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Physics - Materials Science - 14.10.2021
Exotic magnetic states in miniature dimensions
Exotic magnetic states in miniature dimensions
Led by scientists at Empa and the International Iberian Nanotechnology Laboratory, an international team of researchers from Switzerland, Portugal, Germany, and Spain have succeeded in building carbon-based quantum spin chains, where they captured the emergence of one of the cornerstone models of quantum magnetism first proposed by the 2016 Nobel laureate F. D.

Astronomy / Space Science - Physics - 14.10.2021
The planet does not fall far from the star
The planet does not fall far from the star
A compositional link between planets and their respective host star has long been assumed in astronomy. For the first time now, a team of scientists, with the participation of researchers of the National Centre of Competence in Research (NCCR) PlanetS from the University of Bern and the University of Zürich, deliver empirical evidence to support the assumption - and partly contradict it at the same time.

Physics - Electroengineering - 13.10.2021
How to force photons to never bounce back
How to force photons to never bounce back
Scientists have developed a topology-based method that forces microwave photons to travel along a one way path, despite unprecedented levels of disorder and obstacles on their way. This discovery paves the way to a new generation of high-frequency circuits and extremely robust, compact communication devices.

Health - Physics - 05.10.2021
Next-generation camera can better locate tumors
Next-generation camera can better locate tumors
Scientists at EPFL and Dartmouth College in the US have developed a system that can, for the first time, both pinpoint the exact location of a tumor and measure its depth. Their technology employs a high-tech camera developed at EPFL's Advanced Quantum Architecture Laboratory. A few years ago, Edoardo Charbon, an EPFL professor and head of the Advanced Quantum Architecture Laboratory, unveiled a new, ultra-high-power camera called SwissSPAD2.

Physics - Chemistry - 01.10.2021
Extending the power of attosecond spectroscopy
Extending the power of attosecond spectroscopy
Scientists at EPFL have shown that the powerful transient absorption spectroscopy technique can unravel ultrafast motion of electrons and nuclei in a molecule in real time and with atomic spatial resolution. The last few decades have seen impressive progress in laser-based technologies, which have led to significant advancements in atomic and molecular physics.

Life Sciences - Physics - 28.09.2021
Protein distancing
Protein distancing
Researchers at the Paul Scherrer Institute PSI are the first to have joined two proteins together by means of a free-standing, rigid link. The structural element holds the two protein molecules together at a defined distance and angle, much the way a barbell handle connects two weights. This type of linkage could help, for example, to develop so-called virus-like particles for vaccines.

Physics - Computer Science - 22.09.2021
Simplifying quantum systems
Simplifying quantum systems
If only it were less prone to error, quantum physics might already be giving us instant solutions to seemingly unsolvable problems. researchers are therefore working to develop systems that are more robust. In crude terms, our digitally driven information society is based on a simple binary opposition: 0 or 1.

Physics - Chemistry - 22.09.2021
The whole is the truth
Quantum physics opens our eyes to the holistic nature of reality. Nothing can be observed in isolation - and everything is governed by chance. We generally assume that the objects around us exist independently of us and of other objects. We can observe a glass as a well-defined object and investigate its chemical or physical properties in the lab.

Computer Science - Physics - 22.09.2021
Computer scientists take on the quantum challenge
Computer scientists take on the quantum challenge
For a long time, the development of quantum computers was concerned with theoretical and hardware aspects. But as the focus shifts towards programming, software and security issues, the classical computer sciences are coming back into play. Physicists had long nurtured the ambition to build a quantum computer.

Chemistry - Physics - 10.09.2021
The mystery of the flexible shell
The mystery of the flexible shell
An international research team with participation of the Paul Scherrer Institute PSI has revealed a secret about a marine animal's shell: The researchers have deciphered why the protective cover of the brachiopod Discinisca tenuis becomes extremely soft in water and gets hard again in the air. The study appears today .

Physics - Earth Sciences - 10.09.2021
Acoustic illusions
Acoustic illusions
Researchers have devised an ingenious method of using acoustics to conceal and simulate objects. When listening to music, we don't just hear the notes produced by the instruments, we are also immersed in its echoes from our surroundings. Sound waves bounce back off the walls and objects around us, forming a characteristic sound effect - a specific acoustic field.

Physics - 09.09.2021
An insulator made of two conductors
An insulator made of two conductors
At researchers have observed a new state of matter: in graphene layers twisted relative to each other, two electrical conductors team up to form an insulator. Ohm's law is well-known from physics class. It states that the resistance of a conductor and the voltage applied to it determine how much current will flow through the conductor.

Astronomy / Space Science - Physics - 08.09.2021
Surprise: the Milky Way is not homogeneous
Surprise: the Milky Way is not homogeneous
Astronomers from the UNIGE have observed the composition of the gases in our galaxy and have shown that, contrary to the models established until now, they are not homogeneously mixed. In order to better understand the history and evolution of the Milky Way, astronomers are studying the composition of the gases and metals that make up an important part of our galaxy.

Physics - Materials Science - 02.09.2021
Photovoltaic perovskites can detect neutrons
Photovoltaic perovskites can detect neutrons
A simple and cheap device for detecting neutrons has been developed by a team of researchers and their collaborators. The device, based on a special class of crystalline compounds called perovskites, could be used to quickly detect neutrons coming from radioactive materials, e.g. a nuclear reactor that has been damaged or that is being transported nefariously, the researchers say.

Chemistry - Physics - 30.08.2021
Charging stations can combine hydrogen production and energy storage
Charging stations can combine hydrogen production and energy storage
Scientists have developed a new system that addresses two top priorities of the energy transition: clean hydrogen production and large-scale energy storage. Their technology could be particularly useful in transportation applications. The need for reliable renewable energy is growing fast, as countries around the world - including Switzerland - step up their efforts to fight climate change, find alternatives to fossil fuels and reach the energy-transition targets set by their governments.

Physics - Chemistry - 26.08.2021
Light-matter interactions propel quantum technologies forward
Light-matter interactions propel quantum technologies forward
Physicists at EPFL have found a way to get photons to interact with pairs of atoms for the first time. The breakthrough is important for the field of cavity quantum electrodynamics (QED), a cutting-edge field leading the way to quantum technologies. Image: A collection of atom pairs inside an optical cavity formed by a pair of mirrors facing each other.

Computer Science - Physics - 25.08.2021
Optical technology can slash the energy required by AI
Optical technology can slash the energy required by AI
EPFL engineers are pioneering an energy-saving technology that uses fiber optics to boost the performance of supercomputers. Optical technology is used for transmitting, storing, displaying and identifying data. It provides the processing speed that data centers need by offering efficient means for communication and analysis operations.

Physics - Astronomy / Space Science - 19.08.2021
Researchers from IRSOL and IAC solve twenty-year-old paradox in solar physics
Researchers from IRSOL and IAC solve twenty-year-old paradox in solar physics
In 1998, the journal Nature published a seminal letter concluding that a mysterious signal, which had been recently discovered analysing the polarization of sunlight, implies that the solar chromosphere (a very important layer of the solar atmosphere) is practically unmagnetised, in sharp contradiction with common wisdom.

Physics - 17.08.2021
Scientific reasoning requires the irrationality of intuition
SUMMER SERIE: HOW SCIENCE WORKS Science is based on coherent reasoning, while intuition follows a more disjointed path. But scientific research couldn't succeed if scientists didn't listen to their gut feelings every once in a while. Science by definition relies on logic, reasoning and rigor. But we've all heard about Archimedes' famous Eureka! moment when, while taking a bath, he suddenly understood what came to be known as Archimedes' principle.

Physics - Chemistry - 05.08.2021
A promising breakthrough: Nanocrystals made of amalgam
A promising breakthrough: Nanocrystals made of amalgam
Researchers at ETH have managed to produce nanocrystals made of two different metals using an amalgamation process whereby a liquid metal penetrates a solid one. This new and surprisingly intuitive technique makes it possible to produce a vast array of intermetallic nanocrystals with tailored properties for diverse applications.  Nanocrystals are nanometre-sized spheres consisting of regularly arranged atoms.
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