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Category: quantum physics – Page 2

H. P. Lovecraft

What if H.P. Lovecraft didn’t just imagine the Old Ones… what if he documented them?

In this speculative science analysis of SCP-4315: S.C.P. Lovecraft, we explore a Foundation case that blurs the line between fiction and physics — where imagination itself becomes a containment hazard. Discover how stories can bend probability, how consciousness shapes reality, and why Providence might be the thinnest spot between worlds.

We’ll unpack the Quantum Fictionalization Hypothesis, the Dreamlands as a collective cognitive field, and the terrifying idea that the human mind might be the real breach site.

If you love the SCP Foundation, cosmic horror, or mind-bending science philosophy, this is your next rabbit hole.

🔬 Topics Covered:

Lovecraft as Vector Zero.

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Global initiative advances next-generation light sensors based on emerging materials

A global team of experts from academia and industry has joined forces in a landmark Consensus Statement on next-generation photodetectors based on emerging light-responsive materials, which could accelerate innovative applications across health care, smart homes, agriculture, and manufacturing.

Professor Vincenzo Pecunia, head of the Sustainable Optoelectronics Research Group (www.sfu.ca/see/soe), has led this global initiative culminating in the publication of a Consensus Statement in Nature Photonics. Featured on the journal’s cover, the paper provides a unified framework for characterizing, reporting, and benchmarking emerging light-sensing technologies. These guidelines could catalyze the adoption of such sensors across a wide range of applications, enhancing quality of life, productivity, and sustainability.

Light sensors, also known as photodetectors, are devices that convert light into electrical signals. They are at the heart of countless smart devices and represent a valued at over $30 billion, reflecting both their ubiquity and economic significance. Emerging photodetectors—including those based on organic semiconductors, perovskites, , and two-dimensional materials—could take this field even further by enabling ultrathin, flexible, stretchable, and lightweight sensors. These next-generation photodetectors promise lower costs, enhanced performance, and unique functionalities, paving the way for applications that were previously impossible.

When Electrons Sing in Harmony: Geometry-Driven Quantum Coherence in Kagome Crystals

In a groundbreaking experiment that blurs the line between physics and art, researchers at the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) in Hamburg have discovered a mesmerizing form of collective quantum behavior in Kagome crystals — a class of materials named after a traditional Japanese basket-weaving pattern. The study, published in Nature, reveals that electrons within these star-shaped lattices can synchronize like singers in a choir, producing a coherent “quantum song” that depends directly on the crystal’s geometric shape.

Quantum Coherence Beyond Superconductivity

Quantum coherence — the synchronized motion of particles acting as overlapping waves — is typically restricted to exotic states such as superconductivity, where electrons pair up and flow without resistance. In normal metals, this delicate coherence is quickly destroyed by scattering and collisions. But in the Kagome metal CsV₃Sb₅, the MPSD team observed something extraordinary: electrons maintained long-range coherence even without superconductivity.

History of quantum mechanics

The history of quantum mechanics is a fundamental part of the history of modern physics. The major chapters of this history begin with the emergence of quantum ideas to explain individual phenomena—blackbody radiation, the photoelectric effect, solar emission spectra—an era called the Old or Older quantum theories. [ 1 ]

Building on the technology developed in classical mechanics, the invention of wave mechanics by Erwin Schrödinger and expansion by many others triggers the “modern” era beginning around 1925. Paul Dirac’s relativistic quantum theory work led him to explore quantum theories of radiation, culminating in quantum electrodynamics, the first quantum field theory. The history of quantum mechanics continues in the history of quantum field theory. The history of quantum chemistry, theoretical basis of chemical structure, reactivity, and bonding, interlaces with the events discussed in this article.

The phrase “quantum mechanics” was coined (in German, Quantenmechanik) by the group of physicists including Max Born, Werner Heisenberg, and Wolfgang Pauli, at the University of Göttingen in the early 1920s, and was first used in Born and P. Jordan’s September 1925 paper “Zur Quantenmechanik”. [ 2 ] [ 3 ] [ 4 ].

Quantum teleportation coexisting with classical communications in optical fiber

Quantum teleportation was achieved over the internet for the first time

[ https://www.sciencealert.com/quantum-teleportation-was-achie…first-time]

The ability for quantum and conventional networks to operate in the same optical fibers would aid the deployment of quantum network technology on a large scale. Quantum teleportation is a fundamental operation in quantum networking, but has yet to be demonstrated in fibers populated with high-power conventional optical signals. Here we report, to the best of our knowledge, the first demonstration of quantum teleportation over fibers carrying conventional telecommunications traffic. Quantum state transfer is achieved over a 30.2-km fiber carrying 400-Gbps C-band classical traffic with a Bell state measurement performed at the fiber’s midpoint. To protect quantum fidelity from spontaneous Raman scattering noise, we use optimal O-band quantum channels, narrow spectro-temporal filtering, and multi-photon coincidence detection. Fidelity is shown to be well maintained with an elevated C-band launch power of 18.7 dBm for the single-channel 400-Gbps signal, which we project could support multiple classical channels totaling many terabits/s aggregate data rates. These results show the feasibility of advanced quantum and classical network applications operating within a unified fiber infrastructure.

#Quantumgravity #Blackholes #Astrophysics #Feynmanpathintegral #Spacetimecurvature #Relativisticjets #Whitehole #Theoneequation #Scienceexplained #Research #Physics

When a Black Hole Becomes a White Hole — and Shoots a Jet Across the Universe.

https://lnkd.in/eUFddtjM

🌌 Have you ever wondered what happens inside a black hole — where physics seems to break? Einstein’s equations say it collapses forever… but quantum geometry tells a different story.

At the tiniest scales, spacetime itself pushes back. When curvature becomes extreme, a hidden repulsive side of gravity awakens — a mirror twin of the usual attraction. We call this curvature duality:

New model can detect ballistic electrons under realistic conditions

Ballistic electrons are among the most fascinating phenomena in modern quantum materials. Unlike ordinary electrons, they do not scatter off imperfections in the material and therefore travel from A to B with almost no resistance—like a capsule in a pneumatic tube. This behavior often occurs in confined one- or two-dimensional materials.

A problem that takes quantum computers an unfathomable amount of time to solve

It’s a well-known fact that quantum calculations are difficult, but one would think that quantum computers would facilitate the process. In most cases, this is true.

Quantum bits, or qubits, use , like superposition and entanglement, to process many possibilities simultaneously. This allows for exponentially faster computing for complex problems. However, Thomas Schuster, of California Institute of Technology, and his research team have given quantum computers a problem that even they can’t solve in a reasonable amount of time—recognizing phases of matter of unknown quantum states.

The team’s research can be found in a paper published on the arXiv preprint server.

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