Exact tree-level MHV graviton scattering amplitudes at arbitrary multiplicity are obtained on self-dual Taub-NUT backgrounds using twistor theory, including spin via Newman-Janis shift, with undeformed celestial symmetries.
Seipt, arXiv preprint arXiv:1701.03692 (2017)
2 Pith papers cite this work. Polarity classification is still indexing.
abstract
The collision of ultra-relativistic electron beams with intense short laser pulses makes possible to study QED in the high-intensity regime. Present day high-intensity lasers mostly operate with short pulse durations of several tens of femtoseconds, i.e. only a few optical cycles. A profound theoretical understanding of short pulse effects is important not only for studying fundamental aspects of high-intensity laser matter interaction, but also for applications as novel X- and gamma-ray radiation sources. In this article we give a brief overview of the theory of high-intensity QED with focus on effects due to the short pulse duration. The non-linear spectral broadening in non-linear Compton scattering due to the short pulse duration and its compensation is discussed.
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Momentum correlations imposed on Volkov states create wavepackets whose probability-density peak propagates at an arbitrary velocity independent of field amplitude and expectation-value velocity.
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Graviton scattering on self-dual black holes
Exact tree-level MHV graviton scattering amplitudes at arbitrary multiplicity are obtained on self-dual Taub-NUT backgrounds using twistor theory, including spin via Newman-Janis shift, with undeformed celestial symmetries.
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Arbitrary-Velocity Volkov Wavepackets
Momentum correlations imposed on Volkov states create wavepackets whose probability-density peak propagates at an arbitrary velocity independent of field amplitude and expectation-value velocity.