Colloquia


Colloquia

Due to the current situation (COVID-19), the guest lectures of the MPQ Colloquium will only take place online until further notice. Details on participation will be sent via the mailing lists [wiss-mpq] and [Mpq-colloquium-stream]. Please register using the adjacent link.


Scientific organization of the talks:  Dr. Stephan Dürr and Dr. Thomas Udem

If you wish to view the live stream of the MPQ colloquium, please use the link to subscribe to the corresponding mailing list. Detailed instructions will be sent to all subscribers.

+++ONLINE KOLLOQUIUM+++Driven Quantum Materials (MCQST-Kolloquium) (Prof. Dr. Andrea Cavalleri)

I will discuss how coherent electromagnetic radiation at Tera-Hertz frequencies can be used to drive complex solids periodically, controlling the coupling between their collective excitations. [more]

+++ONLINE KOLLOQUIUM+++ A Fermi gas of molecules with tunable dipolar interactions (MCQST-Kolloquium) (Prof. Dr. Jun Ye)

The advent of a degenerate Fermi gas of polar molecules sets the stage to explore novel many-body physics. We apply a precisely controlled electric field to tune the elastic dipolar interaction by orders of magnitude while suppressing reactive losses. [more]
Double Feature of Dr. Matthew Weidman and M.Sc. Annie Jihyun Park [more]

+++ONLINE KOLLOQUIUM+++ Phase transitions in the complexity of simulating random shallow quantum circuits (MCQST-Kolloquium) (Prof. Aram Harrow)

The appeal of quantum computing is based on the fact that simulating N quantum systems on a classical computer takes time exponential in N. This exponential hardness is known to hold even for shallow quantum circuits, meaning unitary dynamics that run for a constant amount of time. We show that when the quantum circuits are made of random gates on a 2D geometry, they are not always exponentially hard to simulate. [more]
In this talk, I discuss our recent research findings in nano-optics, electromagnetics and acoustics, showing how suitably tailored meta-atoms and arrays of them enable new phenomena to manipulate light, radio-waves and sound. I discuss venues to largely break Lorentz reciprocity and realize isolation without the need of a magnetic bias, based on broken time-reversal symmetry induced by mechanical motion, spatio-temporal modulation and/or nonlinearities. [more]
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