In a new study, researchers from the MCQST, the Max Planck Institute of Quantum Optics and the LMU under the lead of Timon Hilker demonstrated evidence of stripe formation, i.e. extended structures in the density pattern, in a cold-atom Fermi-Hubbard system. By using a quantum gas microscope and a special mixed-dimensional geometry, they were able to observe unique higher-order correlations in spin and charge densities related to those seen in some high-temperature superconducting materials.

Researchers have pioneered the use of parallel computing on graphics cards to simulate acoustic turbulence. This type of simulation, which previously required a supercomputer, can now be performed on a standard personal computer. The discovery will make weather forecasting models more accurate while enabling the use of turbulence theory in various fields of physics, such as astrophysics, to calculate the trajectories and propagation speeds of acoustic waves in the universe. The research, supported by a from the Russian Science Foundation (RSF), was in Physical Review Letters.

The Fraunhofer Institute for Applied Optics and Precision Engineering IOF is presenting a new photon source at SPIE Photonics West in San Francisco (January 28 to 30, 2025) that has been specially developed for the "Prepare-and-Measure" protocol of quantum communication. The components of the source are optimized for use in space.

The networked world is increasingly being shaken by digital sabotage, cyber attacks, malware and the like. Yet IT security is more important than ever these days. Networks based on quantum physics could significantly improve the security of relevant systems. So-called quantum repeaters form the basis for this. These devices have been the subject of intensive research for several years, but are not yet marketable. A new joint project, in which Paderborn University is involved, therefore aims to develop new concepts and demonstrate them on real test tracks outside the laboratory.

Quantum Computing Inc. (“QCi” or the “Company”), an innovative, integrated photonics and quantum optics technology company, today announced a collaboration with Sanders Tri-Institutional Therapeutics Discovery Institute, Inc. (Sanders TDI) to drive advancement of research in computational biomedicine. Through this collaboration, QCi will provide Sanders TDI with access to its quantum computation technology and hardware, specifically with its Dirac-3 Entropy Quantum Computing Machine, to support the Institute’s experimental work.

Wenchao Xu, tenure-track Assistant Professor in the Department of Physics with a joint appointment at the Paul Scherrer Institute (PSI), believes that large arrays of neutral atoms make a promising architecture for quantum computing and simulation. Her project, which is financially supported by ETH Zurich and by a SNSF Starting Grant that began last year, puts forward what Xu refers to as a dual-type, dual-element atom array bringing together individually trapped ytterbium atoms and small ensembles of rubidium atoms.

IonQ, a leader in the quantum computing and networking industries, will be presenting at CES 2025 this week, marking a key milestone as the event launches its first-ever dedicated quantum track: “Quantum Means Business: A Quantum World Congress Program.” CES is one of the world’s most influential technology events, showcasing the latest innovations that have shaped the future of technology for over 50 years.

Quantum Computing Inc. ("QCi" or the "Company"), an innovative, integrated photonics and quantum optics technology company, today announced that it has entered into securities purchase agreements with institutional investors for the purchase and sale of 8,163,266 shares of common stock in a private placement at a purchase price of $12.25 per share. The offering is expected to result in gross proceeds of $100 million, before deducting offering expenses. The closing of the offering is expected to occur on or about January 9, 2025, subject to the satisfaction of customary closing conditions.

In a new paper in Nature Photonics, researchers at the University of Pennsylvania School of Engineering and Applied Science (Penn Engineering) describe the creation of a novel photonic switch that overcomes this size-speed tradeoff. And at just 85 by 85 micrometers, the new switch’s units are smaller than a grain of salt.

It is often difficult to find out which equations determine a particular quantum system. Normally, one first has to make theoretical assumptions and then conduct experiments to check whether these assumptions prove correct. Strikingly, researchers at the University of Innsbruck, opens an external URL in a new window, the Institute of Quantum Optics and Quantum Information, opens an external URL in a new window (IQOQI) and TU Wien (Vienna) have now jointly achieved an important step in this field: they have developed a method that allows them to read directly from the experiment which physical theory effectively describes the behaviour of the quantum system. This now allows for a new kind of quality control: it is possible to directly check whether the quantum simulator actually does what it is supposed to simulate. This should enable quantitative statements to be made about quantum systems that cannot be investigated directly.