Articles tagged with Quantum Algorithms
Scientists at KIT successfully implemented Grover's quantum algorithm using a molecular magnet to quickly find specific elements in unsorted data. The technology quadratically accelerates search and can be integrated into current electronic devices.
Two ORNL-led research teams will assess the feasibility of quantum architectures in addressing big science problems and develop algorithms to harness massive power predicted by quantum computing systems. Researchers aim to create quantum computers capable of simulating phenomena at unprecedented scales and speeds.
Researchers found that super-powerful quantum computers must be even more powerful than previously thought to outperform ordinary PCs. The team simulated boson sampling for 20-50 photons on laptops and servers, pushing the boundary of what is possible.
Researchers found that certain physical phenomena, such as the thermal Hall conductance, cannot be simulated efficiently due to a negative sign or complex quantities involved in quantum Monte-Carlo methods. This limits the scalability of large-scale quantum simulations and provides reassurance for theoretical physicists.
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.
Researchers at Oak Ridge National Laboratory have developed a method to produce controlled, deterministic photons that can be used in novel cryptographic technologies. This innovation aims to improve the speed and security of quantum key encryption when sharing information over machine-to-machine networks.
The journal has achieved a high impact factor of 9.111, demonstrating its influence on the scientific community. UNSW is proud to be a leader in the global sharing of knowledge in this rapidly evolving field.
Researchers from Tsinghua University and Southern University of Science and Technology successfully experimentally studied the Forrelation problem in a 3-qubit nuclear magnetic resonance quantum information processor. The study aimed to find the largest possible separation between quantum and classical query complexities, with potentia...
Scientists have created stable qubits using supramolecular chemistry, enabling the connection of individual qubits into structures called two-qubit gates. This approach has potential for creating multi-qubit gates and advancing quantum computing.
Researchers used a novel quantum Monte Carlo technique to study the Rabi model's accuracy at the quantum scale. They found dramatic consequences for strongly coupled light-atom systems, emphasizing the need to account for non-conserved excitations.
The new module combines proven techniques with advances in hardware and software to run arbitrary algorithms on five qubits. It enables the flexibility to test the module on a variety of problems, bringing practical quantum computing closer to reality.
Scientists at the University of Bristol have developed a new method to simulate a 'quantum walk' on a primitive quantum computer, which they claim can solve problems that classical computers cannot. The study suggests that these smaller quantum processors could outperform classical computing for specific tasks, such as 'Boson Sampling'.
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.
A recent study by Jacob Sherson and his team at Aarhus University found that humans excel in approaching problems heuristically and solving them intuitively, a skill computers struggle with. The research used an online game called Quantum Moves to analyze player solutions and identified common features in human intuition.
Researchers from MIT and University of Innsbruck have designed a scalable quantum system that can factor large numbers efficiently using 5 atoms. This breakthrough represents the first implementation of Shor's algorithm in a scalable manner, enabling potential cracking of encryption schemes for protecting sensitive data.
Researchers developed an algorithm called Melvin to design novel quantum experiments, finding unfamiliar solutions without relying on human intuition. The algorithm has led to dozens of new experimental tricks and is being built in laboratories.
Researchers have developed a new quantum approach to analyze connections in complex networks, such as brain wiring and the global internet, using topological systems. This method can exponentially speed up calculations compared to conventional computers.
The $1.6-million gift enables world-changing research in lung diseases and quantum computing through collaboration between the University of Waterloo and Technion-Israel Institute of Technology. Researchers aim to develop targeted drug delivery systems for pulmonary diseases and advance quantum information science.
Researchers have discovered a new way to run a quantum algorithm that could solve problems classically impossible, using simpler methods than previously thought. This breakthrough has increased the likelihood of demonstrating a quantum device beating a classical computer, which would be a major milestone.
Researchers used a highly accurate simulation model to test a hypothesis about the behavior of hydrogen under extreme conditions. The study found that metallization can only occur at pressures approaching 500 gigapascals, a value that is currently beyond experimental capabilities.
Researchers at the University of Bristol successfully implemented a full quantum circuit to calculate unknown eigenvalues using a quantum algorithm without prior knowledge. This achievement marks an important step towards practical quantum computing, enabling applications in quantum simulations and metrology.
A team from the University of Bristol's Centre for Quantum Photonics has developed a technique to recycle particles in a quantum computer, reducing physical resources required for factoring. This breakthrough enables more efficient calculations, paving the way for larger implementations of quantum algorithms.
Researchers have developed an algorithm that can simulate particle collisions on a quantum computer, a feat currently beyond conventional supercomputers. This breakthrough could enable quantum computers to tackle challenging problems like breaking complex codes and studying the early universe.
J. Elisenda Grigsby, a Boston College assistant professor, received a National Science Foundation (NSF) CAREER award to study the properties of 3- and 4-dimensional spaces relevant to fields like information technology and DNA research.
Researchers have realized a new way to cool synthetic materials using a quantum algorithm, removing excess energy from ultra-cold atomic gases. This breakthrough enables the manipulation of individual particles at unprecedented temperatures, revealing a mysterious world that has never been seen before.
Scientists at the University of Bristol develop a new technique to dramatically simplify controlled operations in quantum computing. This breakthrough reduces complexity in quantum circuits, enabling more sophisticated algorithms and applications in precision measurement, simulation, and beyond.
Austrian researchers have successfully implemented an algorithm for error correction in a quantum processor, enabling repetitive corrections. This achievement is a significant milestone towards developing practical quantum computers.
A field experiment on a robust hierarchical metropolitan quantum cryptography network was recently conducted in Wuhu, China. The network uses a combination of quantum key distribution and traditional networking techniques to achieve unconditional secure communication.
Researchers at USC successfully apply Viterbi algorithm to decode entangled photons in quantum communication. This enables reliable error-free message transmission in noisy quantum channels.
Researchers demonstrate counterfactual computation, inferring information about an answer even when the quantum computer doesn't run. This technique, called interaction-free measurement, uses wave-particle duality to search a region of space without entering it.
Researchers develop quantum algorithm to calculate molecular energy states with high accuracy, overcoming challenges in quantum chemistry. By using a relatively small number of qubits, they demonstrate the potential of quantum computers to solve complex problems that are currently unsolvable by classical supercomputers.
Physicists at NIST demonstrated a crucial step in using quantum computers to break today's most commonly used encryption codes. The team used three ions as qubits to represent 1s or 0s and identified repeating patterns in quantum information. This work paves the way for building large-scale quantum computers.
Physicist Richard A. Loomis is using lasers to observe and control chemical reactions in real-time, creating 'movies' of molecules forming and breaking at atomic resolution. By recording snapshots at precise times, he aims to understand reaction dynamics and potentially improve industrial production processes.
Scientists at IBM's Almaden Research Center performed the first demonstration of Shor's historic factoring algorithm, solving a simple version of the mathematical problem at the heart of many data-security systems. The team controlled a billion molecules in a test tube to become a seven-qubit quantum computer.