Control of Arrival Time using Structured Wave Packets
arXiv:2007.11676 · doi:10.1016/j.physleta.2020.127038
Abstract
Scattering dynamics are examined for Gaussian and non-Gaussian wave packets with identical momentum densities. Average arrival time delays, dwell times, and phase time delays are calculated for wave packets scattering from a square barrier, and it is shown that the non-Gaussian wave packets exhibit different average arrival time delays than the Gaussian wave packets. These differences result from the non-linear terms in the momentum wave function phase of the non-Gaussian wave packets, which alters the self-interaction times of the wave packets. Control of the average arrival time delay can be achieved through adjustment of the momentum wave function phase, independent of wave packet energy and momentum density.
References in corpus (21)
- Self accelerating electron Airy beams
- Electron Beam Spectroscopy for Nanophotonics
- Coherent control of tunneling in a quantum dot molecule
- Tunneling Time in Ultrafast Science is Real and Probabilistic
- Experimental evidence for Wigner's tunneling time
- Quantised orbital angular momentum transfer and magnetic dichroism in the interaction of electron vortices with matter
- Sub-femtosecond determination of transmission delay times for a dielectric mirror (photonic bandgap) as a function of angle of incidence
- Holographic generation of highly twisted electron beams
- Boundaries for efficient use of electron vortex beams to measure magnetic properties
- Strong-field ionization of He by elliptically polarized light in attoclock configuration
- The attoclock and the tunnelling time debate
- Keldysh-Rutherford model for attoclock
- Mapping spin-polarised transitions with atomic resolution
- Direct tunneling delay time measurement in an optical lattice
- Time delay for one-dimensional quantum systems with steplike potentials
- "Superluminal paradox" in wavepacket propagation and its quantum mechanical resolution
- Time of arrival through interacting environments: Tunneling processes
- Forbidden Transitions in a Magneto-Optical Trap
- On causality, apparent 'superluminality' and reshaping in barrier penetration
- Physical mechanism of superluminal traversal time: interference between multiple finite wave packets
- Interference mechanism of seemingly superluminal tunnelling