Articles tagged with Quantum Computing
A German-Chinese research team has successfully created a quantum bit in a semiconductor nanostructure by exciting a superposition state with two short-wavelength optical laser pulses. This achievement demonstrates coherent control of a high-orbital hole in a semiconductor quantum dot.
A hybrid quantum-classical machine-learning model was used to generate novel chemical structures for potential drugs, suggesting unique compounds with biologically active properties. The system successfully proposed 2,331 novel molecules with high novelty, paving the way for a dramatic acceleration of drug discovery.
A joint research team has developed a novel approach combining machine learning with quantum-classical computational molecular design to accelerate the discovery of efficient OLED emitters. The optimal OLED emitter discovered is a deuterated derivative of Alq₃, which is both extremely efficient at emitting light and synthesizable.
Researchers at Cornell University have discovered and visualized a crystalline yet superconducting state in Uranium Ditelluride (UTe2), a previously unknown state of topological quantum matter. This 'spin-triplet electron-pair crystal' exhibits a new form of electronic quantum matter called Cooper-pair density waves.
Songtao Chen, an assistant professor at Rice University, has won a prestigious NSF CAREER Award to study the interaction between photons and T center qubits. The research aims to address signal-loss during transmission, which is crucial for large-scale implementation of quantum communication.
A new technique allows for the precise growth and placement of halide perovskite nanocrystals, enabling the creation of functional nanoscale devices such as nanoLEDs. This breakthrough could lead to applications in optical communication, computing, and display technology.
Researchers at EPFL have found a way to teach quantum computers to learn and process information using principles inspired by quantum mechanics. By training quantum neural networks (QNNs) on a few simple examples called 'product states', the computer can effectively grasp complex dynamics of entangled quantum systems.
Researchers from the University of Rochester have made an important step toward developing computers advanced enough to simulate complex natural phenomena at the quantum level. They developed a new chip-scale optical quantum simulation system that could help make such a system feasible, using photonics-based synthetic dimensions.
A team at the University of Washington has made a breakthrough in quantum computing by detecting signatures of 'fractional quantum anomalous Hall' (FQAH) states in semiconductor materials. This discovery marks a significant step towards building stable qubits and potentially developing fault-tolerant quantum computers.
Researchers at Oak Ridge National Laboratory have developed a novel method to transform normal insulators into magnetic topological insulators using electric fields. This breakthrough could lead to high-speed, low-power electronics with reduced energy consumption.
Researchers at Chalmers University of Technology have developed open-source software, SuperConga, to explore new superconducting properties and advance quantum computing. The program operates at the mesoscopic level, enabling simulations that can 'pick up' the strange properties of quantum particles.
Researchers have successfully isolated individual color centers in hexagonal boron nitride (hBN) and achieved coherent control of an ultrabright single spin with high probability. This breakthrough enables optically controlled spins, opening up new possibilities for quantum information processing.
An international team of scientists has successfully measured the electron spin in matter for the first time using kagome materials. The results could revolutionize the study of quantum materials, with potential applications in renewable energy, biomedicine, electronics, and quantum computing.
Researchers have developed a novel encoding scheme called critical Schrödinger cat code, which could revolutionize the reliability of quantum computers. This technique uses a hybrid regime to operate close to the critical point of a phase transition, resulting in enhanced error suppression capabilities.
The team used an acoustic beamsplitter to demonstrate the quantum properties of phonons, showing they can be split and create interference between two phonons. This breakthrough is a crucial step toward creating a linear mechanical quantum computer using phonons instead of photons.
Researchers from Radboud University have developed a quantum simulator to create artificial molecules resembling real organic ones. This allows for the simulation of complex chemical reactions and properties, paving the way for new materials and technologies.
A University of Minnesota team developed a new superconducting diode that is more energy efficient and versatile than past models. The device can process multiple electrical signals at once and has gates to control the flow of energy, which could enable faster quantum computers for industry use and enhance AI performance.
Researchers have developed an innovative approach to efficiently manipulate topological edge states for optical channel switching. By exploiting the finite-size effect in a two-unit-cell optical lattice, they achieved dynamic control over topological modes and demonstrated robust device performance.
Researchers at USC Viterbi School of Engineering achieved a quantum speedup advantage in a bitstring guessing game, managing strings up to 26 bits long by suppressing errors. The study demonstrates that with proper error control, quantum computers can execute complete algorithms with better scaling, even in the NISQ era.
The US Army has awarded over $5.7 million to two quantum computing projects at the University of Pittsburgh, led by Associate Professor Michael Hatridge. The grants aim to overcome roadblocks in modular quantum computing and develop new hardware approaches for superconducting quantum computers.
Researchers at the University of Basel have questioned Microsoft's claims of detecting Majorana particles, suggesting alternative explanations for the anomaly and superconducting properties detected in experiments. The team's calculations show that disorder in the nanowire could be responsible for the observed effects.
A new technique developed by researchers at the University of Warsaw's Faculty of Physics allows for up to a 200-fold change in pulse duration with an efficiency of 25 percent. This enables quantum Internet links to operate up to 50 times faster, contributing to the development of superfast quantum connections.
Researchers have made a quantum matter breakthrough by tuning density waves in a unitary Fermi gas, creating a new type of matter with extreme interactions. This discovery could lead to a better understanding of complex materials and potentially improve the development of quantum-based technologies.
Researchers at the University of Innsbruck have created a fully functioning quantum repeater node, enabling entanglement creation and swapping over 50 kilometers. This breakthrough demonstrates the feasibility of connecting distant cities through secure, high-performance quantum communication networks.
Entangling low-energy microwave with high-energy optical photons is a crucial step to overcome challenges in scaling up existing quantum hardware. The achievement has implications for realizing interconnects to other quantum computing platforms and novel quantum-enhanced remote sensing applications.
Researchers at Google Quantum AI have successfully observed non-Abelian anyons, a type of particle predicted to break certain rules in physics. This breakthrough enables the creation of topological quantum computers, which can perform robust operations despite noise and errors.
Engineers at the University of New South Wales have created a solution for overcrowded circuitry in quantum computer chips by developing jellybean quantum dots in silicon. The device allows for spaced-out qubits that can interact with each other, enabling more efficient quantum computing.
Researchers at the University of Innsbruck have developed reversible parity gates for integer factorization using quantum computers. This breakthrough enables the solution of a crucial pillar of cryptography, allowing for faster and more efficient factorization.
Researchers demonstrate probabilistic computing's capabilities by simulating networks of stochastic nanodevices to solve specific NP problems. The simulations agree with theoretical solutions, indicating the potential for scaling up this approach.
Researchers have developed a new germanium-tin transistor that exhibits improved electronic properties compared to silicon-based transistors. The material combines the benefits of germanium and tin, resulting in enhanced performance at low temperatures.
Researchers reconstructed the full state of a quantum liquid using ultracold atoms, offering insights into quantum systems' fluctuations and behavior. This breakthrough has promise for quantum computing, sensing technology, and better characterization of quantum systems.
The researchers developed a method to create ultracompact photonic crystal cavities that can generate entangled photons. The discovery is crucial for the development of quantum computing and sensing applications. By controlling the cavity's properties, they can efficiently convert pump power into coherent light.
The team successfully entangled two qudits with unprecedented performance, enabling faster and more robust quantum computing. This breakthrough could lead to significant advancements in fields like chemistry and physics.
Researchers investigated Hardy nonlocality using quantum computers, discovering increased success probability as the number of particles grows. This challenges classical theories and has implications for quantum mechanics and communications.
Researchers identify potential application of quantum compression in edge computing, which could save storage space and network bandwidth. Quantum compression, a new concept, is being explored as an enabling tool for edge applications, with classical techniques compared to quantum approaches.
Researchers have derived a formula predicting the effects of environmental noise on quantum computing. By incorporating redundancy in quantum messages, scientists can now quantify how much redundancy is needed to protect against dephasing noise.
Researchers at TU Wien develop a quantum version of the third law of thermodynamics, finding that absolute zero is theoretically attainable but requires infinite energy, time, or complexity. This breakthrough reconciles quantum physics with thermodynamics, paving the way for the development of practical quantum computers.
A team of researchers has created a mixed magnon state in an organic hybrid perovskite material by harnessing the Dzyaloshinskii–Moriya-Interaction. This allows for magnon-magnon coupling, which is crucial for processing and storing quantum computing information. The work expands the number of potential materials for creating hybrid ma...
The new architecture reduces physical qubits required for error correction to 10% of conventional architectures, enabling better performance than classical computers. This breakthrough accelerates progress toward practical quantum computing, with the aim of applying quantum computing applications to various societal issues.
Researchers at the University of Sydney and the University of Basel have demonstrated the ability to manipulate and identify small numbers of interacting photons with high correlation. This achievement represents a significant step towards advancing medical imaging and quantum computing technologies.
Researchers have developed a new concept for superconducting microwave low-noise amplifiers with significantly lower power consumption. The SIS amplifier has been successfully demonstrated with high-performance gain below 5 GHz and comparable noise temperature to cooled semiconductor amplifiers, with potential applications in radio ast...
Scientists at EPFL and IBM have developed a new type of laser using lithium niobate, enabling precise distance measurements in LiDAR applications. The hybrid integrated tunable laser offers low frequency noise and fast wavelength tuning.
Researchers developed an algorithm using quantum computing to study amine reactions and find new compounds for carbon capture. The algorithm can quickly screen thousands of molecules and structures, vital for practical applications in fields like carbon capture.
Scientists have made a groundbreaking discovery in quantum computing, enabling the creation of an experimental wormhole. The 'counterportation' approach harnesses basic laws of physics to transport small objects across space without particles crossing.
A new device developed by quantum engineers can measure the spins in materials with high precision, breaking the current record of thousands of spins. This breakthrough enables researchers to study systems that were previously inaccessible, such as microscopic samples and two-dimensional materials.
Researchers in Japan used a synchrotron to create gamma rays that revealed unusual fluctuations in the electrical charge of a strange metal alloy. The study provides insight into the inner machinery of these materials, which could inspire new forms of electronic matter and high-temperature superconductivity.
Researchers developed a technique to predict how quantum systems behave when connected to their environment, turning a problem into a solution. The approach combines techniques from quantum many-body physics and non-Hermitian quantum physics, providing a crucial tool for real-world applications of quantum technology.
HRL Laboratories has demonstrated universal control of encoded spin qubits using a novel silicon-based qubit device architecture. The achievement offers a strong pathway toward scalable fault tolerance and computational advantage in quantum computing, with potential applications in materials development, drug discovery, and mitigating ...
A new mathematical theory developed by scientists at Rice University and Oxford University can predict the nature of motions in complex quantum systems. The theory applies to any sufficiently complex quantum system and may give insights into building better quantum computers, designing solar cells, or improving battery performance.
Researchers from Iowa State University and Tufts University are using quantum computing to simulate and study atomic nuclei. They aim to understand the fundamental laws of nature governing nuclear formation in the Big Bang and supernovae.
Researchers developed a wireless communication system that enables quantum computers to send and receive data using high-speed terahertz waves, reducing power consumption and error-causing heat. The system uses a transceiver chip and tiny mirrors to transmit data wirelessly, making it suitable for large-scale quantum systems.
The Heidelberg Laureate Forum Foundation offers journalist travel grants to cover the 10th HLF from September 24-29, 2023. Recipients of prestigious awards in mathematics and computer science will gather with young researchers for a week of interdisciplinary dialogue.
The Purdue University team has proposed a quantum device that can theoretically model and test emergent particles, including the Fibonacci anyon. This discovery could lead to more efficient quantum computing technology by resisting decoherence.
Researchers at Oak Ridge National Laboratory have discovered that hydrogen atoms play a crucial role in twisting iron, enabling more efficient chemical reactions. Additionally, the lab has developed technology to reuse old electric vehicle batteries as energy storage systems for the grid, reducing pollution and carbon emissions.
Researchers and industry leaders from around the world will gather in Sydney to discuss key areas of quantum computing, communications, sensing, training, entrepreneurship, and policy. The three-day event is expected to feature insights on cyber security, sustainability, and commercialization, with over 700 attendees.
Researchers have developed a method to perform arbitrary connectivity optimization using Rydberg atom arrays, expanding the class of problems solvable by neutral-atom machines. This breakthrough enables applications in logistics scheduling, pharmaceuticals, and other fields.
Scientists have detailed the atomic structure of superconducting RbV3Sb5 at 103 degrees Kelvin, revealing a unique lattice pattern and charge-density wave. This breakthrough provides a new understanding of exotic states of matter and brings researchers closer to developing higher-temperature superconductors.
Researchers have developed a new device that can effectively redistribute noise and reduce its impact on quantum measurements. By 'squeezing' the noise, they can make more accurate measurements, enabling faster and more precise quantum systems. The device has the potential to improve multi-qubit systems and metrological applications.
Scientists at Stanford University and SLAC National Accelerator Laboratory have made progress toward building a novel quantum simulator. The device can simulate interactions between two quantum objects, paving the way to study complex systems and answer fundamental questions in physics.
Researchers at MIT have discovered a way to switch graphene's superconductivity on and off with short electric pulses, opening up new possibilities for ultrafast brain-inspired electronics. This discovery could lead to energy-efficient superconducting transistors for neuromorphic devices.