scholarly journals Transient effects and reconstruction of the energy spectra in the time evolution of transmitted Gaussian wave packets

2010 ◽  
Vol 43 (18) ◽  
pp. 185301 ◽  
Author(s):  
Sergio Cordero ◽  
Gastón García-Calderón
Keyword(s):  
Time Evolution ◽  
Wave Packets ◽  
Energy Spectra ◽  
Transient Effects ◽  
Gaussian Wave Packets

Propagation properties of Airy Ince–Gaussian wave packets in gradient-index media

2019 ◽  
Vol 16 (2) ◽  
pp. 026004 ◽  
Author(s):  
Xi Peng ◽  
Yingji He ◽  
Dongmei Deng ◽  
Yunli Qiu ◽  
Xing Zhu ◽  
...  
Keyword(s):  
Wave Packets ◽  
Gradient Index ◽  
Propagation Properties ◽  
Gaussian Wave Packets

scholarly journals Mono-energetic ions from collisionless expansion of spherical multi-species clusters

2009 ◽  
Vol 27 (2) ◽  
pp. 321-326 ◽  
Author(s):  
K.I. Popov ◽  
V.Yu. Bychenkov ◽  
W. Rozmus ◽  
V.F. Kovalev ◽  
R.D. Sydora
Keyword(s):  
Electron Temperature ◽  
Time Evolution ◽  
Hot Electrons ◽  
Ion Concentration ◽  
Energy Spectra ◽  
Plasma Expansion ◽  
Energetic Ions ◽  
Spherical Cluster ◽  
Light Ions ◽  
Unified Description

AbstractKinetic collisionless expansion of a spherical cluster composed of light and heavy cold ions and hot electrons is studied for arbitrary electron temperature. A wide set of regimes of plasma expansion, from nearly quasi-neutral to Coulomb explosion, is described from a unified description. The time evolution of the velocity, density, and energy spectra for accelerated ions is studied. The study demonstrates that an optimum light ion concentration from few percent to few tens percent, depending on the electron temperature, leads to a quasi-monoenergetic spectra with numbers as high as 70–80% of the total number of light ions.

scholarly journals Spin-Orbit Entanglement in Time Evolution of Radial Wave Packets in Hydrogenic Systems

2004 ◽  
Vol 11 (04) ◽  
pp. 401-409
Author(s):  
Marcin Turek ◽  
Piotr Rozmej
Keyword(s):  
Wave Packet ◽  
Time Evolution ◽  
Time Scale ◽  
Degrees Of Freedom ◽  
Wave Packets ◽  
Characteristic Time Scale ◽  
Radial Wave ◽  
Mean Values ◽  
Breathing Motion ◽  
Wave Packet Revival

Time evolution of radial wave packets built from the eigenstates of Dirac equation for a hydrogenic system is considered. Radial wave packets are constructed from the states of different n quantum numbers and the same lowest angular momentum. In general they exhibit a kind of breathing motion with dispersion and (partial) revivals. Calculations show that for some particular preparations of the wave packet one can observe interesting effects in spin motion, coming from inherent entanglement of spin and orbital degrees of freedom. These effects manifest themselves through some oscillations in the mean values of spin operators and through changes of spatial probability density carried by upper and lower components of the wave function. It is also shown that the characteristic time scale of predicted effects (called T ls ) is much smaller for radial wave packets than in other cases, reaching values comparable to (or even less than) the time scale for the wave packet revival.

Propagation properties of chirped Airy hollow Gaussian wave packets

2019 ◽  
Vol 435 ◽  
pp. 164-172 ◽  
Author(s):  
Shijie Chen ◽  
Xinyi Zheng ◽  
Youwei Zhan ◽  
Shudan Ma ◽  
Dongmei Deng
Keyword(s):  
Wave Packets ◽  
Propagation Properties ◽  
Gaussian Wave Packets

scholarly journals Spatiotemporal Airy Ince–Gaussian wave packets in strongly nonlocal nonlinear media

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Xi Peng ◽  
Jingli Zhuang ◽  
Yulian Peng ◽  
DongDong Li ◽  
Liping Zhang ◽  
...  
Keyword(s):  
Wave Packets ◽  
Nonlinear Media ◽  
Nonlocal Nonlinear Media ◽  
Strongly Nonlocal Nonlinear Media ◽  
Nonlocal Nonlinear ◽  
Gaussian Wave Packets
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