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Imaging electronic quantum motion with light.

ABSTRACT: Imaging the quantum motion of electrons not only in real-time, but also in real-space is essential to understand for example bond breaking and formation in molecules, and charge migration in peptides and biological systems. Time-resolved imaging interrogates the unfolding electronic motion in such systems. We find that scattering patterns, obtained by X-ray time-resolved imaging from an electronic wavepacket, encode spatial and temporal correlations that deviate substantially from the common notion of the instantaneous electronic density as the key quantity being probed. Surprisingly, the patterns provide an unusually visual manifestation of the quantum nature of light. This quantum nature becomes central only for non-stationary electronic states and has profound consequences for time-resolved imaging.

SUBMITTER: Dixit G

PROVIDER: S-EPMC3406851 | biostudies-other | 2012 Jul

REPOSITORIES: biostudies-other

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Imaging electronic quantum motion with light.

Dixit Gopal G Vendrell Oriol O Santra Robin R

Proceedings of the National Academy of Sciences of the United States of America 20120702 29

Imaging the quantum motion of electrons not only in real-time, but also in real-space is essential to understand for example bond breaking and formation in molecules, and charge migration in peptides and biological systems. Time-resolved imaging interrogates the unfolding electronic motion in such systems. We find that scattering patterns, obtained by X-ray time-resolved imaging from an electronic wavepacket, encode spatial and temporal correlations that deviate substantially from the common not ...[more]

PMID: 22753505

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