Nuclear physicists may have finally pinpointed where in the proton a large fraction of its mass resides. A recent experiment has revealed the radius of the proton’s mass that is generated by the strong force […]
Physicists predict that layered electronic 2D semiconductors can host a curious quantum phase of matter called the supersolid. This counterintuitive quantum material simultaneously forms a rigid crystal, and yet at the same time allows particles […]
Insider Brief Alice & Bob chose Quantum Machines’ advanced quantum control platform, the OPX+, to power their quantum computer. Quantum Machines’ OPX+ incorporates a Pulse Processor Unit (PPU) that integrates classical processing and control flow […]
Quantum 7, 969 (2023). https://doi.org/10.22331/q-2023-03-30-969 We present an end-to-end and practical randomness amplification and privatisation protocol based on Bell tests. This allows the building of device-independent random number generators which output (near-)perfectly unbiased and private […]
Quantum 7, 968 (2023). https://doi.org/10.22331/q-2023-03-30-968 We compare the proposals that have appeared in the literature to describe a measurement of the time of arrival of a quantum particle at a detector. We show that there […]
Quantum 7, 967 (2023). https://doi.org/10.22331/q-2023-03-30-967 We present a family of electron-based coupled-wire models of bosonic orbifold topological phases, referred to as twist liquids, in two spatial dimensions. All local fermion degrees of freedom are gapped […]
China is forming an alliance on its quantum computing patent portfolio, according to reports from Asian media. A group of Chinese-based organizations created the Intellectual Property (IP) Alliance for Quantum Computing Industry and its affiliated […]
Quantum 7, 966 (2023). https://doi.org/10.22331/q-2023-03-30-966 We study variational quantum algorithms from the perspective of free fermions. By deriving the explicit structure of the associated Lie algebras, we show that the Quantum Approximate Optimization Algorithm (QAOA) […]
Insider Brief Quantum Computing Inc completes integration of QPhoton merger, more than doubling the size of the company and establishing its quantum hardware production capability. Quantum Computing Inc. begins prototype fabrication of its own quantum […]
Quantum 7, 965 (2023). https://doi.org/10.22331/q-2023-03-30-965 Thanks to common-mode noise rejection, differential configurations are crucial for realistic applications of phase and frequency estimation with atom interferometers. Currently, differential protocols with uncorrelated particles and mode-separable settings reach […]
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