Charge migration induced by attosecond pulses in bio-relevant molecules

Francesca Calegari, Andrea Trabattoni, Alicia Palacios, David Ayuso, Mattea C. Castrovilli, Jason B. Greenwood, Piero Decleva, Fernando Martín, Mauro Nisoli

Research output: Contribution to journalArticlepeer-review

47 Citations (Scopus)
206 Downloads (Pure)

Abstract

After sudden ionization of a large molecule, the positive charge can migrate throughout the system on a sub-femtosecond time scale, purely guided by electronic coherences. The possibility to actively explore the role of the electron dynamics in the photo-chemistry of bio-relevant molecules is of fundamental interest for understanding, and perhaps ultimately controlling, the processes leading to damage, mutation and, more generally, to the alteration of the biological functions of the macromolecule. Attosecond laser sources can provide the extreme time resolution required to follow this ultrafast charge flow. In this review we will present recent advances in attosecond molecular science: after a brief description of the results obtained for small molecules, recent experimental and theoretical findings on charge migration in bio-relevant molecules will be discussed.

Original languageEnglish
Article number142001
Number of pages25
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume49
Issue number14
DOIs
Publication statusPublished - 24 Jun 2016

Keywords

  • attosecond pulses
  • biomolecules
  • charge migration

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics

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