Articles tagged with Speed Of Light
A new optical switch created by an international team could replace electronic transistors in computers, manipulating photons instead of electrons. The device requires no cooling and is fast, with operations per second between 100 and 1,000 times faster than current commercial transistors.
The study determines that the ALT rotational transformation accurately describes the relativistic effects in rotating frames, revealing a fundamental framework for spacetime. The results confirm length contraction and time dilation within an absolute simultaneity framework.
Researchers designed and built two-dimensional arrays of closely packed micro-lasers that achieve power density orders of magnitude higher, paving the way for improved lasers, high-speed computing, and optical communications. The breakthrough enables single-mode lasing with enhanced emission power and increased coherence.
Researchers at Osaka City University have developed a method to exfoliate materials using UV light, achieving the world's fastest rate of 260 microseconds. This breakthrough has the potential to revolutionize photoactuator production and enable precise manipulation in areas inaccessible to traditional power sources.
A recent study published in Physical Review X reveals that the refractive index of dilute atomic gases can only reach a maximum value of 1.7 due to near-field interactions and multiple scattering effects.
Researchers develop compact optical machine-learning decryptors that process information at the speed of light without consuming power. These devices can be integrated on CMOS chips and have a neuron density of over 500 million neurons per square centimeter.
The stellar-mass black hole in the Cygnus X-1 binary system was found to have a mass 21 times that of the Sun and is rotating at a speed close to the speed of light. This discovery challenges astronomers' thoughts on how black holes formed.
A new 3D printing process, developed at Northwestern University, utilizes light to control each layer, increasing precision and speed. The 'on-the-fly' feature enables the printing of complex structures and improves manufacturing flexibility.
Osaka University researchers created light bullets with controllable velocities, opening up opportunities for free-space communication, bio-imaging, and particle acceleration. By deforming pulse-fronts, they can achieve variable velocities during a single propagation path.
Theoretical physicists have shown how a position-dependent mass optomechanical system can slow down light in an optical cavity. This innovation enhances optomechanically induced transparency (OMIT) and has significant applications in quantum information processing, optical switches, and sensing.
Researchers at Rice University have developed a new method for calculating the upper bound of speed limits in quantum matter, which produces more accurate results in some cases. This breakthrough could lead to improved understanding of quantum computing and materials science, as well as more precise numerical algorithms.
Researchers at USC Viterbi have discovered a new kind of dynamic light structure that can rotate around its center and revolve around another axis. This innovation has potential applications in sensing, imaging, manufacturing, and metrology, offering tailored light with novel dynamic motion.
Researchers developed a novel technology to create a sulfur-containing polymer (SCP) film with excellent environmental stability and chemical resistance, exhibiting a high refractive index of 1.9 while being fully transparent in the entire visible range.
Researchers discovered that self-replicating molecules can act as catalysts, speeding up ring formation and exhibiting a primitive form of metabolism. The system uses light energy to power growth, bringing artificial life one step closer.
Researchers have developed a fast CRISPR system that reduces cleavage time from hours to seconds, allowing for high-resolution DNA repair studies and single allele-level genetic editing. The technique uses light-sensitive nucleotides to control Cas9's action, enabling precise control over the editing process.
The UVA team collaborated with Peking University and Caltech to develop a broadest recorded microcomb spectral span, generating light in the ultraviolet to infrared spectrum. This achievement increases the usefulness of microcombs in spectroscopy, optical clocks, and astronomy calibration.
Dr. Andrzej Dragan and Prof. Artur Ekert propose that the features of quantum mechanics can be explained within the framework of special theory of relativity. They show that superluminal solutions naturally lead to non-deterministic events, multiple trajectories, and probability amplitudes, phenomena associated with quantum mechanics.
Researchers confirm Lorentz Invariance holds true at record-breaking high-energy gamma rays, extending the range where relativity's constant speed of light is valid. The High Altitude Water Cherenkov Observatory detected gamma rays from distant galactic sources, providing powerful proof of Einstein's theory.
A miniature double particle accelerator has been built by DESY scientists, recycling some of the laser energy to boost the electrons' energy a second time. The device uses terahertz radiation and achieved an increase in electron energy from 55 to 56.5 kilo electron volts.
A team tracked a black hole's ejecting material using e-MERLIN and other telescopes over months, gaining insight into how black holes feed energy into their environment. The observations revealed ejections moving at near-light speed, with implications for understanding the role of black holes in galaxy growth.
Research from UVM and MITRE shows that near-light-speed differences in stock prices create opportunities for latency arbitrage, costing investors at least $2 billion annually. High-frequency traders exploit faster information systems to buy stocks at better prices and sell them quickly, resulting in significant profits.
The NIST study suggests a new definition for the optical watt based on radiation force and speed, offering a more precise, less expensive and more portable method for measuring light power. The proposed approach also simplifies calculations of mass and force, making it simpler as a primary standard.
Researchers created a compact device to interface with electronic architecture of traditional computers using light-encoded information. The device uses surface plasmon polariton to confine light into nanoscopic dimensions, overcoming the incompatibility between electrical and optical computing.
Researchers have developed a new type of processor called PAXEL, which uses light to speed up computation and increase efficiency. This approach has potential applications in areas such as fog computing, medical testing, and biodefense.
The UCLA researchers have significantly increased the system's accuracy by adding a second set of detectors to the system, representing each object type with two detectors rather than one. The new design takes advantage of parallelization and scalability of optical-based computational systems.
Researchers have successfully transmitted light through a two-dimensional molybdenum diselenide crystal, only one atom thick. The distribution of light polarization in space turned out to be similar to the three-colored rapana, with unique effects of spin-orbit interaction in the crystal.
The catalog includes 17 short and 169 long bursts, providing fresh insights into how gamma-ray bursts work. Astronomers can distinguish the two GRB classes by the duration of their lower-energy gamma rays, revealing clues to the physical mechanisms at play.
Researchers at UCF have successfully controlled the speed of light by reorganizing its energy and mixing space and time properties. This achievement could lead to more efficient optical communication and alleviate data congestion.
The UC3M's FECYT project produces educational videos addressing topics like self-driving vehicles, therapy robots, and rare illnesses, combining humour, scientific discoveries, and ethical dilemmas to engage young viewers.
Researchers used a global network of radio telescopes to detect a compact jet of material expanding at close to the speed of light. The jet's existence challenges previous models of binary neutron star mergers, which suggested it was not possible for such a structure to form.
Researchers observe evidence of a 'hot cocoon' material enveloping a relativistic jet escaping a dying star, providing insight into the earliest moments of a supernova. The discovery was made using a coordinated approach with space- and ground-based observatories.
Researchers have created a method to move intense laser focal points at any speed, including faster than the speed of light. This technique combines a lens that focuses specific colors of light at different locations with chirped-pulse amplification technology.
The HAWC observatory has identified spectacular details of the processes responsible for high-energy radiation in microquasar SS 433. This is a rare opportunity to observe the object in detail, as its jets are directed almost perpendicular to our line of sight.
Researchers have detected matter falling directly into a black hole for the first time, with gas spiraling in at 30% of the speed of light. The discovery sheds light on chaotic accretion and its implications for supermassive black holes.
Researchers at the University of Nebraska-Lincoln have successfully accelerated plasma electrons almost instantly to speeds close to the speed of light using intense laser light pulses. The new application, dubbed an 'optical rocket,' boasts a force nearly trillion-trillion times greater than what astronauts experience in space.
Researchers use light patterns to control bacterial swimming speed and shape, creating 'microbricks' for building microscopic devices. The genetically modified bacteria can be used as living propellers to transport small biological cargoes.
A new 3D-printed optical deep learning network called Diffractive Deep Neural Network (D2NN) has been developed by Xing Lin and colleagues. This system processes information through layers of optically diffractive surfaces that work together to recognize handwritten digits with high accuracy.
A team of scientists presents a new model explaining the effects of quantum spin on relativistic flows of quark-gluon plasma, which can flow at speeds close to light. The model considers the conservation of momentum and takes into account the spin polarization of particles.
The Citizen-Enabled Aerosol Measurements for Satellites project deploys 250 air samplers across Colorado and the Northwest, collecting precise measurements of air quality. The study aims to improve satellite-derived pollution estimates and better understand where air pollution is dirtiest.
Researchers from ITMO University developed a controlled light source based on nanodiamond, doubling emission speed without additional nanostructures. The artificial defects in the diamond crystal lattice enable efficient control of light emission, crucial for quantum computers and optical networks.
Physicists Sebastian Deffner and Anthony Bartolotta developed techniques for describing the thermodynamics of very small systems with high energy, which could lead to a better understanding of the birth of the universe. They found that in their model system, the system was more likely to return multiple particles upon sending in just one.
Researchers have resolved the ambiguity between Ampere's and Gilbert's forms of magnetic force, enabling characterization of particle spin dynamics in inhomogeneous electromagnetic fields. This advance can be applied to precision experiments, including those involving muons and neutrinos.
Weyl fermions, massless particles similar to light, were discovered in materials with strong electron interaction. They move extremely slowly despite no mass, lending unique properties to these materials.
Tingyi Gu, an assistant professor at the University of Delaware, has received a $450,000 grant from the Air Force Office of Scientific Research to develop high-speed and low-power optical interconnects. Her research aims to improve the performance and scalability of devices made with two-dimensional materials.
INRS professor Jinyang Liang has designed an ultrafast, highly sensitive imaging microscope to study living animals. The new technology bridges the gap between biomedical, physics, and engineering fields.
The updated values of Planck Constant and others bring world closer to revised measurement system, ensuring uniformly precise measurements that scale smoothly from almost infinitesimal to enormous. The new definition will redefine the SI's seven base units, including kilogram, kelvin, and ampere.
The Pierre Auger Collaboration has discovered an anisotropy in the arrival directions of cosmic rays above 8 × 10^18 eV, indicating extragalactic origin. This discovery sheds light on the nature of cosmic rays and their possible sources, with further studies underway to pinpoint the locations.
Researchers from the University of Zurich have developed a new camera system that allows drones to capture images in high-speed motion and low light, enabling autonomous flight. This technology can assist search and rescue teams in disaster areas where conventional drones are unable to operate.
Researchers at Hong Kong University of Science and Technology demonstrated a violation of Bell's inequality using frequency-bin entangled narrowband biphotons generated via spontaneous four-wave mixing. This finding suggests the possibility of encoding and decoding qubit information in the time domain.
Researchers have developed three key components for optical communication that work with light, enabling high-performance computers and miniaturized volumes. The innovations utilize surface plasmons to control the propagation of light in matter.
Researchers have predicted a testable figure for the spectral index, which could confirm their theory that the speed of light was variable in the early universe. The team's model suggests a value of 0.96478, close to current estimates, and could lead to modifications of Einstein's theory of gravity.
Physicists at Lomonosov Moscow State University have successfully controlled the polarization of light, reducing its speed by up to 10 times. This breakthrough has significant implications for the development of spatial light modulators, which could enable faster and more efficient data processing in photonic computers.
Astronomers have used X-ray reverberation mapping to map the flow of gas near a newly awakened black hole for the first time. The study provides insights into the 'killer' black hole's hidden structures, revealing high-energy X-rays originate from a compact region near the black hole.
Astronomers from the University of Cambridge have discovered strong winds leaving mysterious binary systems, with speeds exceeding 70,000 km/s. The findings confirm that these sources conceal compact objects pulling in matter at extraordinarily high rates.
Researchers from SMU's Lyle School of Engineering are developing a computer-generated image of an object hidden from sight to create a hologram. The goal is to enable soldiers to 'see' around corners and behind walls, improving their situational awareness.
Researchers used the light echo technique to measure the distance from a young star to the inner edge of its surrounding protoplanetary disk. The study found the inner edge to be relatively thick and determined a distance of approximately 0.08 astronomical units, consistent with theoretical expectations.
The special theory of relativity has been found to be theoretically disproved, leading to questions about related physics theories. The paper reveals that experiments initially thought to demonstrate relativistic effects actually show null or incorrect results.
Researchers have developed a high-performance network infrastructure that is open and programmable, using light to carry internet traffic. This technology has the potential to revolutionize optical network infrastructure, making it accessible to traditional programmers and application developers.
Astronomers have confirmed a proposed explanation for how solar flares accelerate charged particles to nearly the speed of light using the upgraded VLA radio telescope. The new observations support the idea that a termination shock is responsible for accelerating electrons, with results closely matching computer simulations.
Phagraphene, a two-dimensional carbon material, has been predicted to exist through computer simulation. It consists of penta-, hexa- and heptagonal carbon rings and exhibits distorted Dirac cones, allowing electrons to behave like particles without mass. This discovery opens up new possibilities for flexible electronic devices.