Séminaire LCPMR | Sivaram Krishnan "Helium nanodroplets with photon pulses from the X-ray to IR: just two or too-many electrons to explore!

In physics and chemistry we have the immense pleasure of playing in the world of quantum phenomena both in Hilbert and real spaces, in the computer and in the lab. Among these He nanodroplets are a versatile playground especially when they meet with pulses either from  mega-photon sources like free-electron lasers or synchrotrons, or perhaps, table-top  ultrashort laser pulses present a stage for exploring electron dynamics.

We may choose to see them from the perspective of two-electrons-are-too-many to explore and handle examining correlations in them with atomistic precision and detail. Or, we may attempt to image all of them at once.Through the key-hole of our research campaigns we attempt to capture as much as possible of the correlated and collective electron dynamics in photoexcited He nanodroplets, both in their pristine form and when doped with atomic aggregates. Our goal in this talk is to hopefully stimulate ideas for new campaigns which can exploit the unique capabilities offered by advanced photon sources, hopefully in collaborations. Thanks for the synergy between our two nations and their funding agencies, particularly the Indo-French Center for Promotion of Academic Research, or CEFIPRA, we have opportunities to do. This seminar is a forerunner for these ongoing and upcoming activities.