Results 31 to 40 of about 1,482,446 (314)

Collisional excitation of an asymmetric rotor, silicon dicarbide

open access: yesThe Astrophysical Journal, 1987
We have computed rotational excitation rates from the asymmetric top molecule SiC2 in collisions with low-energy He atoms. The intermolecular forces were obtained from an electron gas model, and collision dynamics were treated within the infinite-order sudden approximation.
A Palma, S Green
openaire   +2 more sources

Exact Excited-State Functionals of the Asymmetric Hubbard Dimer

open access: yesThe Journal of Physical Chemistry Letters, 2023
The exact functionals associated with the (singlet) ground and the two singlet excited states of the asymmetric Hubbard dimer at half-filling are calculated using both Levy's constrained search and Lieb's convex formulation. While the ground-state functional is, as commonly known, a convex function with respect to the density (or, more precisely, the ...
Giarrusso, Sara, Loos, Pierre-François
openaire   +3 more sources

Tunable Intrinsic Plasmons due to Band Inversion in Topological Materials [PDF]

open access: yes, 2017
The band inversion has led to rich physical effects in both topological insulators and topological semimetals. It has been found that the inverted band structure with the Mexican-hat dispersion could enhance the interband correlation leading to a strong ...
Xiao, Di   +3 more
core   +2 more sources

Application of equivalent non-Gaussian excitation method for systems subjected to non-Gaussian random excitation with asymmetric probability distribution

open access: yesNihon Kikai Gakkai ronbunshu, 2015
This paper presents an application of equivalent non-Gaussian excitation method for the response analysis of systems subjected to non-Gaussian random excitation with an asymmetric probability distribution. The non-Gaussian excitation is prescribed by the
Takahiro TSUCHIDA   +2 more
doaj   +1 more source

Scalable high-repetition-rate sub-half-cycle terahertz pulses from spatially indirect interband transitions

open access: yesLight: Science & Applications, 2022
We generate extremely asymmetric sub-half-cycle terahertz waveforms with scalable field strengths at megahertz pulse-repetition rates via ultrafast excitation of spatially indirect interband transitions in tailored quantum well heterostructures.
Christian Meineke   +13 more
doaj   +1 more source

Chaos-assisted emission from asymmetric resonant cavity microlasers [PDF]

open access: yes, 2011
We study emission from quasi-one-dimensional modes of an asymmetric resonant cavity that are associated with a stable periodic ray orbit confined inside the cavity by total internal reflection.
A. E. Siegman   +11 more
core   +3 more sources

Asymmetric interface excited chirality and its applications in reconfiguration

open access: yesOptics Express, 2022
In this paper, a chiral excitation method based on the asymmetric interface condition is proposed. The chiral characteristics of the metamaterials are affected by the difference in the environmental parameters of the front and rear surfaces. Thus, the device can achieve functional reconfiguration and two applications based on this mechanism are ...
Yanni Lin   +6 more
openaire   +2 more sources

Mass-asymmetric fission in the 40ca+142Nd reaction

open access: yesEPJ Web of Conferences, 2016
Shell effects play a major role in fission. Mass-asymmetric fission observed in the spontaneous and low energy fission of actinide nuclei was explained by incorporating the fragment shell properties in liquid drop model.
Prasad E.   +17 more
doaj   +1 more source

Parametric Excitation with an Asymmetric Characteristic in a Self-exciting System

open access: yesBulletin of JSME, 1986
Behaviors of a self-exciting system of van der Pol type subjected to a parametric excitation are investigated. In the present paper the parametric excitation is expressed by the product of a nonlinear function of deflection with an asymmetric characteristic and a periodic function of time.
Sumio YANO   +2 more
openaire   +2 more sources

Asymmetric dual-grating gates graphene FET for detection of terahertz radiations

open access: yesAPL Photonics, 2020
A graphene-based field-effect-transistor with asymmetric dual-grating gates was fabricated and characterized under excitation of terahertz radiation at two frequencies: 0.15 THz and 0.3 THz.
J. A. Delgado-Notario   +7 more
doaj   +1 more source

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