Bremsstrahlung radiation by a tunneling particle

Abstract

We study the bremsstrahlung radiation of a tunneling charged particle in a time-dependent picture. In particular, we treat the case of bremsstrahlung during alpha-decay, which has been suggested as a promissing tool to investigate the problem of tunneling times. We show deviations of the numerical results from the semiclassical estimates. A standard assumption of a preformed particle inside the well leads to sharp high-frequency lines in the bremsstrahlung emission. These lines correspond to "quantum beats" of the internal part of the wavefunction during tunneling arising from the interference of the neighboring resonances in the well.

4 pages, 4 figures

References in corpus (2)

• Bremsstrahlung in Alpha-Decay
• Bremsstrahlung in $\alpha$ Decay

Cited by in corpus (12)

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• Quasiclassical description of bremsstrahlung accompanying alpha decay including quadrupole radiation
• Techniques to treat the continuum applied to electromagnetictransitions in ${}^8$Be
• Tunneling of atoms, nuclei and molecules
• Tunneling times and bremsstrahlung in alpha decay