Searching for New Physics at the Quantum Technology Frontier
HPV G5
ETH Zurich
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Speakers: Daniel Kienzler (ETH Zurich, Institute for Quantum Electronics ), Paolo Crivelli (ETH Zurich, Institute for Particle Physics)
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Convener: Paolo Crivelli (ETH Zurich, Institute for Particle Physics)
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9:00 AM
Searches for Dark Matter with Atoms and Optics: Varying Fundamental “Constants” (Zoom/remote)¶ 45m HPV G5
HPV G5
ETH Zurich
Robert-Gnehm-Weg 15 8093 Zürich SwitzerlandSpeaker: Prof. Yevgeny Stadnik (University of Sidney) -
9:45 AM
Speaker: Prof. Yonit Hochberg (Hebrew University of Jerusalem)
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11:00 AM
Z'nüni 30m HPV G5
HPV G5
ETH Zurich
Robert-Gnehm-Weg 15 8093 Zürich Switzerland -
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12:30 PM
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11:00 AM
Rodrigo Rosa-Medina, Francesco Ferri, Fabian Finger, Nicola Reiter, Tobias Donner, Tilman Esslinger
Institute for Quantum Electronics, ETH ZurichUltracold atoms coupled to high-finesse optical resonators are a versatile platform to simulate solid-state quantum systems and to explore out-of-equilibrium scenarios beyond conventional materials [1]. This is due to the high degree of experimental control and access. In particular, long-range interactions between the atoms are engineered by scattering of photons from tailored laser drives, while cavity leakage facilitates real-time access to the dynamics of these open quantum system.
In this talk, I will introduce the main concepts of this experimental platform [2]. As an illustrative example, I report on the experimental realization of dynamical tunneling in a synthetic lattice geometry [3]. Our implementation relies on a spinor Bose-Einstein condensate (BEC) coupled to the cavity and driven by two transverse laser fields. This induces superradiant Raman scattering with the photons imparting recoil momenta on the BEC, which we interpret as cavity-assisted hopping in a momentum space lattice. As the cavity field depends on the local density configuration, the tunneling rate evolves dynamically with the atomic state. By leveraging on the cavity leakage, we measure the emerging currents in real-time and non-destructively.
Very recently, we extended our experiments to a far off-resonant regime in order mitigate non-Hermitian processes. There, we observe the formation of correlated spin-pairs via 4-photon Raman processes, which are ejected out of the BEC at opposite momenta. Our results provide prospects to implement dynamical gauge fields and time reversal protocols to detect scrambling dynamics far from equilibrium.[1] Mivehvar F., Piazza F., Donner T. , Ritsch H. (2021). Advances in Physics, 70:1, 1-153
[2] Ferri, F., Rosa-Medina, R., Finger, F., Dogra, N., Soriente, M., Zilberberg, O., Donner, T., Esslinger, T. (2021). PRX 11, 041046
[3] Rosa-Medina, R., Ferri, F., Finger, F., Dogra, N., Kroeger, K., Lin, R., Chitra, R., Donner, T., Esslinger, T. (2021). arXiv:2108.11888Speaker: Mr Rodrigo Felipe Rosa-Medina -
11:30 AM
Speaker: Prof. Florian Piegsa (University of Bern )
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12:00 PM
Speaker: Dr Mudit Sinhal (University of Basel)
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Lunch 1h 30m Bellavista
Bellavista
Hönggerbergring 47 8093 Zürich -
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3:30 PM
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2:00 PM
Exploring the structure of vacuum : measuring vacuum fluctuation correlations outside the light cone¶ 30mSpeaker: Ms Francesca Fabiana Settembrini (ETH Zurich)
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2:30 PM
Speaker: Gianluca Janka (ETHZ)
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Establishing a metrology network to disseminate high accuracy optical frequencies through the Swiss academic fibre ntework¶ 30mSpeaker: Dominik Husmann (METAS)
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4:00 PM
Z'vieri 30m HPV G5
HPV G5
ETH Zurich
Robert-Gnehm-Weg 15 8093 Zürich Switzerland -
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5:30 PM
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4:00 PM
Speaker: Mr Nick Sauerwein (EPFL )
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4:30 PM
Speaker: Prof. Anna Soter (ETH Zurich)
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5:00 PM
Speaker: Mr Vasilis Belis (ETH Zurich)
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7:00 PM
Apero, passionate discussions session 1h 30m Alumi lounge
Alumi lounge
Stefano-Franscini-Platz 5 8093 Zürich
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8:45 AM
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Speaker: Dr Georg Bison (PSI )
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Speaker: Ms Maria Luisa Mattana (ETH Zurich)
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Speaker: Prof. Jonathan Home (ETH Zurich)
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11:00 AM
Z'nüni 30m HPV G5
HPV G5
ETH Zurich
Robert-Gnehm-Weg 15 8093 Zürich Switzerland -
11:00 AM
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12:30 PM
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11:00 AM
Speaker: Prof. Philipp Treutlein (University of Basel )
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Speaker: Mr Simon Scheidegger (ETH Zurich)
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Speaker: Prof. Julian Sonner (University of Geneva)
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Lunch 1h 30m Bellavista
Bellavista
Hönggerbergring 47 8093 Zürich -
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3:30 PM
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2:00 PM
Speaker: Prof. Joerg Jaeckel (University of Heidelberg )
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2:50 PM
Speaker: Dr Damian Goeldi (ETH Zurich)
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3:10 PM
Speaker: Mr Duarte Pais (PSI )
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4:00 PM
Z'vieri 30m HPV G5
HPV G5
ETH Zurich
Robert-Gnehm-Weg 15 8093 Zürich Switzerland -
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5:40 PM
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4:00 PM
Speaker: Dr Nils Engelsen
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4:30 PM
Quantum cascade laser stabilization and optimized coating solutions for mid-infrared precision spectroscopy¶ 20mSpeaker: Kenichi Komagata
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4:50 PM
Intra-oscillator high harmonic generation inside an ultrafast thin-disk laser – a single-stage, MHz-repetition-rate XUV source¶ 20mSpeaker: Julian Fischer
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5:10 PM
Speaker: Mr Nick Schwegler
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