Neuigkeiten aus dem Departement

Hallo Quanten! James Wootton entwickelt Spiele-App mit IBM

Quantencomputer besitzen eine Aura des Mystischen, nicht Verstehbaren. Das Spiel «Hello Quantum» soll das ändern. Der Quantenphysiker James Wootton von der Universität Basel hat diese App gemeinsam mit IBM entwickelt.

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Startup Qnami wins Venture Kick finals

The young startup of the University of Basel, Qnami, is the winner of the Venture Kick prize worth 130’000 Swiss Francs. Qnami develops precise and highly sensitive quantum sensors that provide images in nanometer resolution.

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PhD Award for Daniel Riedel

Dr. Daniel Riedel, Postdoc in the team of Professor Richard Warburton and PhD student in the SNI’s PhD School until December 2017, received the Swiss Nanotechnology PhD Prize 2018 sponsored by the Hightech Zentrum Aargau. He received the award for his publication in Physical Review X about the improvement of the quality of photons generated by a quantum system.

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Recording the birth and death of a single phonon

When light interacts with a crystal or a molecule, it can transfer energy to and from microscopic vibrations of their constituent atoms. The total energy is conserved, so that the difference in energy between the incoming and outgoing light equals the vibrational energy deposited in or recovered from the material. Physicists in Basel and Lausanne have developed a new technique to measure in real time the creation and destruction of individual quanta of vibrational energy (phonons) using ultra-short laser pulses and single photon detectors. They recorded the birth and death of single phonons in diamond and their technique can be applied to many different Raman active vibrational modes opening the way for detecting exotic vibrational quantum states such as entangled states where energy is delocalised over several vibrational modes. These results have been published in Physical Review Letters and selected as an Editor’s suggestion.

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A Review on macroscopic quantum states appears in Rev. Mod. Phys. and makes the cover...

Quantum theory is by far our best description of the microscopic world. Surprisingly, there is nothing in the theory preventing macroscopic systems to be in quantum states. In principle, a cat could be dead and alive at the same time. A team of researchers around Nicolas Sangouard, in collaboration with colleagues from Innsbruck and Geneva, have written a review article presenting recent results on the difficulties and prospects of creating, maintaining, and detecting macroscopic quantum states. This review, which outlines the role of macroscopic quantum states in foundational questions as well as practical applications, has been published in the prestigious journal Reviews of Modern Physics and has been chosen for the cover of the next issue.

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Roland Buser erhält den diesjährigen Kulturpreises des Kantons Baselland!

Der Astronom Prof. Dr. Roland Buser von der Universität Basel hat den Kulturpreis 2018 des Kantons Basel-Landschaft erhalten. Die mit 25‘000 Franken dotierte Auszeichnung wurde dem emeritierten Professor am Mittwochabend an einer Feier in Laufen überreicht.

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Einzelne Fremdatome in Graphen nachweisbar

Einem Team mit Physikern der Universität Basel ist es gelungen, einzelne Fremdatome in Graphenbändern mithilfe der Rasterkraftmikroskopie eindeutig abzubilden. Aufgrund der gemessenen Kräfte in dem zweidimensionalen Kohlenstoffgitter des Graphens konnten sie erstmals Bor- und Stickstoff identifizieren, wie die Forscher in der Fachzeitschrift Science Advances berichten.

 

 

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Christan Schönenberger gewinnt zweiten ERC Advanced Grant "Engineered topological superconductivity in van der Waals Heterostructures"!

Christian Schönenberger erhält nach 2012 bereits zum zweiten Mal einen ERC Advanced Grant. Sein Forschungsprojekt «Engineered Topological Superconductivity in van der Waals Heterostructures» untersucht die Supraleitfähigkeit von van der Waals-Heterostrukturen.

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New scalable platform for III-V Nanowires

In this Letter, we report gold-free templated growth of III-V NWs by molecular beam epitaxy using an approach that enables patternable and highly regular branched NW arrays on a far greater scale than what has been reported thus far. Our approach relies on the lattice-mismatched growth of InAs or other III-V semiconductors on top of defect-free GaAs nanomembranes (NMs) yielding laterally-oriented, low-defect InAs and InGaAs NWs. This system provides a new platform for interconnected nanowire networks of interest for topological Qubits based on Majorana fermions. Published in NanoLetters.

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