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physics.atom-ph2022★ 12 cited
Symmetry-induced decoherence-free subspaces
Jonathan Dubois, Ulf Saalmann, Jan Michael Rost
Preservation of coherence is a fundamental yet subtle phenomenon in open systems. We uncover its relation to symmetries respected by the system Hamiltonian and its coupling to the…
physics.atom-ph2022★ 7 cited
Enhanced high-order harmonics through periodicity breaks: from backscattering to impurity states
Chuan Yu, Ulf Saalmann, Jan M. Rost
Backscattering of delocalized electrons has been recently established [Phys. Rev. A 105, L041101 (2022)] as a mechanism to enhance high-order harmonic generation (HHG) in periodic…