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ULTRAFAST HOT-PHONON EFFECTS DRIVING TRANSIENT DISTORTIONS IN DIAMOND DEFECT STRUCTURES
ULTRAFAST HOT-PHONON EFFECTS DRIVING TRANSIENT DISTORTIONS IN DIAMOND DEFECT STRUCTURES
The study investigates how excited phonon populations rapidly alter the atomic configuration of diamond defects under ultrafast energy deposition conditions.
Results demonstrate that transient hot-phonon lifetimes directly influence defect geometry and electronic structure, offering insight into ultrafast materials dynamics.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: APS Physical Review Letters
The IceCube neutrino telescope has observed highly energetic neutrinos coming from NGC 1068, along with a faint gamma-ray signal, suggesting a different mechanism of production than what was previously believed.
Theoretical physicists from UCLA, the University of Osaka, and the University of Tokyo Kavli Institute for Physics and Mathematics of the Universe (Kavli IPMU, WPI) have been using their observations of NGC 1068 to propose a completely new route by which neutrinos can be produced.
Source: APS Physical Review Letters
Is it possible for light to become solid? Surprisingly, in the tiny world of quantum physics, it just might be.
In a recent groundbreaking study, a team of researchers succeeded in creating a strange, hybrid state of matter that combines the structure of a solid with the frictionless flow of a superfluid.
A direct influence of quantum information, encoded in entanglement entropy, on spacetime curvature has been proposed in a new study published in Annals of Physics.
The study introduces an "informational stress-energy tensor" into Einstein’s equations, proposes corrections to Newton’s constant, and establishes a link between quantum entanglement to gravitational dynamics near black holes and during early-universe events.
Source : Annals of Physics
A new study titled "Extending the Bridge Connecting Chiral Lagrangians and QCD Gaussian Sum-Rules for Low-Energy Hadronic Physics" presents important progress in understanding the strong nuclear force—an essential interaction that binds protons and neutrons within atomic nuclei and is crucial to the structure of matter.
This framework connects the intricate realm of hadrons—composite particles like protons, neutrons, and mesons—to their fundamental quark composition.
Source: APS Physical Review Letters
Dark matter is thought to account for roughly 85% of the universe's matter, yet it has never been directly observed. Scientists infer its presence solely through the gravitational influence it exerts on cosmic structures.
Zimmermann said, "Through the lens of astrophysics, a productive way to constrain the properties of dark matter is to extract from observations what it is not. In this work, we establish a new fundamental limit on the mass of the dark matter particle, assuming it falls into the ultralight boson category."
Source: APS Physical Review Letters
Quantum researchers have solved a long-standing challenge by developing a technique that accelerates measurements while maintaining accuracy—an essential breakthrough for advancing quantum technology.
By strategically introducing additional qubits, the researchers exchanged “space” for time, enabling faster data collection without disrupting delicate quantum systems.
Source: APS Physical Review Letters
"The time direction of the space-time surface also shows curvature. There is evidence showing the closer to a black hole we get, time moves slower,” says Tippett. “My model of a time machine uses the curved space-time—to bend time into a circle for the passengers, not in a straight line. That circle takes us back in time.”
Although this form of time travel can be represented with a mathematical equation, Tippett is skeptical that a machine capable of making it a reality will ever be built.
Source: https://news.ok.ubc.ca/.../ubc-instructor-uses-math.../...
Scientists from the University of Otago and the University of Canterbury have, for the first time, successfully simulated the complete cause-and-effect process of gravitational wave scattering in a single model.
"We showed, for the first time, that it's possible to follow a gravitational wave as it travels through a black hole's curved spacetime from the infinite past to the infinite future," explained Dr. Stevens.
Source: APS Physical Review Letters
When placed under a powerful laser field, electrons can temporarily cross the so-called quantum tunneling barrier, an energy barrier that they would typically be unable to overcome.
Despite the potential for measuring the tunneling time of electrons, most attoclocks developed to date have had significant limitations and have been unable to yield reliable and conclusive measurements.
Edited by: Meshan Navod
Source: APS Physical Review Letters
Physicists used nanolithography to etch a 35 µm violin, showcasing extreme precision for future nanoscale research applications.
This tiny violin project now drives research into energy-efficient memory, using light, magnetism, and electricity to study material behavior.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source :
https://www.lboro.ac.uk/.../worlds-smallest-violin-using.../
MIT physicists observed p-wave magnetism in 2D nickel iodide, where spins form electrically switchable spiral patterns.
The experiment directly demonstrated controllable magnetic chirality without external magnetic fields in an atomically thin material.
Content by: Gayasha Muthumali
Edited by : Meshan Navod
Source: https://news.mit.edu/.../physicists-observe-new-form...
Oxford physicists simulated quantum vacuum interactions, showing intense lasers can create light from darkness through photon-photon scattering.
The simulations reveal how beam geometry and timing affect quantum signatures, guiding future high-power laser experiments in fundamental physics.
Content by: Gayasha Muthumali
Edited by : Meshan Navod
Source:
A bold new theory proposes time has three dimensions, suggesting space is not fundamental but emerges from temporal geometry.
The model accurately predicts particle masses and preserves causality, offering a fresh path toward unifying gravity with quantum theory.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: https://www.uaf.edu/.../uaf-professors-work-is-a-step...
New ultra-precise calcium isotope-shift measurements reveal King plot nonlinearity, explainable by nuclear polarization, enhancing limits on fifth-force bosons.
Researchers constrain Yukawa‑like forces via nonlinear King plot in calcium, tightening boson mass limits between 10 eV/c² and 10⁷ eV/c².
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: APS Physical Review Letters
Researchers used a superconducting magnet to levitate a particle in vacuum, enabling a highly sensitive search for ultralight dark matter.
The experiment showed no dark matter signal but successfully demonstrated a novel platform for testing fundamental physics in unexplored regimes.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: APS Physical Review Letters
Researchers at Brown University found new particle-like states in graphene that appear under strong magnetic fields, called fractional excitons.
These uncharged particles exhibit hybrid quantum statistics combining bosonic and fermionic behavior, suggesting new quantum phases and potential computing applications.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: https://www.brown.edu/news/2025-01-08/new-quantum-particles
In niobium superconductors, terahertz pulse pairs create a Higgs grating in the energy gap, leading to unexpected quantum echo signals.
These echoes show asymmetric delays and reverse-time features due to Higgs–quasiparticle coupling and broadening, differing from typical photon echoes.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
UTA researchers discovered a new magnetic anisotropy in iron oxide nanoparticles under extreme pressure, enabling strong magnets without rare-earth metals.
This breakthrough could yield cost-effective, sustainable magnets for consumer electronics, electric vehicles, and medical devices by harnessing abundant iron oxide.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: https://www.uta.edu/.../2025/07/17/powering-next-gen-devices
A femtosecond laser heated nanoscale gold so quickly that it couldn’t expand, allowing temperatures far beyond its melting point.
By avoiding entropy-driven melting, the study reveals a new state where solids can survive extreme thermal conditions.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: https://www6.slac.stanford.edu/.../2025-07-23-limit-does...
Strong electron-hole interactions in a layered material give rise to a topological excitonic insulator with tunable momentum-space order.
This phase emerges from strong Coulomb interactions and band topology, enabling momentum-selective exciton condensation with potential for novel quantum technologies.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
AI-generated designs for 3D materials enable fine control of optical properties by shaping how light bends and propagates through structures.
These customizable materials open new possibilities for advanced lenses, cloaking devices, and optical circuits by guiding light in unconventional ways.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: https://phys.org/.../2025-07-ai-3d-materials-enable...
Researchers tested if ultralight dark matter interactions cause time-varying neutrino masses, analyzing KamLAND data for oscillation pattern deviations.
Results strongly reject such mass variation mechanisms for dark matter masses below 10⁻¹⁴ eV, with statistical significance reaching approximately four standard deviations.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: APS Physical Review Letters
Researchers at the Institute of Photonic Sciences (ICFO) in Spain used specially twisted graphene layers to detect single photons, even in mid-infrared light, at around 25 K.
By exploiting a light-triggered state change in twisted 2D material stacks, the team overcame the need for ultra-low cryogenic cooling for infrared single-photon detection.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: https://phys.org/.../2025-08-bottleneck-photon-2d...
A quantum-inspired pixel–particle analogy applies full quantum localization mathematics to denoise ultrasound and MRI images more effectively than traditional methods.
Researchers formalize particle vibration analogies for pixel intensity spread, enabling automated noise suppression in medical imaging without manual parameter tuning.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: https://phys.org/.../2025-08-pixel-particle-analogy...
A metal-oxide crystal composed of strontium, iron, and cobalt can repeatedly absorb and release oxygen at low temperatures without structural damage.
This reversible oxygen “breathing” crystal enables innovations in fuel cells, adaptive thermal transistors, smart windows, and eco-friendly energy-saving electronic devices.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
The LHCb collaboration observed the extremely rare Σ⁺ baryon decay into a proton and two muons, confirming fundamental predictions of the Standard Model.
Using 13 TeV proton–proton collisions, researchers recorded 237 decay events, measuring a branching fraction near 1×10⁻⁸ with remarkable statistical significance.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: APS Physical Review Letters
On-chip quantum emitters coupled to engineered metasurfaces convert emitter-excited surface plasmon polaritons into customizable photon emission with controllable directionality, polarization, and intensity.
The platform enables independent experimental control over polarization states, emission directionality, and relative amplitudes across multiple radiation channels for integrated photon sources.
Content by: Gayasha Muthumali
Edited by: Akila Sooriyabandara
Source: APS Physical Review Letters
Two superconducting quantum processors, separated by 30 cm and connected through a coaxial cable, perform high-fidelity entangling gates using standing-wave modes.
They achieved superior cross-entropy benchmarking fidelities for CNOT and CZ gates compared to state-transfer and feedback protocols, advancing scalable distributed quantum architectures.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: APS Physical Review Letters
ATLAS has found signs that the Higgs boson can decay into two muons, confirming its link to lighter particles.
The team also sharpened their ability to spot Higgs decays into a Z boson and photon, opening doors to new discoveries.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
The study demonstrates that above-bandgap UV laser excitation (266 nm) of BaTiO₃ triggers ultrafast decoupling of polarization from strain, detectable within ~350 fs and persisting for tens of picoseconds, via Ti–O bond softening through charge transfer.
It establishes that photoexcited electrons largely determine the ferroelectric polarization out of equilibrium, rather than mechanical strain—presenting a pathway toward light-controlled ferroelectric engineering beyond conventional strain-based methods.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Researchers at the University of Colorado Boulder have created a novel time crystal using liquid crystals visible even without microscope.
Filling glass cells with rod-shaped liquid crystals and shining light induced perpetual, swirling patterns observable by eye or optical microscope.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
This study investigates how gravitational waves from binary black hole mergers induce electromagnetic effects in spacetime, revealing novel interactions.
The authors employ tetrad formalism to model these effects, offering insights into spacetime’s electrodynamic properties during collisions.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: APS Physical Review Letters
MIT researchers discovered a chiral superconductor that conducts electricity without resistance while also displaying intrinsic magnetism.
This rare state emerged in graphite flakes with rhombohedral graphene stacking, challenging traditional views of superconductivity and magnetism.
Content by: Aloka Madhurabashini
Edited by: Meshan Navod
Source: https://news.mit.edu/.../mit-physicists-discover-new-type...
Researchers investigated Pt–Rh core–shell nanoparticles using advanced spectro-microscopy, revealing competitive processes of oxidation, alloying, dewetting, and sintering under controlled gas environments.
The study shows rhodium diffuses into platinum at high temperatures, where alloying competes with oxidation, depending on nanoparticle facets.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Scientists propose that superheavy, electrically charged gravitinos may serve as unique dark matter candidates, detectable by upcoming underground neutrino observatories.
Their extraordinary rarity and massive nature enable them to remain unseen, offering a radical departure from conventional neutral candidates like axions and WIMPs.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: https://phys.org/news/2025-09-gravitino-candidate-dark.html
Scientists demonstrated ultrafast magnetization control at boundaries between magnetic domains, surpassing limits of earlier optical methods for data technologies.
This breakthrough enables precise manipulation of spin states, offering potential for faster, energy-efficient memory and advanced quantum information processing applications.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: https://phys.org/news/2025-09-ultrafast-magnetization-boundary-previous-optical.html
Researchers revealed a hidden ferroaxial electronic order in rare-earth tritellurides, linked to intertwined charge and orbital patterns.
Their experiments combined optics and muon spin relaxation, confirming the electronic origin of this phase, advancing condensed matter physics understanding.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: https://phys.org/news/2025-09-rare-earth-tritellurides-reveal-hidden.html
MIT physicists proposed a neutrino laser, using super-cooled radioactive atoms to produce amplified neutrino beams for research and communication.
Their calculations show rubidium-83 atoms in a quantum state could rapidly decay, emitting intense neutrino bursts in tabletop experiments.
Content by : Aloka Madhurabashini
Edited by : Meshan Navod
Source : https://news.mit.edu/2025/physicists-devise-idea-lasers-shoot-beams-neutrinos-0908
These innovative 3D-printed carbon nanotube sensors demonstrate exceptional flexibility and sensitivity, making them highly promising for continuous, noninvasive health monitoring applications.
Researchers highlight their lightweight, customizable design, enabling seamless integration into wearable devices for real-time tracking of physiological signals and early disease detection.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: https://phys.org/news/2025-09-3d-carbon-nanotube-sensors-potential.html
A provable photonic quantum advantage was demonstrated, where a quantum-enhanced learning protocol was implemented using imperfect Einstein–Podolsky–Rosen entanglement.
A reduction in sample complexity by 11.8 orders of magnitude compared with classical methods was achieved using entangled photons.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Gomb-Net separates moiré interference to determine each layer’s atom positions and chemical species with high precision.
The technique shows how atoms arrange in complex layered materials, helping scientists better understand their structure and possible electronic behaviors.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: https://pubs.acs.org/doi/10.1021/acs.nanolett.5c01460
Scientists have solved a 100-year-old momentum mystery, showing how overlooked factors influence particle interactions.
The discovery reshapes fundamental physics by revealing hidden dynamics that alter our understanding of momentum conservation in complex systems.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: https://phys.org/news/2025-09-century-puzzle-momentum.html
Researchers observed that vortices in two-dimensional ⁴He superfluid films can undergo vacuum tunneling, revealing unexpected quantum behaviors at ultralow temperatures.
This study provides insight into superfluid dynamics, showing that quantum tunneling significantly influences vortex motion and macroscopic fluid properties in thin films.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Researchers have observed that ice, traditionally considered rigid, can bend and deform at the nanoscale under specific experimental conditions.
This discovery challenges conventional understanding, suggesting that nanoscale ice could have unique mechanical properties relevant for cryotechnology and materials science.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: https://phys.org/news/2025-09-chilling-discovery-flexibility-ice-nanoscale.html
The study demonstrates entangled photon pairs significantly improve imaging resolution, providing a promising path toward advanced quantum-enabled microscopy applications.
By exploiting quantum correlations, researchers achieved sensitivity beyond classical imaging, revealing new possibilities for biological imaging and nanoscale structural analysis.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: https://opg.optica.org/optica/fulltext.cfm?uri=optica-12-10-1569&id=581696
The 2025 Nobel Prize in Physics honors John Clarke, Michel H. Devoret, and John M. Martinis for demonstrating quantum tunnelling and energy quantisation in electrical circuits.
Their groundbreaking work proved that quantum effects can manifest at macroscopic scales, revolutionizing our understanding of quantum mechanics and circuit-based quantum technologies.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: https://www.nobelprize.org/uploads/2025/10/advanced-physicsprize2025.pdf
Magnetic skyrmions reveal extraordinary quantum behaviors that redefine spintronics and ultra-efficient information storage.
Their topological robustness unlocks transformative possibilities for future quantum technologies and nanoscale computing.
Content by : Gayasha Muthumali
Edited by : Meshan Navod
Source: APS Physical Review Letters
https://journals.aps.org/rmp/abstract/10.1103/RevModPhys.97.031001
MIT researchers developed the Discrete Grid Imaging Technique (DIGIT) to pinpoint atomic positions in materials using optical microscopy.
This breakthrough achieves 0.178 Å precision, advancing quantum device design and atomic-scale material analysis.
Content by : Aloka Madhurabashini
Edited by : Meshan Navod
Source : https://news.mit.edu/2025/seating-chart-atoms-helps-locate-their-positions-materials-1022
A high-intensity circularly polarised laser pulse propagates through a near-critical solid microtube to resonantly excite cylindrical surface-plasmon-polariton modes.
The resulting helical modulation of accelerated electrons along the tube surface generates coherent synchrotron radiation with significantly enhanced intensity and isolated harmonic features.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: APS Physical Review Letters
https://link.aps.org/doi/10.1103/cnym-16hc
Recent research investigates enhanced electromagnetic memory, examining how persistent gauge field imprints may encode detailed information about radiation events across spacetime.
The study proposes novel theoretical frameworks and computational techniques designed to amplify electromagnetic memory signals, facilitating refined probes of asymptotic symmetries.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: APS Physical Review Letters
Optical tweezers serve as a highly sensitive instrument for measuring electric charge on micron-scale particles in liquids, air, or vacuum.
The trapped silica microparticle gradually accumulates charge from the laser light, allowing researchers to precisely monitor its charging behavior through optical-force-based measurements.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: APS Physical Review Letters
The authors probe the molecule’s wave-function spread in helium nanodroplets by analyzing angular nodal structures via photoelectron momentum distributions.
They observe that light H₂ shows minimal electron scattering and clear nodal patterns (delocalized), whereas heavier D₂ or O₂ produce blurred patterns (localized).
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: APS Physical Review Letters
The study investigates how excited phonon populations rapidly alter the atomic configuration of diamond defects under ultrafast energy deposition conditions.
Results demonstrate that transient hot-phonon lifetimes directly influence defect geometry and electronic structure, offering insight into ultrafast materials dynamics.
Content by: Gayasha Muthumali
Edited by: Meshan Navod
Source: APS Physical Review Letters
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