Quantum 7, 1013 (2023). https://doi.org/10.22331/q-2023-05-23-1013 We propose a category-theoretic definition of retrodiction and use it to exhibit a time-reversal symmetry for all quantum channels. We do this by introducing retrodiction families and functors, which capture […]
A University of Minnesota Twin Cities-led team has developed a first-of-its-kind breakthrough method that makes it easier to create high-quality metal oxide films that are important for various next generation applications such as quantum computing […]
By Carolyn Mathas While it’s the go-to technology for applications ranging from military to underground exploration, the Global Positioning System (GPS) satellite-based radio navigation system has its challenges—including unavailability and the possibility that it can […]
Researchers from QuTech improved the so-called “Andreev spin qubit” in a critical way and believe it can become a prime candidate in the pursuit of a perfect qubit. The new type of qubit is created […]
Oliver Dial, Quantum CTO at IBM, is interviewed by Yuval Boger. Oliver and Yuval talk about what computer they recommend to each customer, whether the machines get better over time, why customers sometimes choose to […]
Insider Brief Quantum Computing Inc.’s board of directors approved a letter-of-intent to by millionways, an AI firm. millionways develops AI algorithms to effectively provide next-gen feedback to users on their emotional state and personality insights. […]
How far along are the quantum technologies? And what do we really mean when we use the word quantum? Senior Adviser Ulrich Busk Hoff has been conducting research into and communicating about quantum physics for […]
How do brains learn? It’s a mystery, one that applies both to the spongy organs in our skulls and to their digital counterparts in our machines. Even though artificial neural networks (ANNs) are built from […]
Chiral spin liquids are one of the most fascinating phases of matter ever imagined by physicists. These exotic liquids exhibit quasi-particles known as non-Abelian anyons that are neither bosons nor fermions, and whose manipulation could […]
Quantum 7, 1012 (2023). https://doi.org/10.22331/q-2023-05-22-1012 Metric adjusted skew information, induced from quantum Fisher information, is a well-known family of resource measures in the resource theory of asymmetry. However, its asymptotic rates are not valid asymmetry […]
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