12+ hour, 55+ min ago  (967+ words) Versatile probe state preparation via generalized measurements for quantum sensing and thermometry Until now, optimising quantum sensors has lacked a clear link between achievable precision and fundamental thermodynamic properties. This work establishes a direct relationship between quantum Fisher information, thermodynamic…...

18+ hour, 7+ min ago  (118+ words) The value of the quantum slice is realized by how cleanly it integrates with the classical stack around it. Unlike GPUs, which could be slotted into existing rack architectures, quantum computers present a more fundamental challenge. Diraq is actively addressing…...

10+ hour, 49+ min ago  (1005+ words) Quantum Zeitgeist Low electrical noise in bilayer graphene rivals silicon for qubit applications A noise spectral density of 0. 5 to 0. 9 ne V/Hz was extracted from bilayer graphene quantum dots, representing a sharp step forward as previously quantifying such low-level electrical…...

11+ hour, 55+ min ago  (1027+ words) Estimation of sudden disturbances is typically limited by unavoidable uncertainty in measurement. Optimal parametric driving now reduces this estimation variance by up to a factor of two, a result achieved by dynamically shaping how information is gathered. Unlike conventional methods,…...

18+ hour, 2+ min ago  (140+ words) Each tile's compute-fitting 16 pixel traces-is too small to saturate a modern GPU, so execution time is dominated by fixed per-tile overhead (task dispatch, data movement, setup). This eliminates the overhead of staging data through host memory and issuing a separate…...

13+ hour, 10+ min ago  (575+ words) Quantum Zeitgeist Researchers from Kyushu University, working with five other institutions including the Stevens Institute of Technology and the National Institute of Standards and Technology, have established a theoretical framework demonstrating that existing trapped-ion atomic clocks can be used to…...

12+ hour, 55+ min ago  (410+ words) Transfer fidelities exceeding 99% are now attainable with just ten or more coupling points, a marked improvement over previous passive schemes reliant on complex photonic reservoirs. This protocol achieves 87% fidelity using only two coupling points, demonstrating a simpler, more efficient approach…...

12+ hour, 19+ min ago  (1045+ words) Squeezing and adiabaticity breaking in time-dependent quantum harmonic oscillators Until now, understanding how a quantum harmonic oscillator responds to changing frequencies required choosing between established but disparate methods. This review demonstrates that these approaches, Lewis-Riesenfeld invariants, Bogoliubov transformations, and the…...

12+ hour, 34+ min ago  (1099+ words) The maximal average feedback work from a Szilard engine, utilising side information induced by Bell correlations, is bounded by k BT ln 2 multiplied by mutual information. This establishes a clear relationship between work extraction and the CHSH value, allowing for…...

12+ hour, 5+ min ago  (737+ words) Dr. Donovan is a futurist and technology writer covering the quantum revolution. Where classical computers manipulate bits that are either on or off, quantum machines exploit superposition and entanglement to process information in ways that classical physics cannot. Dr. Donovan…...