Category: Allgemein

How it works: the noninvasive imaging technique combines acoustic radiation force and optical coherence tomography to produce 3D elastic wave speed maps of multiple eye components simultaneously. Left: cross-sectional image of a wave speed map of the anterior segment of the eyeball depicting different eye components: lens (L), iris (I), cornea (C), and sclera (S).… Continue reading Multi-eye-component imaging could help diagnose ocular disease

<p><em>The following article is adapted from a press release issued by the Laser Interferometer Gravitational-wave Observatory (LIGO) Laboratory. LIGO is funded by the National Science Foundation and operated by Caltech and MIT, which conceived and built the project.</em></p>nn<p>In 2015, the Laser Interferometer Gravitational-Wave Observatory, or LIGO, made history when it made the first direct detection… Continue reading LIGO surpasses the quantum limit

Quantum bits (qubits) based on cold atoms are increasingly attractive candidates for quantum computing. However, targeting single atoms in an array with lasers to manipulate them individually for processing quantum information remains a challenge. Now,  Hannes Pichler at Austria’s University of Innsbruck and Francesco Cesa, who was visiting from Italy’s University of Trieste, have designed… Continue reading Quantum-computing protocol avoids targeting individual atoms in an array

Update 07/11/2023: The Lu-N-H paper (Nature 615 244) has since been retracted by the journal.   “I’m going to introduce a new material for the first time.” So said the condensed-matter physicist Ranga Dias to a packed conference room at the March meeting of the American Physical Society in Las Vegas earlier this year. The… Continue reading Superconductivity ‘damaged’ as researchers look to move on from retractions

While quantum computers show great promise for the future, today’s processors are small and noisy – and this makes it very difficult to do meaningful quantum calculations right now. To address this problem, researchers are developing clever quantum algorithms that make the most out of the hardware that is available today. Some of those algorithms… Continue reading Quantum algorithms make clever use of noisy hardware