A team at QuTech has demonstrated the initialization, readout and universal control of four qubits made out of eight germanium quantum dots, realizing a first-in-its-kind quantum circuit. These results, published in Nature Nanotechnology and featured on the journal’s February issue cover, mean more than just highlighting the potential of semiconductor qubits as a platform for large-scale quantum computing.

A quantum “miracle material” could support magnetic switching, a team of researchers at the University of Regensburg and University of Michigan has shown. his recently discovered capability could help enable applications in quantum computing, sensing and more. While earlier studies identified that quantum entities called excitons are sometimes effectively confined to a single line within the material chromium sulfide bromide, the new research provides a thorough theoretical and experimental demonstration explaining how this is connected to the magnetic order in the material.

The International Year of Quantum Science and Technology is off to a good start for TNO. At the forefront of an international partnership with the Fraunhofer Institute for Laser Technology ILT in Aachen, TNO has successfully delivered Germany’s first quantum internet node. In the coming years, Fraunhofer ILT will enhance this node and create the initial regional connections to Jülich and Bonn.

Penn and CUNY researchers collaborated to develop a device that uses quantum principles to relay information securely—an advance that could improve encryption in critical service areas like banking and health care.

Excitons, encountered in technologies like solar cells and TVs, are quasiparticles formed by an electron and a positively charged “hole,” moving together in a semiconductor. Created when an electron is excited to a higher energy state, excitons transfer energy without carrying a net charge. While their behavior in traditional semiconductors is well understood, excitons act differently in organic semiconductors. Research by condensed matter physicist Ivan Biaggio focuses on understanding the mechanisms behind exciton dynamics, quantum entanglement, and dissociation in organic molecular crystals.

In a groundbreaking discovery, researchers from Nagoya University in Japan and the Slovak Academy of Sciences have unveiled new insights into the interplay between quantum theory and thermodynamics. The team demonstrated that while quantum theory does not inherently forbid violations of the second law of thermodynamics, quantum processes may be implemented without actually breaching the law. This discovery, published in npj Quantum Information, highlights a harmonious coexistence between the two fields, despite their logical independence. Their findings open up new avenues for understanding the thermodynamic boundaries of quantum technologies, such as quantum computing and nanoscale engines.

A new Institute for Quantum Computing (IQC)-Mitacs paid internship program can help bridge the gap between industry and academia allowing students to diversify their skills. The program offers financial support to undergraduate and graduate students in quantum information, as well as recent graduates.

For the first time, researchers have been able to measure the quantum state of electrons ejected from atoms that have absorbed high-energy light pulses. This is thanks to a new measurement technique developed by researchers at Lund University in Sweden. The results can provide a better understanding of the interaction between light and matter.

A team from the Faculty of Physics of the University of Barcelona has designed new experimental equipment that makes it possible for students to familiarize themselves with the more complex concepts of quantum physics. The configuration they present —versatile, cost-effective and with multiple ways of application in the classroom — is already operational in the Advanced Quantum Laboratory of the UB’s Faculty of Physics and could also be accessible in less specialized centres.

In a pioneering field test, quantum entanglement was successfully distributed among three devices located in different buildings on the TU Delft Campus. Utilizing self-developed optical devices, TNO established connections over 150 meters of free space and 200 meters of optical fiber. This small-scale configuration simulates a future satellite-ground network connection. The communication system’s components were developed by six different companies.