Quantum Quenching of Radiation Losses in Short Laser Pulses.
Accelerated charges radiate, and therefore must lose energy. The impact of this energy loss on particle motion, called radiation reaction, becomes significant in intense-laser matter interactions, where it can reduce collision energies, hinder particle acceleration schemes, and is seemingly unavoidable. Here we show that this common belief breaks down in short laser pulses, and that energy losses and radiation reaction can be controlled and effectively switched off by appropriate tuning of the pulse length. This "quenching" of emission is impossible in classical physics, but becomes possible in QED due to the discrete nature of quantum emissions.
Department of Physics, Chalmers University of Technology, SE-41296 Gothenburg, Sweden.
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Harvey
Department of Physics, Chalmers University of Technology, SE-41296 Gothenburg, Sweden.|Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod 603950, Russia.|Lobachevsky State University of Nizhni Novgorod, Nizhny Novgorod 603950, Russia.
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Gonoskov
Department of Physics, Chalmers University of Technology, SE-41296 Gothenburg, Sweden.|Centre for Mathematical Sciences, Plymouth University, PL4 8AA, United Kingdom.
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Ilderton
Department of Physics, Chalmers University of Technology, SE-41296 Gothenburg, Sweden.
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Marklund