keine vergangenen Seminare
zukünftige Termine
14 May 2024
Physikalisches Kolloquium
Institut für Physik 16:15 Uhr s.t., HS KPH |
Prof. Dr. Jochem Marotzke, Max Planck Institute for Meteorology, Hamburg | |
The cause and the future of climate change | |
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15 May 2024
PRISMA+ Colloquium
Institut für Physik 13:00 Uhr s.t., Lorentz-Raum, 05-127, Staudingerweg 7 |
Prof. Dr. John Bulava, Universität Bochum | |
Novel Methods in Lattice Spectroscopy | |
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16 May 2024
Seminar über Theorie der kondensierten Materie / TRR146 Seminar
F. Schmid / G. Settanni / P. Virnau / L. Stelzl 14:30 Uhr s.t., Minkowski-Raum, 05-119, Staudingerweg 7 |
Sonya Hansen, Flatiron Institute | |
TBA | |
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Seminar über Quanten-, Atom- und Neutronenphysik (QUANTUM)
Institut für Physik 14:00 Uhr s.t., IPH Lorentzraum 05-127 |
Prof. Kenneth R. Brown, Duke University, USA | |
Conical intersections often control the reaction products of photochemical processes and occur when two electronic potential energy surfaces intersect. Theory predicts that the conical intersection will result in a geometric phase for a wavepacket on the ground potential energy surface, and although conical intersections have been observed experimentally, the geometric phase has not been directly observed in a molecular system. Here we use a trapped atomic ion system to perform a quantum simulation of a conical intersection. The ion’s internal state serves as the electronic state, and the motion of the atomic nuclei is encoded into the motion of the ions. The simulated electronic potential is constructed by applying state-dependent optical forces to the ion. We experimentally observe a clear manifestation of the geometric phase using adiabatic state preparation followed by motional state measurement. Our experiment shows the advantage of combining spin and motion degrees for quantum simulation of chemical reactions. We conclude with a discussion of future simulation directions. | |
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