Departement News

A nanoscale balance for individual cells

An interdisciplinary team from the University of Basel, ETH Zurich, and University College London have developed a new method that can be used to analyze individual live mammalian cells within a cell assembly. Based on a system of tiny cantilever probes, the technique records the cell mass over several days in millisecond steps and is accurate to within a few picograms. Using the new technique, the scientists have been able to observe for the first time that the cell mass fluctuates within the space of a few seconds. These findings and the new platform provide fundamental insights into the regulation of cell mass and into how this is disrupted in the event of illness. The study was presented today in the journal Nature.

 

 

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Interview with Friedrich Thielemann on the collision of neutron stars detected by LIGO for the first time

Just als der Basler Astrophysiker Friedrich Thielemann den Wissenstand über die Verschmelzung von Neutronensternen in einem Übersichtsartikel zusammenfasste, konnten Forscher das astronomische Ereignis erstmals beobachten. Im Interview beschreibt er, wie Vorhersagen und Beobachtungen zusammenpassen und weshalb das Ereignis unser Verständnis des Universums verändern wird.

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Quantum sensors decipher magnetic ordering in a new semiconducting material

For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.

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Using mirrors to improve the quality of light particles

Scientists from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute have succeeded in dramatically improving the quality of individual photons generated by a quantum system. The scientists have successfully put a 10-year-old theoretical prediction into practice. With their paper, published recently in Physical Review X, they have taken an important step towards future applications in quantum information technology.

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High-speed quantum memory for photons

Physicists from the University of Basel have developed a memory that can store photons. These

quantum particles travel at the speed of light and are thus suitable for high-speed data transfer.

The researchers were able to store them in an atomic vapor and read them out again later without

altering their quantum mechanical properties too much. This memory technology is simple and

fast and it could find application in a future quantum Internet. The journal Physical Review Letters

has published the results.

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Jelena Klinovaja and Ilaria Zardo receive prestigious EU grants

The European Research Council (ERC) has awarded both professors Jelena Klinovaja and Ilaria Zardo from the Department of Physics at the University of Basel an ERC Starting Grant. The two physicists will receive up to 1.5 million Euros over the course of the next five years for their ambitious research projects.

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Manipulating electron spins without loss of information

Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.

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Coupling a nano-trumpet with a quantum dot enables precise position determination

Scientists from the Swiss Nanoscience Institute and the University of Basel have succeeded in coupling an extremely small quantum dot with 1,000 times larger trumpet-shaped nanowire. The movement of the nanowire can be detected with a sensitivity of 100 femtometers via the wavelength of the light emitted by the quantum dot. Conversely, the oscillation of the nanowire can be influenced by excitation of the quantum dot with a laser. Nature Communications published the results.

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