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Quantum Campus shares the latest in quantum science and technology. Read by more than 1,900 researchers, we are always looking for news from across the country. See something interesting? Be sure to share it.
Disordered spin
By applying tensor networks to a long-used classical computing algorithm, a team from the Flatiron Institute and Boston University simulated the dynamics of a disordered spin model in two and three dimensions. Many researchers previously thought such simulations would only be possible on quantum computers. Instead, most of the calculations were completed on a standard laptop.
This work was published last week in Science.
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Molecule-based qubits
Science magazine covered the expansion of NVision, a German company offering a quantum-sensing platform that enhances MRI signals such that standard MRI machines can provide real-time measurement of metabolism. NVision has begun using its molecule-based qubits to develop a quantum computing system as well. The company describes their new work as an effort to “build an end to end, quantum based approach to designing and validating [drug] therapies.”
The team released a whitepaper describing their molecular qubit earlier this month. In it, they claim millisecond-scale dynamical-decoupling coherence at 4.5 Kelvin.
Read the full Science article.
NVision’s quantum sensing platform, photonic integrated quantum circuits. Image from NVision.
Perfect randomness
Introducing a method they call randomness amplification, researchers at ETH Zurich generated perfectly random numbers. Their system relied on superconducting qubits and a loophole-free Bell test “with simultaneously high quality and high data rate.”
“The technical improvements allowed us, for the first time, to create random numbers that will remain perfectly random for all eternity – no matter what analytical methods are used to assess their randomness,” according to ETH Zurich’s Renato Renner.
This work was published this week in Nature.
Quickbits
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Quantum Campus is edited by Bill Bell, a science writer and marketing consultant who has covered physics and high-performance computing for more than 25 years. Disclosure statement.
