This is the only time you will read an article about quantum physics where it's presented as not totally crazy, but "just like thermodynamics"
Quantum theory and thermodynamics: No contradiction with new entropy definition, study says
Jan 2025, phys.org
via Vienna University of Technology: Florian Meier et al, Emergence of a Second Law of Thermodynamics in Isolated Quantum Systems, PRX Quantum (2025). DOI: 10.1103/PRXQuantum.6.010309
Image credit: Artwork by Antoly Fomenko
Gravity from entropy: A radical new approach to unifying quantum mechanics and general relativity
Mar 2025, phys.org
A novel approach that derives gravity from quantum relative entropy works by treating the metric of spacetime as a quantum operator, a concept from quantum information theory,It's a new entropic action which quantifies the difference between the metric of spacetime and the metric induced by matter fields.A key feature of the theory is the introduction of the G-field, an auxiliary field that acts as a Lagrangian multiplier."This work proposes that quantum gravity has an entropic origin and suggests that the G-field might be a candidate for dark matter. Additionally, the emergent cosmological constant predicted by our model could help resolve the discrepancy between theoretical predictions and experimental observations of the universe's expansion."
via Queen Mary, University of London: Ginestra Bianconi, Gravity from entropy, Physical Review D (2025). DOI: 10.1103/PhysRevD.111.066001
AI and adaptive optics propel free-space quantum communication by solving atmospheric turbulence challenges
Mar 2025, phys.org
TAROQQO is a a turbulence prediction tool based on Recurrent Neural Networks. By employing real-time weather data - including humidity, solar radiation, temperature, pressure, and a turbulence parameter known as Cn²— TAROQQO can accurately predict turbulence strength up to 12 hours in advance, offering a time resolution as precise as one minute.
via University of Ottawa, National Research Council Canada and the Max Planck Institute for the Science of Light: Tareq Jaouni et al, Predicting atmospheric turbulence for secure quantum communications in free space, Optics Express (2025). DOI: 10.1364/OE.546606
Also: Lukas Scarfe et al, Fast adaptive optics for high-dimensional quantum communications in turbulent channels, Communications Physics (2025). DOI: 10.1038/s42005-025-01986-6
First operating system for quantum networks paves the way for practical internet applications
Mar 2025, phys.org
Steps must be taken - The quantum network operating system, known as QNodeOS, is fully programmable, meaning that applications can be run at a high level, just like on classical operating systems such as Windows or Android.
via Quantum Internet Alliance at TU Delft, QuTech, University of Innsbruck, INRIA and CNRS: Stephanie Wehner, An operating system for executing applications on quantum network nodes, Nature (2025). DOI: 10.1038/s41586-025-08704-w.
A new approach to reduce decoherence in superconducting qudit-based quantum processors
Feb 2025, phys.org
Another reminder they're doing these as experiments in real systems that work today, these aren't just theory: "and experimentally verified on a superconducting transmon processor"
via University of Southern California and University of California-Berkeley: Vinay Tripathi et al, Qudit Dynamical Decoupling on a Superconducting Quantum Processor, Physical Review Letters (2025). DOI: 10.1103/PhysRevLett.134.050601.
https://dx.doi.org/10.1103/PhysRevLett.134.050601
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