Articles tagged with Quantum Computing
NIST's quantum logic clock has reclaimed its title as the world's most precise atomic clock, with a systematic uncertainty of 9.4×10^-19, outperforming both NIST's ytterbium and strontium lattice clocks. However, it lags behind in stability, measuring 1.2×10^15 for a 1-second measurement.
A quantum computer has solved a complex chess puzzle using quantum physics, with the solution determined by atomic microscopy. The experiment was designed to demonstrate quantum supremacy for certain optimization problems, and its feasibility is now within reach of laboratory implementation.
Quantum sensors achieve extremely accurate results, surpassing conventional physics limits, enabling precision measurements of molecules and improving gravitational wave detectors. The new approach reduces measurement time by half while maintaining or doubling resolution.
Scientists unveil rigorous quantum mechanical definition of atomic oxidation number, enabling accurate simulations of charge transport in ionic systems crucial to energy technologies and planetary science research. This breakthrough resolves a long-standing conundrum in condensed matter physics.
Researchers developed a new computational method using neural networks to simulate open quantum systems, predicting properties of large-scale quantum systems. This approach addresses the challenges of simulating intrinsically complex tasks with exponentially growing computational power.
Researchers at Iowa State University have demonstrated the ability to control macroscopic supercurrents using terahertz light, a breakthrough that could lead to faster and more efficient quantum computers. This discovery opens up new avenues for electromagnetic design of emergent materials properties and collective coherent oscillations.
A joint team of scientists at UC Riverside and MIT has developed a new heterostructure material system based on gold that can potentially demonstrate the existence and quantum nature of Majorana fermions. The research shows superconductivity, magnetism, and electrons' spin-orbit coupling can co-exist in gold.
Researchers have created a mechanical oscillator that can produce entangled radiation, which could serve as a link between quantum computers and optical fibers. This device has practical value in transferring information between quantum computers.
Researchers have developed a new protocol for storing and releasing single photons, potentially solving critical challenges in quantum computing. The novel protocol uses destructive interference phenomena to prevent leakage and allow photons to be hosted in an embedded eigenstate.
Researchers at the University of Tsukuba developed a novel process for generating coherent lattice waves in silicon crystals using ultrashort laser pulses. This breakthrough may lead to the creation of faster and more efficient quantum computers.
A team of Princeton researchers has successfully controlled Majorana quasiparticles in a setting that makes them more robust. They achieved this by combining a superconductor and an exotic material called a topological insulator, which enables the detection of Majoranas with less susceptibility to heat or vibrations.
Researchers at the University of Innsbruck have developed a quantum sensor that measures visible light particles without destroying them. The innovation, led by Tracy Northup, allows for tailored light fields to be generated through feedback loops, paving the way for future quantum applications.
Researchers at University of Innsbruck discover that digital quantum simulation can retain controlled Trotter errors for local observables, reducing the number of required gate operations. This breakthrough makes digital quantum simulation more accessible to current day quantum devices.
UTSA engineers develop graphene-based logic device using spintronics to improve energy efficiency in battery-dependent devices. The technology aims to reduce power consumption and enhance quantum computing capabilities.
Researchers at the University of Colorado Boulder have developed a new method for trapping single atoms using optical tweezers, achieving an unprecedented 90% success rate. This breakthrough enables the efficient assembly of atom grids, a crucial step towards harnessing quantum computing power.
The new quantum sensor developed by researchers at the University of Waterloo promises significant advancements in long-range 3D imaging and monitoring the success of cancer treatments. The sensors can detect single particles of light with high timing resolution, speed, and efficiency over an unparalleled wavelength range.
Physicists at NIST have cooled a flat crystal of 150 beryllium ions to near-ground state, enabling more realistic quantum simulations and improved sensitivity for sensing weak electric fields and detecting dark matter. This achievement marks a significant advance over previous demonstrations of ion cooling.
Researchers from Tel Aviv University developed a unique spatiotemporal imaging technique to capture the movement of excitons in 2D materials, revealing unprecedented insights into quantum mechanics. The technology enables ultrafast control and extreme spatiotemporal imaging of condensed matter.
Quantum computing aims to break cryptography and speed up database search, but scaling is a significant challenge. Researcher Debbie Leung discusses the ingredients required for accurate quantum computing operations and recent progress with error-correcting codes.
The researchers have produced a catalog of exact sizes and shapes of holes that form in 2-D sheets when atoms are missing from the material's crystal lattice. This new catalog could help open up various potential applications, including filtration, chemical processing, DNA sequencing and quantum computing.
Researchers at Kazan Federal University developed cryptographic algorithms for quantum networks, which can facilitate fast and secure information transfer. The algorithms, known as quantum hash functions, can protect against mistakes and be used for authentication in various areas.
Researchers at Empa and ETH Zurich have developed a novel quantum light source by arranging perovskite quantum dots into a three-dimensional superlattice. This enables the coherent collective emission of photons, creating ultrafast and bright superfluorescence.
ETH Zurich researchers have demonstrated a novel quantum error correction technique that can monitor and correct errors in real-time. The technique, which uses trapped ions to encode quantum information, has been successfully tested with repeated measurements on the same system, exceeding previous experimental limits.
Researchers developed a computer model that simulates the conditions of explosions on short time scales. The new results reveal that a delicate balance of temperature and pressure is necessary for nanodiamonds to form. This study uses atomic-level simulations to provide insights into the formation process.
Experimental physicists at the University of Illinois have created a new disorder-induced topological state, previously predicted to occur in electronic materials. The topological Anderson insulator phase was first discovered theoretically in 2009 and its origin was further explained in subsequent works.
A novel nano material with electrical and magnetic properties has been synthesized by researchers at DTU Chemistry. The material, Chromium-Chloride-Pyrazine, is an organic/inorganic hybrid with promising prospects for quantum computing, superconductors, catalysts, batteries, fuel cells, and electronics.
Qrypt has licensed a novel cybersecurity technology from Oak Ridge National Laboratory to fortify encryption methods. The company will incorporate the quantum random number generator into its platform, using unique and unpredictable encryption keys to create virtually impenetrable communications.
The team developed a multi-degree-of-freedom multiplexed solid-state quantum memory with high multimode capacity and demonstrated photon pulse operation functions with time and frequency DOFs. The device enables coherent manipulation of quantum states and can serve as a quantum mode converter with high fidelity.
Researchers at NIST create graphene quantum dot structure using magnetic fields, confirming novel pattern of concentric rings. The discovery has practical applications in quantum computing and opens possibilities for relativistic quantum simulators.
Scientists have developed a new method to shuttle lithium ions into the crystal structure of samarium nickelate, a quantum material with exotic electronic properties. This breakthrough could lead to more efficient energy storage and novel applications in computing.
A revised roadmap outlines the current status of quantum technology, examining its challenges and goals. The roadmap identifies key areas of focus, including quantum communication, computing, simulation, metrology, and control.
Researchers have developed a new artificial quantum material that can control internal resistance in multilayered magnetically doped semiconductors, enabling the creation of high-efficiency computers. The material exploits the Quantum Anomalous Hall Effect, allowing for faster computation speeds and improved energy efficiency.
Assistant Professor Madhab Neupane has discovered a new material with multiple quantum properties, which could become the foundation for quantum computers and long-lasting memory devices. The discovery is expected to increase computing power and reduce energy consumption for electronics.
Researchers at the University of Colorado Boulder and NIST have developed a device that converts microwave energy into laser light, crucial for sending quantum signals. The team's innovation could one day enable huge networks of quantum computers to communicate efficiently.
Scientists at NUS have discovered a practical way to observe and examine the quantum effects of electrons in topological insulators and heavy metals. This breakthrough enables the development of advanced quantum computing components and devices, potentially answering some of the world's toughest questions in finance and physics.
The team's device can produce one billion electrons per second and uses quantum mechanics to control them. This breakthrough paves the way for future quantum information processing applications, including defence, cybersecurity and encryption.
NIST researchers have simulated simple logic operations in a liquid medium by trapping ions in graphene, enabling potential applications in water filtration and sensor technology. The ion-trapping approach requires minimal material and can conform to custom shapes.
Researchers use ultrafast spectroscopy and terahertz pulses to uncover a new state of matter in superconducting alloys, which could enable faster, heat-free quantum computing and information storage.
Researchers at Aalto University have developed an amorphous material exhibiting topological superconductivity, which could lead to the creation of lossless components for quantum computers. This discovery brings the field closer to application and potentially makes fabrication more convenient compared to current methods.
Researchers at the University of the Basque Country and University of Hannover achieved quantum entanglement between two spatially separated Bose-Einstein condensates. This breakthrough could lead to significant improvements in fields like quantum computing, simulation, and metrology by creating large ensembles of entangled particles.
Scientists at the University of Innsbruck have successfully demonstrated fully-controlled free-space quantum interference of single photons emitted by a pair of effectively-separated entangled atoms. This breakthrough opens up new possibilities for building quantum computers and measuring physical properties with unprecedented precision.
Portland State University has been awarded a $275,000 NSF grant to explore the cryptography-breaking power of quantum computers and develop new computer science courses. The project aims to broaden participation in computer science among high school students and teachers.
Christa Fluehmann and colleagues demonstrate a way to measure position and momentum with minimal disturbance, enabling precise measurements in a limited range. This relaxation of the uncertainty principle has fundamental implications for quantum mechanics and opens up possibilities for practical applications like quantum computing.
Researchers at ORNL's Quantum Information Science Group have developed methods to control dissipative behavior in quantum systems, allowing for advancements in quantum computing and sensing. The studies aim to probe and control quantum coherent dynamics in materials at the nanoscale.
Researchers have successfully created a new quantum spin liquid, predicted by Paul W. Anderson in 1987, using a novel method developed at Aalto University. The achievement marks an important step towards understanding superconductors and building topological quantum computers with enhanced computational power.
Experts on quantum computing, including Antia Lamas-Linares, discussed the field's potential and applications at SXSW 2018. They focused on topics such as secure time synchronization and GPS protection, highlighting the importance of these areas in the future development of quantum technologies.
Machine learning techniques can reconstruct a quantum system based on relatively few experimental measurements, allowing scientists to thoroughly probe complex systems exponentially faster than conventional methods. This method benefits the development of quantum computers and other applications of quantum mechanics.
A team of researchers has developed a statistical approach to identify characteristic signatures across unmeasurable probability distributions in quantum computers. This breakthrough could help predict the behavior of photons in optical arrangements and differentiate between various particle types, bringing us closer to solving the cer...
A team at Chalmers University of Technology has successfully created a topological superconductor, which could be used to host Majorana particles and enable the development of quantum computers. The material's properties were altered by repeated cooling cycles, leading to unexpected changes in its behavior.
Scientists have manufactured a component capable of hosting Majorana particles, which could become stable building blocks of a quantum computer. The team used platinum to assemble the topological insulator with aluminium, leading to unexpected and exciting changes in the superconductivity.
A team of researchers has successfully controlled multiple quantum mechanical properties in a single material, including ferroelectricity and conductivity. The breakthrough could lead to the development of ultrafast, low-power electronics and quantum computers.
Researchers have developed a quantum linear system algorithm that enables faster analysis of large data sets, outperforming classical computers. The new algorithm has the potential to revolutionize fields like commodities pricing, social networks, and chemical structures.
Researchers developed a QKD system that achieves high secret key rates using time-bin encoding, resolving major challenges for practical applications. This breakthrough enables ultra-high rate quantum secure communication, paving the way for image and video encryption and large encrypted databases.
Researchers demonstrate fast and scalable holonomic quantum computation using Nitrogen-vacancy center electron spins in diamond, enabling high-fidelity operations with all-optical control. This work represents the first such achievement in solid-state quantum systems.
Researchers have developed a device using graphene that could provide conclusive evidence for the existence of non-Abelian anyons, a key component of topological quantum computing. The device achieves extremely low disorder and tunability, allowing for the study of these particles in a controlled environment.
Researchers at the National University of Singapore have developed a super-resolution imaging technique that doubles the odds of successful photon interaction with atoms. This innovation has significant implications for quantum computing and metrology, as it enables stronger interactions between photons and atoms.
Researchers developed a method to extract Higgs boson signal from noise data using quantum-compatible machine learning techniques, outperforming standard counterparts even with small datasets. The new approach is expected to be useful for problems beyond high-energy physics.
Researchers propose swapping atoms to demonstrate exotic properties. The process involves swapping two identical atoms without distinguishing them, leading to questions about individuality and connection in the quantum realm. This phenomenon has philosophical implications, as it challenges traditional notions of identity and connection.
Physicists at JILA have confirmed the leading results on electron roundness using a unique spinning molecule technique, measuring its symmetry to provide new insights into fundamental physics and potential fossils of ancient asymmetry. The method offers future potential for more sensitive searches and tests of natural constants.
Quantum computers threaten to destroy current internet security methods as they can break RSA and ECC systems in days or hours. Researchers like Tanja Lange are working on alternative systems, including a $3.9 million EU-funded research consortium.