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A quantum "wave packet" (in the middle) launched from the same kind of starting point behaves differently. Even after bouncing around for a very long time, faint filament-like patterns (bright glow) are still visible, a tattoo tracing back to its early history. This lingering imprint is the "quantum birthmark" described in the study. Credit: Joonas Keski-Rahkonen, Tampere University Even the most chaotic quantum systems keep a permanent mark of their own past – a "quantum bir

Illustration (University of Basel, Timon Baltisberger): Biexziton decay can generate photons of very high quality if the system is specifically controlled using an optical cavity. Under these conditions, 90 per cent of the photons are indistinguishable. Working in close collaboration, researchers from Paderborn University, the University of Basel and Ruhr University Bochum have made a significant breakthrough in the field of quantum communication. In their recently published

(a) The structure of the gate electrodes on the ZnO device used in the experiment in this paper. (b) The charge stability diagram indicating the formation of ZnO double quantum dot in few-electron regime. Researchers at Tohoku University, in collaboration with the National Institute for Materials Science (NIMS) and the University of Tokyo, have taken an important step toward semiconductor quantum computing using zinc oxide (ZnO). The team successfully demonstrated charge sens

Researcher reflected in P-Name, one of The University of Manchester’s internationally unique instruments that can implant individual atoms into a material with a precision of 20 nanometres From atoms to devices A sensor so precise it can find buried pipes and cavities from the surface, without digging a single hole. A communications system where an eavesdropper cannot hide. A computer that can simulate the behaviour of molecules in ways that enable accelerated drug discovery

SoCal Quantum Alliance / Photo illustration: David Esquivel and Suzannah Mathur / UCLA The center, operated jointly by the UCLA College’s Division of Physical Sciences and the UCLA Samueli School of Engineering, directs the Quantum Innovation Hub that will soon occupy space at the UCLA Research Park. Key takeaways UCLA will lead a major new effort to strengthen Southern California’s quantum technology ecosystem through a $9.74 million investment announced by Gov. Gavin Newsom

As the atom-light coupling strength (η) increases, the connectivity between quantum states grows and their phase differences become more diverse. A new graph-theoretic framework that provides a unified description of atom-light interactions across regimes ranging from weak to deep-strong coupling has been proposed. A research team comprising Professors Sunkyu Yu and Namkyoo Park of the Department of Electrical and Computer Engineering at Seoul National University College of E