The spreading of free wave packets and the entropy of position

1981 ◽  
Vol 22 (2) ◽  
pp. 303-305 ◽  
Author(s):  
Marian Grabowski
Keyword(s):  
Wave Packets ◽  
Free Wave

Dispersion-free wave packets and feedback solitonic motion in controlled quantum dynamics

1997 ◽  
Vol 55 (1) ◽  
pp. 673-677 ◽  
Author(s):  
Metin Demiralp ◽  
Herschel Rabitz
Keyword(s):  
Quantum Dynamics ◽  
Wave Packets ◽  
Free Wave

scholarly journals The evolution of free wave packets

2008 ◽  
Vol 76 (12) ◽  
pp. 1102-1107 ◽  
Author(s):  
Mark Andrews
Keyword(s):  
Wave Packets ◽  
Free Wave

Synthesis of Broadband Space-Time Diffraction-Free Wave Packets Using Transmissive Phase Plates

2018 ◽  
Author(s):  
Murat Yessenov ◽  
H. Esat Kondakci ◽  
Monjurul Meem ◽  
Danielle Reyes ◽  
Daniel Thul ◽  
...  
Keyword(s):  
Wave Packets ◽  
Space Time ◽  
Free Wave ◽  
Phase Plates

Interferometric (Fourier-Spectroscopic) Measurement of Electron Energy Distributions

1990 ◽  
Vol 48 (2) ◽  
pp. 110-111 ◽  
Author(s):  
F. Hasselbach ◽  
A. Schäfer
Keyword(s):  
Group Velocity ◽  
Wave Packets ◽  
Index Of Refraction ◽  
Electron Wave ◽  
Fringe Contrast ◽  
Faraday Cage ◽  
Optical Index ◽  
Wien Filter ◽  
Coherent Wave ◽  
Electric And Magnetic Fields

Möllenstedt and Wohland proposed in 1980 two methods for measuring the coherence lengths of electron wave packets interferometrically by observing interference fringe contrast in dependence on the longitudinal shift of the wave packets. In both cases an electron beam is split by an electron optical biprism into two coherent wave packets, and subsequently both packets travel part of their way to the interference plane in regions of different electric potential, either in a Faraday cage (Fig. 1a) or in a Wien filter (crossed electric and magnetic fields, Fig. 1b). In the Faraday cage the phase and group velocity of the upper beam (Fig.1a) is retarded or accelerated according to the cage potential. In the Wien filter the group velocity of both beams varies with its excitation while the phase velocity remains unchanged. The phase of the electron wave is not affected at all in the compensated state of the Wien filter since the electron optical index of refraction in this state equals 1 inside and outside of the Wien filter.

Thermal self-action of acoustic wave packets in a liquid

1995 ◽  
Vol 165 (10) ◽  
pp. 1145 ◽  
Author(s):  
F.V. Bunkin ◽  
Gennadii A. Lyakhov ◽  
K.F. Shipilov
Keyword(s):  
Acoustic Wave ◽  
Wave Packets
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