Results 31 to 40 of about 36,896 (288)

Remarks on Bessel beams, signals and superluminality [PDF]

open access: yes, 2001
We address the question about the velocity of signals carried by Bessel beams wave packets propagating in vacuum and having well defined wavefronts in time.
Lunardi, J. T.
core   +2 more sources

Shape-Preserving Accelerating Electromagnetic Wave Packets in Curved Space

open access: yesPhysical Review X, 2014
We present shape-preserving spatially accelerating electromagnetic wave packets in curved space: wave packets propagating along nongeodesic trajectories while periodically recovering their structure.
Rivka Bekenstein   +3 more
doaj   +1 more source

Simulating Meson Scattering on Spin Quantum Simulators [PDF]

open access: yesQuantum
Studying high-energy collisions of composite particles, such as hadrons and nuclei, is an outstanding goal for quantum simulators. However, preparation of hadronic wave packets has posed a significant challenge, due to the complexity of hadrons and the ...
Elizabeth R. Bennewitz   +13 more
doaj   +1 more source

Generation of guided space-time wave packets using multilevel indirect photonic transitions in integrated photonics

open access: yesPhysical Review Research, 2021
We propose an integrated photonic approach to generating guided space-time wave packets in a conventional multimode waveguide using multilevel interband photonic transitions.
Cheng Guo, Shanhui Fan
doaj   +1 more source

Unusual broadening of wave packets on lattices

open access: yes, 2019
The broadening of one-dimensional Gaussian wave packets is presented in all textbooks on quantum mechanics. It is used to elucidate Heisenberg's uncertainty relation.
Schönhammer, K.
core   +1 more source

The pump–probe coupling of matter wave packets to remote lattice states

open access: yesNew Journal of Physics, 2012
The coherent manipulation of wave packets is an important tool in many areas of physics. We demonstrate the experimental realization of quasi-free wave packets of ultra-cold atoms bound by an external harmonic trap.
Jacob F Sherson   +6 more
doaj   +1 more source

Fictitious time wave packet dynamics: I. Nondispersive wave packets in the quantum Coulomb problem

open access: yes, 2009
Nondispersive wave packets in a fictitious time variable are calculated analytically for the field-free hydrogen atom. As is well known by means of the Kustaanheimo-Stiefel transformation the Coulomb problem can be converted into that of a four ...
Fabčič, T., Main, J., Wunner, G.
core   +1 more source

Fermionic wave packet scattering: a quantum computing approach [PDF]

open access: yesQuantum
Quantum computing provides a novel avenue towards simulating dynamical phenomena, and, in particular, scattering processes relevant for exploring the structure of matter.
Yahui Chai   +6 more
doaj   +1 more source

Three-Dimensional Exploding Light Wave Packets

open access: yesPhotonics
We describe a family of paraxial and quasi-monochromatic optical wave packets with finite energy and smoothly shaped amplitude in space and time that develops a singularity in the intensity when spatio-temporally focused by imparting a converging ...
Marcos G. Barriopedro   +4 more
doaj   +1 more source

Rossby wave packets in the upper troposphere and their associations with climatological summertime daily precipitation in MLRYR of China

open access: yesAtmospheric Science Letters, 2021
Using the NCEP/NCAR reanalysis and station observations in China during 1979–2018, features of propagation of baroclinic wave packets in the upper troposphere and their relationships with precipitation over the middle and lower reaches of the Yangtze ...
Siyuan Sun, Zhaoyong Guan
doaj   +1 more source

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