Researchers developed a classical laser rangefinding technique that achieves sub-millimeter accuracy in long-distance measurements by successfully mimicking the noise-rejecting properties of quantum entanglement in bright daytime environments.
#AppliedPhysics #Photonics #QuantumOptics #OpticalEngineering #sflorg
https://www.sflorg.com/2026/03/phy03172601.html
Quantum-inspired laser system delivers distance measurements with sub-millimeter accuracy

A new laser range-finding technique, inspired by quantum physics, which can measure distances under strong solar background

#StandardModel of #ParticlePhysics verified to one trillionth accuracy: Experiments with hydrogen confirm fundamental #QuantumTheory up to the 13th decimal place and solve proton radius puzzle 👉 https://prisma.uni-mainz.de/en/2026/03/11/standard-model-of-particle-physics-tested-to-a-trillionth-of-a-percent-accuracy/

#QuantumOptics #physics #ClusterOfExcellencePRISMA

The QnanoOptics team (University of Oviedo) taking a short break during Nanolight 2026 in Benasque.

A fantastic week of nanophotonics, scientific discussions, and new ideas in the Pyrenees.

#NanoLight2026 #Nanophotonics #QuantumOptics #AcademicLife

I am still alive, and there are big news for the project – news that are over one month overdue, but I was so focused on writing grant proposals that I couldn’t find time to write about it. Long story short: we finished the preprint of our spin liquid paper (https://arxiv.org/pdf/2512.05630). This work originated much before I came to Darrick Chang’s group, thus I am only a third author, but I did my part within the QUINTO project.

What is it about? Basically, atoms can make photons interacting with each other. In general, the interaction of many simple objects can lead to unusual, counterintuitive behavior. For example, many interacting electrons can form fractional quantum Hall states, and many interacting spins can form spin liquids – both being complicated quantum states, whose unusual properties manifest themselves with emergence of “quasiparticles” – objects that behave like individual particles, although in reality they are collective states of many particles. These quasiparticles can behave unlike any elementary particle found in nature – for example, they can have a fraction of single electron charge, and be neither bosons nor fermions but “anyons”. In the paper, we ask: can we observe similar effects with atoms and light?

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#physics #science #quantum #CondMat #CondensedMatter #QuantumOptics #ColdAtoms #AtomicPhysics

La lumière cache un secret magnétique : le champ magnétique de la lumière influencerait la matière. Mais... l’Effet Faraday mériterait peut-être d’être réécrit. https://www.geo.fr/sciences/l-effet-faraday-est-il-errone-180-ans-apres-sa-formulation-des-chercheurs-revelent-une-nouvelle-facette-de-la-lumiere-229905 #Space #Science #Astrophysics #FaradayRevisité #QuantumOptics
L'effet Faraday est-il erroné? 180 ans après sa formulation, des chercheurs révèlent une nouvelle facette de la lumière

Il était acquis depuis 180 ans que l'effet Faraday dépendait seulement de la partie électrique de la lumière, mais une équipe israélienne vient tout juste de bousculer cette vieille hypothèse en montrant que le champ magnétique est tout aussi important.

Geo.fr

🎬 Great new film 🎞️

Our @unihannover colleagues have produced a film about quantum optics and gravitational physics research, featuring inspiring pictures from several of our labs.

🎞️ https://www.youtube.com/watch?v=otNPNzYwBpA

🎞️ https://inv.nadeko.net/watch?v=otNPNzYwBpA

German and English subtitles are available.

#QuantumOptics #GravitationalPhysics #Hannover #Research #LISA #GRACE #GRACEFollowOn #GravitationalWaves

We just submitted the first QUINTO draft of paper to a journal. Let's see what the editors and reviewers think.

The paper is about fractional quantum Hall states in atomic arrays. Here is the popular summary we submitted alongside:

"When atoms are arranged in a regular, dense array, their response to light can change drastically. The photons can bounce between the atoms, getting absorbed and re-emitted again and interfering with themselves. This field of quantum optics with atomic arrays is of active interest. Due to interactions, the limit of many absorbed photons generally remains hard to model, but at the same time may result in new, counterintuitive physical phenomena. In the search for ways to understand such systems, we can look for analogies in condensed matter physics, where the behavior of many interacting particles (electrons in this case) has been studied for decades. Here, we report on finding such an analogy between the behavior of few photons absorbed by an array and peculiar many-electron quantum states known as fractional quantum Hall (FQH) states. FQH states display many counterintuitive properties -- for example the electrons behave like they decomposed into pieces (e.g. "one third of an electron"), even though we know that in reality they are indivisible. Now we know that photons in arrays can behave similarly."

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#physics #science #CondensedMatterPhysics #CondensedMatter #condMat #QuantumOptics #Quantum @physics

We just came back from the "Light-Matter Interactions and Collective Effects" workshop in Paris. We heard some interesting talks on how quantum emitters (not only atoms, but also e.g. molecules and quantum dots) interact with each other and how people try to arrange them into arrays (like, putting chains of molecules inside a carbon nanotube). Darrick (my boss and supervisor of the project) gave a talk on spin liquids, while I presented a poster on fractional quantum Hall states in atom arrays.

#physics #quantum #science #QuantumOptics #CondensedMatter #CondMat

A new coronagraph design unveils Earth-like exoplanets hidden in starlight, bringing us closer to finding life beyond Earth. #ExoplanetDiscovery #QuantumOptics #SpaceInnovation

https://geekoo.news/blinding-the-stars-a-quantum-leap-in-exoplanet-discovery/

Blinding the Stars: A Quantum Leap in Exoplanet Discovery | Geekoo

A pioneering coronagraph developed by University of Arizona researchers employs quantum-optimal techniques to suppress starlight, enabling the direct imaging of Earth-like exoplanets previously hidden in stellar glare. This advancement could significantly enhance our ability to detect biosignatures and assess the habitability of distant worlds.

Geekoo