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Category: particle physics

Quantum Computers Just Proved The Simulation Theory Is Terrifying

Time is something we experience every day, yet scientists still struggle to fully understand what it really is. Now, advances in quantum computing are allowing researchers to explore some of the deepest mysteries of physics—and the results are raising extraordinary questions about the nature of time itself.

By simulating complex quantum systems that were previously impossible to study, quantum computers are helping scientists test theories about causality, time reversal, and the strange behavior of particles at the quantum level. Some findings appear to challenge our most basic assumptions about how time works.

Researchers are investigating whether time is truly fundamental to the universe or whether it emerges from deeper physical processes we have yet to understand. These ideas may sound like science fiction, but they are being explored by some of the world’s leading physicists.

The implications are profound. If our understanding of time is incomplete, it could affect everything from cosmology and black holes to the future of computing and our understanding of reality itself.

In this video, we examine the groundbreaking quantum experiments, the theories they are testing, and why some scientists believe these discoveries could transform our view of the universe.

Watch until the end to uncover the most mind-bending implications of this research. Don’t forget to LIKE, SHARE, and SUBSCRIBE for more cutting-edge science, quantum mysteries, and incredible discoveries. Comment below: What do you think time really is?

Continue reading “Quantum Computers Just Proved The Simulation Theory Is Terrifying” | >

Particle-Simulated Foam In Custom C++ Coastal System

Leonard Saalfrank, also known as OMYOG, has showcased a custom C++ coastal renderer created as a one-week rendering challenge, exploring real-time shoreline rendering, shallow-water simulation, and GPU-driven visual effects.

The project builds on his earlier water-rendering work for Ferocious and expands it with shallow-water waves, GPU-driven breaking waves, and particle-based foam supporting up to 300K GPU particles.

Above is a render handling over 6 million triangles across all passes, using 8K textures at 2K resolution, running at around 250 FPS on an RTX 4,090 Laptop GPU with GPU profiling enabled. Without capture and profiling overhead, performance reportedly increases to around 300 FPS.

World-first spintronic p-bit on silicon chip points toward larger AI-ready p-computers

A Japan–U.S. collaborative research team has demonstrated the world’s first integrated spintronic probabilistic bit, or p-bit, fabricated on a silicon chip using semiconductor manufacturing processes. The team, consisting of researchers from Tohoku University and the National Institute of Standards and Technology, experimentally verified the operation of the p-bit, a key building block for probabilistic, or p-, computers. The achievement provides a pathway toward large-scale spintronic p-computers for applications such as AI and machine learning.

Many emerging computational problems require efficient exploration of enormous numbers of possible states. Conventional computers, which process binary information, 0 or 1, sequentially, are not always well suited to such highly parallel tasks. Probabilistic computers instead use probabilistic bits, or p-bits, which fluctuate stochastically between 0 and 1 by using intrinsic physical randomness.

Because p-computers can quickly take many states, they are attracting attention as a next-generation computing platform. Among several candidate technologies, spintronics is considered especially promising because nanoscale magnetic devices can naturally generate probabilistic behavior through magnetic fluctuations.

What Quantum Computers Just Proved About Time Is Terrifying

Time is something we experience every day, yet scientists still struggle to fully understand what it really is. Now, advances in quantum computing are allowing researchers to explore some of the deepest mysteries of physics—and the results are raising extraordinary questions about the nature of time itself.

By simulating complex quantum systems that were previously impossible to study, quantum computers are helping scientists test theories about causality, time reversal, and the strange behavior of particles at the quantum level. Some findings appear to challenge our most basic assumptions about how time works.

Researchers are investigating whether time is truly fundamental to the universe or whether it emerges from deeper physical processes we have yet to understand. These ideas may sound like science fiction, but they are being explored by some of the world’s leading physicists.

The implications are profound. If our understanding of time is incomplete, it could affect everything from cosmology and black holes to the future of computing and our understanding of reality itself.

In this video, we examine the groundbreaking quantum experiments, the theories they are testing, and why some scientists believe these discoveries could transform our view of the universe.

Watch until the end to uncover the most mind-bending implications of this research. Don’t forget to LIKE, SHARE, and SUBSCRIBE for more cutting-edge science, quantum mysteries, and incredible discoveries. Comment below: What do you think time really is?

Continue reading “What Quantum Computers Just Proved About Time Is Terrifying” | >

Strange-Particle Decay Comes to Light

In 2003, physicists detected a particle known as the Ds(2317) meson, containing one charm quark and one strange antiquark. That discovery garnered significant attention because of a large discrepancy between the particle’s measured mass (2.317 GeV/c2) and its predicted mass (above 2.4 GeV/c2). Now the Belle and Belle II Collaboration has observed a previously unseen light-emitting decay of the particle [1]. The team’s analysis could help researchers solve the mass puzzle and help them investigate the fundamental forces that bind matter.

To explain the mass discrepancy, scientists have proposed several models for the particle’s internal structure. Each model predicts a specific range of possible values for the probability that the particle will decay by emitting a gamma ray divided by the probability that it will instead emit a pion. If the measured value of this ratio turns out to be above 8.1%, it would favor models in which the meson is a compact quark–antiquark state. Meanwhile, a ratio between 0.5% and 4.25% would align more closely with models in which the particle is an extended state that acts as a “molecule” of two mesons.

Using data from Japan’s KEKB and SuperKEKB electron–positron colliders, the Belle and Belle II Collaboration detected the particle’s gamma-emitting decay at a statistical significance above 10 standard deviations. The team measured the photon-to-pion decay ratio to be about 7%, smaller than that predicted by most quark–antiquark models but larger than that predicted by most molecular models. The researchers anticipate that pinning down the meson’s structure could entail measuring the particle’s total decay rate.

Physicists identify upper limit to resistivity in a pure metal

Experimental atomic physicists have discovered there is a maximum amount of electrical resistance, or resistivity, that can result from collisions between electrons.

A team from the University of Toronto, L’École Normale Supérieure in Paris, and Lehigh University in Pennsylvania studied ultracold potassium atoms cooled to near absolute zero. They found that when increasing the rate at which atoms collide, the resulting resistance eventually stops increasing, offering new insights into what causes resistivity at the microscopic level.

“Electron-on-electron collisions are known to increase resistivity in some pure materials,” explains Professor Joseph Thywissen in the Department of Physics and the Centre for Quantum Information and Quantum Control in the Faculty of Arts & Science at the University of Toronto, senior author of a study published in Physical Review Letters. “The energy produced by electrical resistance shows up as heat. Transmission lines, for instance, lose up to 8% of generated electrical power. Resistivity is also interesting to study because it can be a signature of new physics in materials.”

Rare B meson decays tighten search for hidden particles and dark matter links

A University of Melbourne researcher has placed the strongest constraints yet on certain rare decays of subatomic particles, narrowing the window for where new “hidden” particles could be lurking.

In research published in Physical Review Letters, Dr. Daniel Marcantonio analyzed data from the Belle experiment to search for “feebly interacting particles” (FIPs)—a broad class of hypothetical particles that interact extremely rarely with ordinary matter.

FIPs are predicted by many theories that extend our current understanding of particle physics, and some could serve as candidates for dark matter or as messengers between ordinary matter and a hypothetical “dark sector.”

High degree of quantum entanglement detected for first time in centimeter-sized crystal of strange metal

Many quantum effects can be observed only when a small number of particles is studied—individual atoms, molecules or photons, for example, carefully shielded from the rest of the world. But what about macroscopic objects, consisting of an unimaginably large number of particles? Can they, too, display effects that provide a direct glimpse into the quantum world?

Experimentalists at TU Wien have now shown that this is possible: A centimeter-sized crystal of a so-called strange metal was investigated, and a high degree of quantum entanglement was detected. This was made possible by a clearly defined method from quantum information theory: the quantum Fisher information.

It establishes a new bridge between solid-state physics and quantum physics: Quantum entanglement can be directly quantified in a macroscopic strange-metal material. The paper is published in the journal Nature Physics.

Testing the problem of time with cold atoms

An ultracold atomic gas is used as a self-contained miniuniverse to show that time can be defined without an external clock. It’s demonstrated that entropy exchange between different sectors of the system provides an internal time that robustly orders the dynamics and yields a Schr\ odinger description of the observed evolution.

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