Pulse-Duration-Sensitive High Harmonics and Attosecond Locally-Chiral Light from a Chiral Topological Weyl Semimetal

TDDFT simulations of RhSi show laser pulse duration extends HHG cutoff energies via 'excited ladder electrons,' while the chiral crystal structure maps into attosecond locally-chiral light with tunable instantaneous torsion on ~300 as timescales.

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