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On 2 and 3 September up to 30,000 visitors sought answers to the question: what holds the world together?

CosmoGridV1 is a large lightcone simulation set for map-level, simulation-based cosmological inference with probes of large scale structure. It is designed for practical parameter measurement with Stage-III survey data and Machine Learning inference. It contains 2500 unique cosmological models spanning different combinations of 6 cosmological parameters and is publicly available at www.cosmogrid.ai.

Please join us in welcoming Arne Thomsen as a new PhD Student in the Cosmology Research Group.

Please join us in welcoming Pascal Hitz as a new PhD Student in the Cosmology Research Group.

Please join us in welcoming Silvan Fischbacher as a new PhD Student in the Cosmology Research Group.

Please join us in welcoming Virginia Ajani as a new Postdoc in the Cosmology Research Group.

Please join us in welcoming Sara Aliqolizadehsafari as a new data scientist in the Cosmology Research Group.

Please join us in welcoming Alexander Reeves as a new PhD Student in the Cosmology Research Group.

Please join us in welcoming Marta Spinelli as a new Postdoc in the Cosmology Research Group.

ETH Zurich is participating in two quantum computing projects that are being financed by IARPA, the US research funding agency, with up to 40 million dollars. Both projects aim to connect two error-corrected qubits with one another and thus lay the foundation for future quantum computers.

Quantum mechanics describes the forces that hold the world together on the smallest scale. The theory of relativity explains the world at the cosmic level. The two seem incompatible – and a unifying theory is nowhere in sight.

Daniel Angerhausen believes that fundamental research is essential, especially in the current crisis. Still, he wonders if we shouldn’t extend the idea of sustainability into the infinite reaches of outer space.

Researchers at ETH have developed a technique to cool several nanoparticles simultaneously to temperatures of just a few thousandths of a degree above absolute zero. This new method can be used to study quantum effects of several nanoparticles and to build highly sensitive sensors.

The physics professor Ursula Keller has received the Swiss Science Prize Marcel Benoist for her pioneering work in ultrafast lasers. Her theoretical models and experimental discoveries have repeatedly tested the boundaries of ultrafast laser physics.

What the “Night of Physics” really aims to do is make physics accessible to a broad audience in a way that’s entertaining. This event will be held on 17 June. Klaus Ensslin, Professor of Physics and co-initiator of the event, explains why it’s worth coming along to the Hönggerberg campus.

Researchers at ETH Zurich have succeeded for the first time in trapping excitons - quasiparticles consisting of negatively charged electrons and positively charged holes – in a semiconductor material using controllable electric fields. The new technique is important for creating single photon sources as well as for basic research.  

This year’s ETH award for particularly innovative teaching projects goes to a course that brings physics experiments for students right into their home. The project was up against 24 others competing for the KITE Award 2022.

Aerosols in the atmosphere react to incident sunlight. This light is amplified in the interior of the aerosol droplets and particles, accelerating reactions. ETH researchers have now been able to demonstrate and quantify this effect and recommend factoring it into future climate models.