Synthesis of Directional Wave Packets from Shot Records
Sign Up to like & getrecommendations! Published in 2019 at "Pure and Applied Geophysics"
DOI: 10.1007/s00024-019-02208-1
Abstract: Using directional waves is advantageous in subsurface seismic imaging because such waves are localized in space and time. Hence, the recorded data contain information mostly about the illuminated targets. However, most seismic field data are… read more here.
Keywords: wave packet; shot records; directional wave; point sources ... See more keywords
Wave packet treatment of neutrino flavor oscillations in various spacetimes
Sign Up to like & getrecommendations! Published in 2021 at "General Relativity and Gravitation"
DOI: 10.1007/s10714-021-02872-6
Abstract: We study the effect of gravity on neutrino flavor oscillations when each mass eigenstate is described by a wave packet instead of a plane wave. Two different approaches for implementing the wave packet formalism in… read more here.
Keywords: flavor oscillations; neutrino flavor; wave packet;
Approximation of semiclassical expectation values by symplectic Gaussian wave packet dynamics
Sign Up to like & getrecommendations! Published in 2021 at "Letters in Mathematical Physics"
DOI: 10.1007/s11005-021-01462-6
Abstract: This paper concerns an approximation of the expectation values of the position and momentum of the solution to the semiclassical Schr\"odinger equation with a Gaussian as the initial condition. Of particular interest is the approximation… read more here.
Keywords: wave packet; approximation; expectation values; expectation ... See more keywords
Quantum wave packet dynamics of the H + Li2 reaction at state-to-state level of theory
Sign Up to like & getrecommendations! Published in 2017 at "Computational and Theoretical Chemistry"
DOI: 10.1016/j.comptc.2017.06.026
Abstract: Abstract The time-dependent wave packet method with a second order split operator is employed to study the state-to-state resolved reaction dynamics of the H + Li 2 system. The dynamics properties, such as reaction probability, integral cross-section,… read more here.
Keywords: state; wave packet; state state; quantum wave ... See more keywords
Vibrational and rotational excitation studies of the reaction Au+ + H2 → AuH+ + H using the time-dependent wave packet approach
Sign Up to like & getrecommendations! Published in 2018 at "Computational and Theoretical Chemistry"
DOI: 10.1016/j.comptc.2018.06.015
Abstract: Abstract State-to-state dynamics calculations of the reaction Au+ + H2 with the initial states (v, j) = (0, 0), (0, 1), and (1, 0) were performed using the time-dependent wave packet method in the collision energy range from 2.0… read more here.
Keywords: wave packet; using time; dependent wave; time dependent ... See more keywords
Quasiclassical trajectory and wave packet calculations for D + CaCl(X2Σ+; vi = 0, ji = 0) → DCl + Ca(1S) reaction
Sign Up to like & getrecommendations! Published in 2017 at "Chemical Physics Letters"
DOI: 10.1016/j.cplett.2016.11.046
Abstract: Abstract A computational study for the title reaction is carried out employing recent ab initio potential energy surface. J = 0 reaction probability is obtained using both quasiclassical trajectory (QCT) and wave packet methods. The total… read more here.
Keywords: quasiclassical trajectory; reaction; wave packet; title reaction ... See more keywords
Strong field dissociative ionization of the D2+: Nuclear wave packet analysis
Sign Up to like & getrecommendations! Published in 2017 at "Chemical Physics Letters"
DOI: 10.1016/j.cplett.2017.01.067
Abstract: Abstract Theoretical ab initio investigation of strong field dissociative ionization of the D 2 + molecule in the multiphoton regime is reported. The dynamics is initiated by ultrashort laser pulses for fixed molecular axis orientations.… read more here.
Keywords: wave packet; strong field; nuclear wave; field dissociative ... See more keywords
A new fractional wave packet transform
Sign Up to like & getrecommendations! Published in 2021 at "Optik"
DOI: 10.1016/j.ijleo.2021.166357
Abstract: Abstract The fractional Fourier transform (FRFT) has been shown to be powerful tool for optics and signal processing. However, it fails in locating the fractional domain frequency contents which is required in some applications. In… read more here.
Keywords: new fractional; fractional wave; packet transform; wave packet ... See more keywords
Wave packet dynamics in slowly modulated photonic graphene
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Differential Equations"
DOI: 10.1016/j.jde.2019.06.006
Abstract: Mathematical analysis on electromagnetic waves in photonic graphene, a photonic topological material which has a honeycomb structure, is one of the most important current research topics. By modulating the honeycomb structure, numerous topological phenomena have… read more here.
Keywords: photonic graphene; dynamics slowly; packet dynamics; wave packet ... See more keywords
Dissipation and dynamics in ultrafast intersystem crossings.
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Chemical Physics"
DOI: 10.1063/1.5125005
Abstract: The effects of dynamics and dissipation on ultrafast intersystem crossings are studied for a dissipative two-level system coupled to a local vibronic mode. A method of amplitude damping of the wave packet is presented that… read more here.
Keywords: ultrafast intersystem; wave packet; population transfer;
Wave-packet behaviors of the defocusing nonlinear Schrödinger equation based on the modified physics-informed neural networks.
Sign Up to like & getrecommendations! Published in 2021 at "Chaos"
DOI: 10.1063/5.0067260
Abstract: Investigated in this paper is the defocusing nonlinear Schrödinger (NLS) equation, which is used for describing the wave-packet dynamics in certain weakly nonlinear media. With the physics-informed neural networks (PINNs), we modify the corresponding loss… read more here.
Keywords: loss function; wave packet; loss; physics ... See more keywords