Probabilistic Q-function distributions in fermionic phase-space
New Journal of Physics, 2015 We obtain a positive probability distribution or Q -function for an arbitrary fermionic many-body system. This is different to previous Q -function proposals, which were either restricted to a subspace of the overall Hilbert space, or used Grassmann ...
Laura E C Rosales-Zárate, P D Drummond
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Reversible Formation of a Bose-Einstein Condensate
, 1998 We present a method of adiabatically changing the local phase-space density of an ultracold gas, using a combination of magnetic and optical forces. Applying this method, we observe phase-space density increases in a gas of sodium atoms by as much as 50 ...
Chikkatur, A. P. +5 more
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Electron beam phase-space measurement using a high-precision tomography technique
Physical Review Special Topics. Accelerators and Beams, 2003 We report a measurement of the multidimensional phase-space density distribution of an electron bunch. The measurement combines the techniques of picosecond slice-emittance measurement and high-resolution tomographic measurement of transverse phase space.
V. Yakimenko +4 more
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Electrical engineering & Electromechanics, 2020 Aim. The synthesis, computer modeling and field experimental research of two degree of freedom robust two circuit system of active shielding of magnetic field with circular space-time characteristic, generated by overhead power lines with «triangle» type
B. I. Kuznetsov +2 more
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Phase space density limitation in laser cooling without spontaneous emission
, 2018 We study the possibility to enhance the phase space density of non-interacting particles submitted to a classical laser field without spontaneous emission.
Chanelière, Thierry +2 more
core +3 more sources