Articles tagged with Quantum Information Science
Rice University engineers have demonstrated a way to control the optical properties of T centers, paving the way toward leveraging these point defects for building quantum nodes. By embedding a T center in a photonic integrated circuit, they increased the collection efficiency for single photon emission by two orders of magnitude.
Researchers have successfully transferred electron spin to photons, enabling rapid communication over long distances. This breakthrough could revolutionize optical telecommunications and pave the way for ultrafast communication between Earth and Mars.
Researchers have created a new quantum algorithm, CVQE, that can simulate electronic systems and study physical properties. This breakthrough could lead to faster calculations and more accurate predictions in materials science and chemistry.
Researchers have developed a scalable, fully-coupled annealing processor that outperforms simulating a fully coupled Ising system on a PC by 2,306 times. The processor incorporates 4096 spins and uses parallelized capabilities for accelerated problem-solving.
Researchers aim to create a nuclear clock using thorium isotopes, which could increase measurement accuracy by a factor of 3. The project uses light with orbital angular momentum to excite the nucleus, emitting photons that can be detected. This technology has the potential to answer fundamental questions in physics and astronomy.
The Optical Fiber Communications Conference and Exhibition (OFC) 2024 will feature cutting-edge tech demonstrations, including quantum technology advancements, 800ZR and Coherent PON. Industry leaders will discuss the latest in optical technology, with a focus on innovation and connectivity.
Researchers have developed a new method to verify the accuracy of complex quantum systems using classical computers. The method allows for estimating error rates and is mathematically sound, providing a benchmark for analyzing errors in quantum computing systems. This breakthrough enables improvements to be measured effectively.
Researchers identified the origin of a discrepancy between experimental and theoretical values of the muon's magnetic moment. The study found that lattice QCD and electron-positron collision data disagree, highlighting the need to resolve this puzzle.
Researchers propose a scalable parallel scheme for ultrafast random bit generation using a single micro-ring resonator, enabling hundreds of independent and unbiased streams. The method reaches a 320 Gb/s generation rate per channel, with potential for further enhancement.
Researchers from Ames National Laboratory identified miassite, a rare mineral, as an unconventional superconductor with properties similar to high-temperature superconductors. The discovery could lead to more sustainable and economical technology using this type of superconductivity.
The Institute for Molecular Science (IMS) is accelerating the development of novel quantum computers based on 'cold (neutral) atom' technology, leveraging expertise from 10 industry partners. The partnership aims to launch a start-up company and develop practical applications of quantum computers by end FY2024.
Researchers used density functional theory to identify possible europium compounds as a new quantum memory platform. They synthesized one of the predicted compounds, Cs2NaEuF6, which is an air-stable material that could be used in scalable quantum computing.
Researchers developed an approach called Quantum Noise Injection for Adversarial Defense (QNAD) to protect quantum computers from attacks. The method introduces noise into the quantum neural network, making it more accurate during an attack.
Nai-Hui Chia, an assistant professor of computer science at Rice University, has received a National Science Foundation CAREER Award to develop a new theoretical framework for efficient quantum algorithms. The grant aims to enhance the security of quantum cryptography and tackle complex problems in physics and machine learning.
Physicists have developed a method to make quantum signals accessible again by analyzing simultaneous changes in states of multiple sensors. This approach enables precise measurement of magnetic field variations and distance between sensors, outperforming entanglement-based methods.
Scientists at NUS developed an AI-enabled atomic robotic probe to fabricate carbon-based quantum materials at the atomic scale. The CARP concept utilizes deep neural networks to autonomously synthesize open-shell magnetic nanographenes with precise engineering of their π-electron topology and spin configurations.
Yonglong Xie, a Rice University assistant professor, has received an $888,555 NSF CAREER Award to explore magnon-based quantum technology. He aims to create synthetic matter and next-generation devices with unprecedented functionalities.
Scientists have successfully engineered a high-performing niobium-based qubit that rivals state-of-the-art qubits in their class. The breakthrough expands the possibilities of future quantum technologies, including quantum computers, networks, and sensors.
Researchers at Paderborn University have developed a new method for determining the characteristics of optical quantum states using photon detectors, enabling precise knowledge essential for quantum computing and information processing.
Scientists at Tokyo University of Science used deep learning to predict single-molecule magnets from a pool of 20,000 metal complexes, identifying 70% accuracy in distinguishing between SMMs and non-SMMs.
A team of scientists has created a new optical neural network architecture that uses orbital angular momentum to learn data features of images, achieving high-precision intelligent encoding and decoding. This method has been tested with success in various tasks, including image classification and secure free-space transmission.
Scientists have developed a method to construct high-dimensional quantum gates using diffractive neural networks, exhibiting ultrahigh fidelities. They successfully implemented various quantum gates and demonstrated the applicability of their approach by performing complex operations like the Deutsch algorithm.
Researchers at UNSW Sydney have successfully encoded quantum information in four distinct ways using a single antimony atom. This breakthrough enables more flexibility in designing future quantum computing chips, with each method offering unique advantages and potential trade-offs.
Researchers at TU Darmstadt have successfully demonstrated a quantum-processing architecture with over 1,000 individually controllable atomic qubits. This breakthrough enables the development of highly beneficial applications in fields such as drug development and traffic optimization.
Scientists successfully observed and controlled quantum effects at room temperature using a novel optomechanical system. The breakthrough enables practical applications of quantum technologies and expands the study of macroscopic quantum mechanics.
Researchers at Waseda University studied the behavior of chiral skyrmions in chiral flower-like obstacles and found that they exhibit active matter-like behaviors. The system can be used to develop a topological sorting device, which may create ordered results from disordered motion.
Classical computers outperform quantum ones in speed and accuracy thanks to a new algorithm that efficiently simulates tensor networks. The breakthrough could revolutionize computations by leveraging classical computing's strengths.
Scientists at Shanghai Institute of Microsystem and Information Technology enhance the photon-number-resolving capability of single-photon detectors by widening superconducting strips. This results in better dynamic range and fidelity, enabling true-photon-number resolution up to 10.
Researchers use advanced electron microscopy and computational modeling to understand tantalum oxide formation, which can impede qubit performance. The study reveals a 'suboxide' layer at the interface between tantalum and oxide, with ordered crystalline lattice features.
Researchers found that a thin layer of magnesium significantly improves tantalum's purity and raises its operating temperature as a superconductor. This could lead to increased quantum information retention in qubits, ultimately benefiting quantum computing.
A team of researchers from the universities of Mainz, Olomouc, and Tokyo has successfully generated a logical qubit from a single light pulse that can correct errors. This breakthrough uses a photon-based approach to overcome the limitations of current quantum computing technology.
West Virginia University engineer Yuhe Tian is developing powerful artificial intelligence tools that can reimagine the sustainability of chemical manufacturing. She aims to harness quantum intelligence to innovate environmentally friendly chemical plant designs.
Researchers at Kyoto University have developed a novel method for quantum infrared spectroscopy, generating a wider range of infrared photons with improved sensitivity. This breakthrough enables compact, high-performance scanners for various applications in environmental monitoring, medicine, and security.
Physicists at the University of Colorado Boulder have discovered a way to create scenarios where information can remain stable in quantum computer chips, potentially leading to advances in quantum computing. The team's findings could also influence other fields, such as materials science and engineering.
Researchers from Leibniz University Hannover have disproved a previously held assumption about the impact of multiphoton components in thermal fields and parametric single photons. Their experiment reveals a new fundamental characteristic that was not considered in previous calculations, enabling the prediction of quantum interference.
Researchers create supramolecular ink, a game-changing technology for OLED display manufacturing, enabling more affordable and environmentally sustainable products. The material can also be used in wearable devices, luminescent art, and 3D printing.
A team of researchers has uncovered the magnetic phase diagram of non-Heisenberg-type quasicrystals, revealing new insights into their unique properties. The findings open up new doors for understanding the intricate interplay between magnetic interactions in these materials.
Scientists at the University of Basel developed a miniaturized quantum memory that can store photons in tiny glass cells. The innovation enables the mass production of quantum memories, paving the way for future quantum networks and secure communication.
A new experiment could test whether relatively large masses have a quantum nature, resolving the question of whether quantum mechanics works at a larger scale. The proposed experiment exploits the principle of measurement-induced collapse to observe changes in motion.
A new quantum optics technique has been introduced to explore light-matter interactions in semiconductors. The technique, called photon-cascade correlation spectroscopy, uses spectral filtering and photon-correlation analysis to reveal interactions between semiconductor exciton-polaritons.
Scientists achieve room-temperature quantum coherence by embedding a chromophore in a metal-organic framework, enabling the creation of quintet state qubits with four electron spins. This breakthrough could lead to the development of multiple qubit systems at room temperature, revolutionizing quantum computing and sensing.
Entanglement is crucial for quantum computing, and researchers have proposed a condition to maximize it. The study, published in Physical Review B, uses the Hellmann-Feynman theorem as a reference point to explore finite temperature and quantum critical points.
Researchers developed a novel phase imaging technique using intensity correlation measurements that is immune to phase instability. This method can capture high-resolution images of transparent and optically thin samples, such as cell cultures, with improved accuracy.
The new position will focus on quantum information processing, particularly communication and computation. Dr. Nape brings prestigious accolades, including the SAIP Silver Medal and recognition on the Top 200 Young South Africans list.
Researchers explore quantum optical technology to solve scalability and accuracy issues in quantum computing, aiming to develop new drugs faster and more efficiently. Photon-based systems offer a solution by reducing physical components, increasing opportunities for scaling and stability.
Researchers combined diamond and lithium niobate onto a single chip to achieve high efficiency in coupling the two materials. This pairing enables stable and reliable qubits, critical for quantum communication networks and applications.
Researchers from the University of Tokyo have developed a new way to charge quantum batteries using optical apparatuses and the phenomenon of indefinite causal order. This approach enables significant gains in energy storage and thermal efficiency, even with lower power chargers.
Researchers from Jefferson Lab, imec, and Cornell University collaborate to develop ultra-energy-efficient Superconducting Digital electronics for emerging AI and quantum computing technologies. The project aims to improve energy efficiency by 100X and enable both classical and quantum computing.
The São Paulo School of Advanced Science on Quantum Materials will select and support 100 graduate students and young researchers to focus on fundamental, theoretical, and experimental aspects of quantum materials. The program will cover topics like superconductivity, electronic topology, and complex magnetic configurations.
A Harvard University team has created the world's first logical quantum processor, which can encode up to 48 logical qubits and execute hundreds of gate operations. This breakthrough is a significant step toward reliable quantum computing and fault-tolerant quantum computation.
Researchers have discovered a new way to stretch diamond, creating more efficient and controllable quantum bits. This breakthrough could pave the way for the development of industrial-scale quantum networks with reduced infrastructure and operating costs.
Researchers at the University of Innsbruck have developed a new approach to study entanglement in quantum materials. By using a quantum simulator with 51 particles, they were able to extract information about the existing entanglement with drastically fewer measurements than previously thought possible.
The research team created a mathematical model showing that no clock can have both infinite energy and perfect time resolution, setting limits to quantum computer capabilities. This realization impacts the speed and reliability of quantum computers, as current accuracy is limited by other factors.
Researchers have successfully addressed and detected single rare-earth ions within an ensemble of atoms in a nanoparticle, enabling efficient light-matter interaction. This discovery brings researchers closer to creating a robust system for low-loss and fast interface between nodes of the future quantum internet.
Researchers at University of Illinois developed new semiconductor materials that can harness the power of chirality, a non-superimposable mirror image. The study found that subtle molecular changes can modulate chiral helical assemblies, leading to new optical, electronic, and mechanical properties.
A team in China has developed a cost-effective cloud storage solution that uses quantum key distribution and Shamir's secret sharing algorithm to provide quantum security and fault tolerance. The method disperses keys via the algorithm, applies erasure coding, and securely transmits data through QKD-protected networks.
Researchers at Oak Ridge National Laboratory used quantum biology and artificial intelligence to sharpen the CRISPR Cas9 genome editing tool, improving its efficiency on microbes. The new model revealed key features about nucleotides that enable better guide RNA selection.
Scientists at Lancaster University have discovered that superfluid helium-3 behaves like a two-dimensional system when probed with mechanical resonators. This finding has significant implications for our understanding of superfluidity and its potential applications in various fields.
Scientists create a low-cost, room-temperature single-photon light source by doping optical fibers with ytterbium ions, paving the way for affordable quantum technologies. The innovation overcomes cooling system limitations, enabling applications in true random number generation, quantum communication and high-resolution image analysis.
A team of researchers from POSTECH successfully engineered a dual metalens capable of switching between different imaging modes using a single lens. This innovation enables fast mode-switching and acquisition of high-resolution images for applications such as bio-imaging and cellular reactions.