Articles tagged with Photons
Researchers from Singapore and UK test a compact device in space that creates and measures pairs of light particles, a precursor to entangled photons. The technology aims to connect powerful quantum computers globally, enabling secure keys for secret messaging.
Scientists have successfully induced quantum coherence in a large number of photons, allowing for complex quantum states to be manipulated and applications for computation and communication to be explored. The findings represent a significant breakthrough in achieving quantum coherence at a macroscopic scale.
The University of Waterloo's IQC developed software to assess QKD protocol security, achieving perfect agreement with previous results and enabling exploration of new protocols. The tool enables users to analyze any protocol in seconds, a significant improvement over months-long efforts.
Researchers from the Henryk Niewodniczanski Institute of Nuclear Physics have observed elastic collisions between photons in heavy ion collisions. The study predicts that some deflected photons could hit detectors installed by ATLAS, CMS, and ALICE projects.
Researchers at the University of Washington have discovered a way to harness light energy by exploiting quantum-level interactions in graphene. By aligning graphene with boron-nitride, they created a superlattice that enables efficient optoelectronics, allowing one photon to transfer its energy to multiple electrons.
Scientists at Washington University in St. Louis use a new instrument to detect light in a way that reveals the atom's evolution and potential control over entangled partners. This approach may enable quantum control and enhance fluorescence imaging.
Researchers from Hebrew University of Jerusalem developed an efficient and compact single photon source that can operate on a chip at ambient temperatures. The device enhances the collection efficiency of single photons by more than a factor of 10 compared to a single nanocrystal without the antenna.
A team of physicists has proposed an experiment that could detect entangled photons directly, paving the way for new applications in quantum physics. The experiment involves amplifying entangled photons 100-fold and using a special technique to preserve their quantum physical effect.
A team of researchers has built a chip that generates multiple frequencies from a robust quantum system producing time-bin entangled photons. This feature can enable multiplexed and multi-channel quantum communications and increased quantum computation information capacity.
Researchers at UC Santa Barbara have developed a system that can transfer optical quantum information to locally stored solid-state quantum formats, enabling quantum communication. The team uses rare earth atoms to store superpositions of zero and one used in quantum computation.
Researchers use compression software to reveal quantum correlations in experimental data, detecting evidence of entanglement between particles. The technique shows a value exceeding zero, proving the system has crossed the classical-quantum boundary.
Researchers create new method to quantify the change in thermal energy storage during phase transition from photon gas to Bose-Einstein condensate, enabling precise measurement of natural constants and potential applications in high-precision thermometry.
Researchers have developed a method that uses laser pulses to identify brain tumors without labeling or staining, providing histological detail comparable to conventional techniques. The technique allows for fast and accurate diagnosis in the operating room, potentially enabling real-time tumor detection before surgery.
Researchers have developed a novel technique to detect special nuclear materials in cargo containers using low-energy neutron and photon imaging. This method can simultaneously measure density and atomic number, while confirming the presence of nuclear materials through unique delayed neutron emission signatures.
Scientists at NIST have developed a miniaturized device to convert photons between frequencies, addressing two critical problems in quantum communication. The new device consumes low power and produces minimal noise, making it suitable for future experiments with single-photon sources.
Researchers at University of Rochester demonstrate twisted light correlations for remote sensing applications, including detecting rotating black holes and object detection by lidar. Random fluctuations in intensity give rise to correlations in twisted beams, offering a new approach without requiring lasers or entangled photons.
Researchers have developed a new method to overcome issues in implementing quantum cryptography, enabling 'unbreakable' encryption at rates of up to 1 megabit per second. This breakthrough promises faster and more secure data transmission, with potential applications in sensitive information sharing.
Scientists successfully shifted the frequency of a single photon, opening up new possibilities for wavelength division multiplexing in optical quantum communication. The breakthrough uses a room-temperature diamond quantum memory to manipulate light at extremely short pulse lengths.
Researchers at OIST Graduate University have made a groundbreaking discovery about the behavior of protons inside ice. They found that protons exhibit locally ordered yet globally disordered patterns, which are rare in nature and occur only in ice.
Researchers have developed hybrid pixel array detectors that can achieve low noise for single-photon detection and spectroscopic imaging. The new technology uses standard components, enabling the creation of larger and more optimized systems.
NIST researchers create a piezo-optomechanical circuit that converts signals among optical, acoustic and radio waves. The system enables manipulating motion of nanoscale beam using energy exchange between phonons and photons.
Scientists have discovered that hybrid lead halide perovskites can recycle light, a finding that could lead to large gains in solar cell efficiency. This process creates a concentration effect inside the cell, enhancing energy efficiency and potentially reaching efficiencies well beyond current silicon-based cells.
Researchers develop a closed formula to reduce motion blur in camera images by optimizing flutter shutter codes for any probability density of expected scene velocities. The formula links optimal codes with velocity distributions and surpasses the previously-established 1.17 bound gain for known velocities.
A research team at the University of Sydney has developed a major breakthrough in generating single photons, enabling the creation of secure cyber security systems. This innovation resolves a key issue holding back password exchange and can be scaled up to generate single photons with 100% probability.
Researchers have achieved a new milestone in quantum physics by entangling three particles of light in a high-dimensional quantum property. This breakthrough has the potential to revolutionize quantum encryption and secure communication, enabling multiple parties to share information with unconditional security.
The mission extends studies initiated by JAXA's Suzaku mission, enabling investigations into black hole motion, element abundances, and galaxy evolution. The SXS instrument features a 36-pixel microcalorimeter array, three-stage adiabatic demagnetization refrigerator, and stronger filters to collect X-ray photons.
New research by Aephraim Steinberg and colleagues shows that quantum particles can exhibit 'surrealistic' behavior, contradicting the De Broglie-Bohm theory's claim of realistic trajectories. The findings suggest that non-locality is key to understanding these seemingly 'surreal' paths.
Astronomer Maxim Pshirkov discovered a new source of gamma-radiation in the Gamma Velorum binary system, confirming that colliding stellar winds generate high-energy photon emission. The system's strong stellar winds produce a photon flux with energies exceeding 100 MeV, detected by Fermi LAT.
Researchers have developed a method to rapidly change electron spins using microwave photons, demonstrating potential for quantum information processing and enhancements in magnetic resonance techniques. The experiment showed an accelerated relaxation of electron spins and the release of a microwave photon in about 1 second.
Researchers at JQI develop interface between photons and single electrons, enabling fast interaction and scalable integration on a chip. This breakthrough advances quantum networks and enables entanglement distribution, secret communication, and complex quantum devices.
Researchers at Aalto University have made a groundbreaking discovery in heat transport, enabling efficient cooling of quantum processors and paving the way for faster and more reliable quantum computing. The innovation uses photons to transfer heat over long distances, surpassing previous limitations.
Researchers at University of Vienna develop nanomechanical device that converts quantum vibrations to light, paving the way for a future quantum Internet. The device allows for connection between different quantum systems, enabling global exchange of quantum information.
An international team has discovered a compact galaxy emitting a large number of ionizing photons, confirming the hypothesis that galaxies were responsible for cosmic reionization. The 'green pea' galaxy J0925 was found to be ejecting ionizing photons with unprecedented intensity.
A team of scientists has found that compact dwarf galaxies, like the green pea galaxy J0925+1403, could explain cosmic reionization by ejecting ionizing photons into the intergalactic medium. This discovery opens a new avenue for understanding the early universe's 14 billion-year history.
NIST researchers developed a new material for detecting photons, capturing more quantum information by reducing jitter by 74 picoseconds. This improvement enables faster communications and higher bit rates, crucial for receiving faint signals reliably in quantum teleportation experiments and physics theories testing.
Researchers developed a new method to test Einstein's General Relativity using brief blasts of rare radio signals from space called Fast Radio Bursts. This method is considered a significant tribute to Einstein on the 100th anniversary of his first formulation of the Equivalence Principle.
Researchers at Osaka University have successfully observed two-phonon quantum interference using two cold calcium ions in ion traps. This achievement demonstrates the shared properties of phonons and photons, paving the way for quantum simulation and interface research.
Researchers at the Max Planck Institute have developed a novel theoretical method to simulate material properties, including the effects of photons. This approach treats particles and photons as a quantum fluid, allowing for accurate descriptions of electron-photon interactions.
Researchers from Linköping University discovered that energy-time entanglement is vulnerable to attack, allowing eavesdropping on traffic without detection. They propose countermeasures to solve the problem.
Researchers detected gamma rays from a rare blazar galaxy, PKS 1441+25, 7.6 billion light-years away, setting new bounds on the extragalactic background light. The observations provide clues to the production of high-energy gamma rays and their interaction with the surrounding environment.
Engineers tested ATLAS's precision by simulating launch vibrations and temperature changes to ensure accurate beam alignment. The automatic steering mechanism adjusts the laser beams to hit specific spots on Earth, generating a precise electrical signal.
Researchers at RIKEN and Kyoto University have developed a new polymer that minimizes photon energy loss in solar cells, leading to higher efficiency and robust conversion of solar energy into electricity. The achievement marks a significant step towards commercializing cheaper and more efficient polymer-based solar cells.
Researchers have developed a mechanism to extract single photons from a stream, enabling practical applications in quantum communication. The discovery relies on a physical effect called single-photon Raman interaction, which allows for the selective capture of individual photons.
Researchers at Lomonosov Moscow State University developed a novel approach to study electron transport chain in living mitochondria using SERS. They successfully observed changes in cytochrome c structure during ATP synthesis and were able to initiate and stop electron transport. This method provides new insights into mitochondrial fu...
Researchers at RMIT University have successfully created photon pairs that fit on a tiny computer chip, enabling ultra-secure telecommunications. This breakthrough paves the way for the development of scalable integrated devices that exploit mixing of polarization on a single photon level.
Researchers demonstrate entanglement's role in quantum mechanics, ruling out local realism with highly correlated particle measurements. The NIST experiment achieves definitive results, surpassing previous studies' limitations.
Researchers have achieved the most extreme entanglement between photon pairs, pushing quantum physics to its limit. The result bolsters confidence in schemes for quantum cryptography and computing.
Scientists at the Niels Bohr Institute have developed a photon contact that can control the transport of photons in a circuit. This breakthrough enables the creation of complex quantum photonic circuits and paves the way for the development of quantum networks based on photons.
Researchers employed new theoretical approach to calculate glueball decay, achieving agreement with experimental data. The f0(1710) resonance is now considered a prime candidate for the long-sought-after glueball, composed of pure gluons.
Scientists have successfully recorded electron orbitals of molecules in all three dimensions using photoelectron spectroscopy. This breakthrough provides long-sought proof of the orbital concept and reveals new physical insights into the underlying photoelectric effect.
Researchers from the Institute of Physical Chemistry of Poland discover that oxygen plays a crucial role in accelerating photodestruction of molecules. By slowing down oxygen permeation through polymer layers, they can extend the lifetimes of these molecules by several hundred times.
Researchers developed a novel method to confine light, allowing for the retention of quantum memories encoded in photons. This breakthrough could lead to hybrid devices using quantum information for communication networks or quantum computing.
Dartmouth Thayer Engineering researchers Eric Fossum and Jiaju Ma have made a breakthrough in light sensing technology, developing pixels that can significantly enhance low-light sensitivity. The new Quanta Image Sensor (QIS) has the potential to improve applications such as security cameras, astronomy, and life science imaging.
Researchers at Argonne National Laboratory create a new surface microscope that allows them to control the chemical environment and image minerals as they react under extreme conditions. The technique, called X-ray reflection interface microscopy (XRIM), enables scientists to study reaction front instabilities in real-time.
Researchers at NIST have teleported quantum information over 100km of optical fiber, four times farther than the previous record. The experiment confirmed that quantum communication is feasible over long distances in fiber.
Scientists from Friedrich Schiller University Jena have created a custom-built ultrafast laser that can produce extremely high-resolution images of materials in real time. By using extreme ultraviolet light streaming at a 100,000 times per second, the researchers achieved an image resolution of 26 nanometers, surpassing previous limits.
Researchers at NIST have successfully bound two photons together, creating a 'molecule' of light with its own force. This breakthrough could lead to significant advancements in technologies such as photon-based computing and sensor calibration, potentially reducing energy losses and increasing efficiency.
Physicists at the University of Basel have created a new type of light source that emits identical single photons, a crucial step towards quantum information technology. The breakthrough uses a semiconductor quantum dot to control nuclear spin, allowing for indistinguishable photons.
A team of scientists from Berkeley Lab and the University of Illinois created a solar cell that absorbs high-energy light at a 30-fold higher concentration than conventional cells. This breakthrough uses quantum dot light-emitters with spectrally matched photonic mirrors to efficiently utilize the high-energy part of the solar spectrum.
Researchers used an enormous X-ray laser to induce a phenomenon that doesn't occur under normal circumstances, resulting in a single higher-energetic X-ray photon. The findings may lead to new ways to diagnose matter in the future.