US researchers at little explored area of quantum geometry to improve performance of superconductors at higher temperatures.
Category: quantum physics – Page 29
Study Suggests Quantum Entanglement May Rewrite the Rules of Gravity
A new study proposes that quantum information, encoded in entanglement entropy, directly shapes the fabric of spacetime, offering a fresh path toward unifying gravity and quantum mechanics.
Published in Annals of Physics, the paper presents a reformulation of Einstein’s field equations, arguing that gravity is not just a response to mass and energy, but also to the information structure of quantum fields. This shift, if validated, would mark a fundamental transformation in how physicists understand both gravity and quantum computing.
The study, published by Florian Neukart, of the Leiden Institute of Advanced Computer Science, Leiden University and Chief Product Officer of Terra Quantum, introduces the concept of an “informational stress-energy tensor” derived from quantum entanglement entropy.
Twist of light: Non-reciprocity in photon polarization may unlock gravity and quantum mechanics link
A team of physicists has uncovered a surprising new way to explore one of science’s greatest challenges: uniting the two fundamental theories that explain how our universe works—Einstein’s theory of gravity and quantum mechanics.
Despite decades of effort, no one has fully explained how gravity—which governs massive objects like planets and stars—fits with quantum mechanics, which describes the behavior of the tiniest particles in the universe. But now, scientists believe light may hold the key.
Warner A. Miller, Ph.D., co-author and a professor in the Department of Physics at Florida Atlantic University’s Charles E. Schmidt College of Science in collaboration with scientists at the University of Seoul and Seoul National University, South Korea, found that light’s polarization —the direction it vibrates as it travels—can behave in an unexpected way when passing through curved space. Normally, this polarization shifts slightly due to the warping of space by gravity, a well-known effect.
Switchable singlet fission: pH triggers molecules to split or emit light for sensors
An international team of researchers has successfully controlled the flow of energy in a molecule with the help of its pH value. The results of the study, led by Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), could contribute to the development of new sensors for medical diagnostics, for example.
The findings are also of interest for building more efficient solar cells and for use in quantum computing. The results have been published in the journal Nature Communications.
A process called singlet fission is at the center of the study. In future generations of solar cells, it should improve the utilization of light and thus increase efficiency. Until now, a large proportion of the energy that shines onto solar cells is lost and released as heat.
The Dark Photon Theory That Could Rewrite Quantum Physics
Could light’s behavior in the double-slit experiment be explained without waves? Discover the groundbreaking “dark photon” theory that’s turning quantum physics on its head. Dive into how bright and dark photon states could rewrite our understanding of interference, measurement, and reality itself. Watch now!
Paper link: https://journals.aps.org/prl/abstract… 00:00 Introduction 01:17 Rethinking the Double-Slit — Not a Wave After All? 04:10 Bright vs. Dark — Redefining Reality Through Detection 07:10 Implications and Related Discoveries — From Theory to Possibility 10:04 Outro 10:26 Enjoy MUSIC TITLE : Starlight Harmonies MUSIC LINK : https://pixabay.com/music/pulses-star… Visit our website for up-to-the-minute updates: www.nasaspacenews.com Follow us Facebook: / nasaspacenews Twitter:
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MIT physicists snap the first images of “free-range” atoms
MIT physicists have captured the first images of individual atoms freely interacting in space. The pictures reveal correlations among the “free-range” particles that until now were predicted but never directly observed. Their findings, appearing today in the journal Physical Review Letters, will help scientists visualize never-before-seen quantum phenomena in real space.
The images were taken using a technique developed by the team that first allows a cloud of atoms to move and interact freely. The researchers then turn on a lattice of light that briefly freezes the atoms in their tracks, and apply finely tuned lasers to quickly illuminate the suspended atoms, creating a picture of their positions before the atoms naturally dissipate.
The physicists applied the technique to visualize clouds of different types of atoms, and snapped a number of imaging firsts. The researchers directly observed atoms known as “bosons,” which bunched up in a quantum phenomenon to form a wave. They also captured atoms known as “fermions” in the act of pairing up in free space — a key mechanism that enables superconductivity.
Silicon spin qubits gain ground as a leading candidate for quantum computing
In the rapidly evolving field of quantum computing, silicon spin qubits are emerging as a leading candidate for building scalable, fault-tolerant quantum computers.
A new review titled “Single-Electron Spin Qubits in Silicon for Quantum,” published in Intelligent Computing, highlights the latest advances, challenges and future prospects of silicon spin qubits for quantum computing.
Silicon spin qubits are compatible with existing semiconductor industry manufacturing processes, making them promising for universal quantum computers. They have several remarkable properties.
Dancing Between Atoms and Galaxies: A Smooth Continuum of Scales
The notion that the quantum realm somehow sits sealed off from the relativistic domain has captured popular imagination for decades. Perhaps this separation is comforting in a way, because it assigns neat boundaries to a notoriously complex theoretical landscape. Yet, a careful look at both cutting-edge research and historical development suggests that no such invisible barrier actually exists. Early quantum pioneers such as Planck (1901) and Heisenberg (1925) laid foundations that seemed confined to the minuscule domain of atoms and subatomic particles. Before long, Einstein (1916) showed us that gravity and motion operate in ways that defy purely Newtonian conceptions, especially at cosmic scales. Despite the apparent chasm between the quantum and relativistic descriptions, threads of continuity run deeper than we once imagined. The famous energy discretization proposed by Planck was intended to solve classical paradoxes at microscopic scales, but the fundamental constants he unveiled remain essential at any size, linking the behavior of infinitesimal systems to grand cosmic events.
Modern experiments push this continuity further into the mainstream conversation. Quantum coherences documented in biological processes illuminate the reality that phenomena once labeled “strictly quantum” can permeate living systems in everyday environments (Engel et al., 2007). Photosynthesizing cells exploit wave-like energy flows, migratory birds appear to navigate using subtle quantum effects, and intriguing evidence suggests that neuronal microtubules might process information at scales once deemed too large for quantum behavior (Hameroff, 1998). If relativity reliably predicts how massive objects curve spacetime, and quantum theory demonstrates how particles and fields manifest as discrete excitations, then the missing piece in unifying these perspectives may hinge on the realization that neither domain is airtight. We stand on a continuum of phenomena, from photosynthetic molecules absorbing photons to astrophysical bodies warping spacetime.