Using some of the world’s most powerful supercomputers, a group of theorists has produced a major advance in the field of nuclear physics—a calculation of the “heavy quark diffusion coefficient.” This number describes how quickly […]
A group of physicists at Hefei Institutes of Physical Science (HFIPS) of Chinese Academy of Sciences (CAS) revealed a secret of antiferromagnets, which could accelerate spintronics, a next-gen data storage and processing technology for overcoming […]
At the time of the Big Bang, 13.8 billion years ago, every particle of matter is thought to have been produced together with an antimatter equivalent of opposite electrical charge. But in the present-day universe, […]
Insider Brief Toshiba Europe and Orange presented research findings that show quantum key distribution can be successfully deployed on network provider’s existing fibre networks alongside their current data services. The researchers say the work could […]
As a boy growing up in Rochester, England, Chris German knew of his family’s strong maritime tradition, and he had no intention of continuing it. One of his grandfathers had served in the Royal Navy […]
Insider Brief The €15m QDNL Participations fund helps researchers turn their technology into VC-investable startups Chad Rigetti built NASDAQ-traded quantum computing company Rigetti Computing At QDNL Participations, Rigetti will invest, support portfolio companies, and foster […]
Quantum 7, 1038 (2023). https://doi.org/10.22331/q-2023-06-07-1038 Quantum correlations and Wigner negativity are two important signatures of nonclassicality in continuous-variable quantum systems. In this work, we investigate how both are intertwined in the context of the conditional […]
Quantum 7, 1037 (2023). https://doi.org/10.22331/q-2023-06-07-1037 Belief propagation (BP) is well-known as a low complexity decoding algorithm with a strong performance for important classes of quantum error correcting codes, e.g. notably for the quantum low-density parity […]
Quantum 7, 1036 (2023). https://doi.org/10.22331/q-2023-06-07-1036 Given a dataset of input states, measurements, and probabilities, is it possible to efficiently predict the measurement probabilities associated with a quantum circuit? Recent work of Caro and Datta (2020) […]
Quantum 7, 1035 (2023). https://doi.org/10.22331/q-2023-06-07-1035 While there is general consensus on the definition of incompatible POVMs, moving up to the level of instruments one finds a much less clear situation, with mathematically different and logically […]
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