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July 2, 2024

Repelling – and still holding together

How can a structure hold together when its individual components repel each other ? An international research team has answered this question demonstrating an example of such a highly excited exotic quantum state of the matter. Researchers from the universities of Geneva, Augsburg, Bonn and...

April 9, 2024

Dimensionality Revealed

An international research team from Innsbruck and Geneva has, for the first time, probed the dimensional crossover for ultracold quantum matter. In the regime between one and two dimensions, the quantum particles perceive their world as being 1D or 2D depending on the length scale on which they...

February 15, 2024

Compression may cool

An international research team from Innsbruck and Geneva has developed a new thermometry method to measure temperatures for low-dimensional quantum gases. With this method it was found that compressing a gas may lead to cooling. The results on this counterintuitive phenomenon have just been...

July 28, 2023

A laser light bends the motion of atoms

An international research team explains the microscopic origin of the Hall effect: the study, published in Science, is coordinated by the University of Florence in collaboration with LENS, CNR and the universities of Geneva and Grenoble.Bending the motion of atoms with laser light allowed to solve ...

January 8, 2021

Scrambled supersolids

Supersolids are fluid and solid at the same time. Physicists from Innsbruck and Geneva have for the first time investigated what happens when such a state is brought out of balance. They discovered a soft form of a solid of high interest for science. As the researchers led by Francesca Ferlaino...

September 10, 2018

Ultracold atoms used to verify 1963 prediction about 1D electrons

Physicists from Rice University and the University of Geneva have verified a key prediction from a 55-year-old theory about one-dimensional electronics that is increasingly relevant thanks to Silicon Valley’s inexorable quest for miniaturization.

May 7, 2018

The apparent inner calm of quantum materials

Transitions between different phases of matter are part of our day-to-day lives: when water freezes, for example, it passes from liquid to solid state. Some of these transitions may be of a different kind, resulting from so-called topological excitations that force all the particles to act in...

April 13, 2018

When superconductivity disappears in the core of a quantum tube

Predicting the behaviour of electrons in a material is not easily done. Physicists from the University of Geneva (UNIGE), ETH Zurich and EPFL replaced the electrons with ultra-cold neutral lithium atoms that they had circulated in a one-dimensional quantum tube. The scientists were then able to...

October 11, 2016

Topological properties of exotic matter – Interview with Thierry Giamarchi, CQFD, RTS la 1ère

Three British physicists have just won the 2016 Nobel Prize in Physics. These researchers have combined the beauty of mathematics with some very unusual physics and, in doing so, have theorized a new way of describing nature.

December 17, 2015

A step towards quantum electronics

Work of physicists at the University of Geneva (UNIGE), Switzerland, and the Swiss Federal Institute of Technology in Zurich (ETHZ), in which they connected two materials with unusual quantum-mechanical properties through a quantum constriction, could open up a novel path towards both a deeper...

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