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

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Room: Herbert Walther Lecture Hall

Parity Measurements in Action: Detecting Errors in the Surface Code and Heralding Itinerant Cat States using Superconducting Circuits (Prof.Christopher Eichler)

Parity Measurements in Action: Detecting Errors in the Surface Code and Heralding Itinerant Cat States using Superconducting Circuit
Parity measurements distinguish between quantum states with an even and an odd number of excitations without revealing any additional information about the state. Nondestructive parity detection allows one to project onto highly entangled states and therefore plays a central role in quantum error correction. [more]

Simulating quantum magnetism with quantum dot Arrays (Prof. Lieven Vandersypen)

Simulating quantum magnetism with quantum dot Arrays
Gate-defined quantum dots have recently emerged as an attractive platform for analog quantum simulation. A quantum dot array naturally emulates the extended Fermi-Hubbard model. The energy scales cover the most relevant parts of the phase diagram, with individually tunable hopping energies well below the on-site interaction energies and at the same time far exceeding the thermal energy. In addition, site-specific potential offsets are individually tunable, further extending the range of physical phenomena that can be explored. [more]

The quantum phases of dipolar quantum gases ( Porf. Francesca Ferlaino)

The quantum phases of dipolar quantum gases
Ultracold quantum gases are a powerful platform to address key questions in quantum physics and a powerful resource to realize novel paradigms and novel phases of quantum matter. Moreover, the potential of such systems is becoming ever more enabling as scientists acquire an increasingly fine control over optical manipulation and inter-particle interactions. [more]

From Optical Communications to the Brain: Integrated Photonics on Silicon (Prof. Joyce Poon)

From Optical Communications to the Brain: Integrated Photonics on Silicon
Foundry-manufactured, monolithically integrated multilayer silicon nitride-on-silicon photonic platforms are suitable for large-scale photonic circuits. [more]

Ultracold atoms carrying orbital angular momentum in lattices of rings: topology and quantum magnetism ( Prof. Veronica Ahufinger)

Ultracold atoms carrying orbital angular momentum in lattices of rings: topology and quantum magnetism
In this talk, we discuss the physics of ultracold atoms carrying Orbital Angular Momentum (OAM) in lattices of ring potentials both in the single-particle and in the Mott insulator limits. In the former limit, we find topologically protected edge states. In the latter limit, we show that the system can realize a variety of spin-1/2 models, including the XYZ Heisenberg model with or without external field. [more]
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