The research team applied filter functions and optimal quantum control theories to detect known signals from background noise in quantum bit (qubit) sensors. They obtained analytical insight into the optimal control protocol when background noise is white, similar to classical matched filtering scheme.
A Skoltech researcher has discovered a new model of quantum computation, the variational model, which enables universal computation using limited control over a quantum simulator. This breakthrough bridges the gap between traditional quantum simulators and quantum computers.
Researchers from Louisiana State University demonstrated a machine learning approach that corrects distorted quantum information in photon systems. This method outperforms traditional protocols, showcasing the potential for machine learning to enhance quantum sensing and communications technologies on the battlefield.
Researchers have made a breakthrough in developing passive quantum error correction, which could enable the creation of fault-tolerant quantum computers. The technology has the potential to revolutionize various fields, including artificial intelligence, materials science, and biochemical engineering.
Researchers at the University of Science and Technology of China and Tsinghua University successfully implement a five-qubit quantum error correcting code using superconducting qubits. They achieve high fidelity logical state preparation with an average value of 98.6%, verifying the viability of experimental realization of quantum erro...
Researchers successfully transferred entangled qubit states through a communication cable, paving the way for future quantum networks. The team achieved entanglement amplification via the cable, using superconducting qubits, and demonstrated a system that can send entangled quantum states with minimal loss of information.
Researchers at Max Planck Institute of Quantum Optics successfully interconnected two qubits over a 60-meter distance, enabling the first prototype of a distributed quantum computer. The breakthrough opens up a new development path for distributed quantum computing, potentially leading to more powerful systems.
Germany's Forschungszentrum Jülich and semiconductor manufacturer Infineon join forces to develop a semiconductor-based quantum processor using 'shuttling' of electrons. The QUASAR project aims to scale up quantum computing for industrial production.
Researchers have successfully controlled quantum jumps in atomic nuclei using X-ray light, enabling ultra-precise atomic clocks and potentially powerful nuclear batteries. The technique requires precise control of high-energy X-ray pulses to manipulate quantum dynamics.
An international team of experts has demonstrated that only quantum gravity can create a specific ingredient needed for quantum computation. The proposed experiment involves cooling billions of atoms to extremely low temperatures and applying a magnetic field, which would reveal the underlying gravity if it's quantum.
A team of researchers used a quantum computer to explore non-Hermitian quantum mechanics and demonstrated experimental results that are forbidden by regular Hermitian quantum theory. They also showed that entanglement can be altered in a way that is not possible under regular quantum physics.
Scientists at the University of Cambridge have developed a method to communicate with a cloud of 100,000 nuclear quantum bits and sense their behavior using light and an electron. This technique enables the detection of a single quantum bit in the dense cloud with high precision.
A Berkeley Lab team successfully simulated a complex aspect of particle collisions using a quantum algorithm, accounting for neglected quantum effects. The researchers' approach meshes quantum and classical computing, allowing for efficient resources and improved accuracy.
Researchers from UMass Amherst have successfully demonstrated spontaneous quantum error correction, a significant breakthrough in the development of powerful fault-tolerant quantum computers. This achievement paves the way for potential advances in fields like new materials discovery, artificial intelligence, and biochemical engineering.
Researchers at the University of Vienna demonstrated a new approach to reduce noise in quantum communication schemes by sending particles along multiple paths simultaneously. This method, which utilizes quantum superposition, offers improved noise reduction and has been experimentally confirmed.
Researchers used quantum annealing to simulate magnetic materials, matching theoretical predictions and resembling experimental data. The study provides a foundation for future materials science research and demonstrates the potential of quantum computers in tackling complex problems.
Danna Freedman, a Northwestern University professor, presents a novel approach to quantum chemistry, enabling the creation of next-generation quantum technology. Her research challenges the assumption that molecules are too complex to study effectively, paving the way for new understandings.
Researchers at Stanford University have developed a quantum Archimedes' screw that hails fragile gas atoms to higher energy states without collapsing. The discovery reveals the existence of scar states, rare trajectories in chaotic quantum systems offering protected refuge for information encoded in quantum systems.
Researchers at the University of Innsbruck have successfully entangled two quantum bits coded on a lattice, a crucial resource for quantum computers. This achievement demonstrates key technology for future fault-tolerant quantum computers using lattice surgery.
Physicists at Princeton University have observed quantum oscillation in an insulator, a phenomenon typically seen in metals. The discovery hints at the existence of neutral fermions and challenges the long-held distinction between metals and insulators.
The team from University of Science and Technology of China demonstrated the teleportation of high-dimensional states using a linear optical system, achieving extremely high-fidelity. The study's findings pave the way for rebuilding complex quantum systems remotely and constructing scalable quantum networks.
Researchers have successfully created a two-dimensional array of quantum dots, enabling single electron control and paving the way for efficient implementation of quantum error correction routines. The achievement marks an important step towards building a working quantum computer.
The Association for Computing Machinery has published the first issue of its new peer-reviewed journal, Transactions on Quantum Computing, focusing on the theory and practice of quantum computing. The journal aims to publish high-impact research papers and surveys on topics in quantum information science.
Researchers from the University of Bristol and Phasecraft have developed new strategies to solve the Fermi-Hubbard model using optimised quantum circuits with limited device size. The study suggests that current supercomputers are unable to solve instances of the model, but near-term quantum devices can.
Researchers from the University of Cambridge discovered a hidden symmetry in quantum systems that allows entangled particles to remain linked despite noise. This finding could lead to the development of ultra-powerful quantum computers by preserving quantum effects in noisy environments.
Researchers at Northwestern and UChicago develop a new method to create tailor-made qubits by chemically synthesizing molecules that encode quantum information into their magnetic states. This bottom-up approach could lead to extraordinary flexibility and control, paving the way for next-generation quantum technology.
Physicists propose an experiment to test if gravity is a quantum phenomenon, involving entangled diamonds in freefall. A conducting copper plate shields the Casimir effect, reducing noise and making the experiment less demanding.
Direct visualization of quantum dots in bilayer graphene reveals a broken rotational symmetry with three peaks instead of concentric rings. This discovery provides crucial information for developing quantum devices based on this system.
Researchers at Osaka City University have found a way to fine-tune quantum resonance in layered structures of quantum dots, leading to improved charge transport and potential applications in solar cells. The breakthrough involves controlling the distance between quantum dot layers using short ligands and polyelectrolytes.
Scientists have found a way to characterize the degree of quantumness in physical systems, which is essential for understanding quantum computing and sensing advantages. By analyzing extrema states, researchers identified a mathematical representation called Majorana constellation, which covers more of the sphere as quantumness increases.
Researchers have developed a new software method for compressing quantum circuits, reducing the size and runtime of large-scale fault-tolerant quantum computers. This compression technique achieves up to 77% reduction in volume, potentially enabling the realization of real-world quantum computers years ahead of schedule.
Scientists at University of Rochester and Cornell University have developed a nanoscale node made of magnetic and semiconducting materials that can interact with other nodes using laser light. The device uses entanglement, a phenomenon in quantum mechanics, to connect quantum nodes across a remote network.
Researchers at a new DOE center are developing cutting-edge quantum sensing devices to unravel the mysteries of quantum materials. The devices will allow scientists to probe materials with pairs of photons or electrons, paving the way for discovering new quantum materials and inventing more sensitive probes.
A joint research group has developed a way to simulate the quantum physical properties of complex solid state systems using real systems of atoms. The team's approach uses mathematical and numerical methods to investigate which quantum systems are suitable for simulations, paving the way for progress in robust quantum computing.
Researchers aim to demonstrate ideal energy transfer in quantum systems, potentially leading to more efficient engines and quantum computers. The project uses superconducting circuits to design experiments that can be carried out within realistic quantum systems.
Researchers from Tokyo University of Science design a new quantum circuit that calculates the fast Fourier transform, a key algorithm in engineering. The QFFT circuit exploits superposition of states to greatly increase computational speed and is more versatile than traditional QFT.
Researchers have made a groundbreaking discovery about the role of heat in quantum impurity studies, extending our understanding of thermodynamics. The study reveals that two distinct experimental protocols probe the same information, providing new insights into quantum correlations.
A team of physicists successfully transported light stored in a cloud of ultra-cold rubidium-87 atoms over 1.2 millimeters using an optical conveyor belt. The controlled transport process has minimal impact on the stored light's properties, enabling potential applications in quantum communication and computing.
A new algorithm called Variational Fast Forwarding (VFF) can simulate quantum systems for longer periods than current quantum computers can handle. This allows scientists to tackle complex problems that were previously unsolvable due to decoherence, which degrades quantum coherence.
Physicists at Aalto University have developed a new detector that can measure energy quanta with unprecedented resolution, overcoming limitations in current state-of-the-art detectors used in quantum computers. The graphene bolometer achieves speeds of well below a microsecond and higher theoretical accuracy than voltage measurements.
Researchers have discovered a method to prepare robust initial states in quantum information systems, minimizing unwanted transitions and preserving quantum information. This breakthrough could enable more complex operations in quantum computing.
A new machine learning-assisted method has been developed by Purdue University engineers to rapidly preselect solid-state quantum emitters for large-scale integration on chips. This approach significantly speeds up the process, reducing analysis time from minutes to seconds.
A new protocol allows for the protection and correction of fragile quantum information in case of qubit loss, addressing a crucial issue in quantum computing. This breakthrough could prove essential for future large-scale quantum computer development.
Researchers have developed techniques to detect and correct loss of qubits in real-time, protecting fragile stored quantum information. The approach combines quantum error correction with correction of qubit loss and leakage, enabling robust quantum computing.
Researchers at UArizona are working with a $115 million federal program to develop a quantum computer and sensors for discoveries about dark matter. The center aims to overcome qubit decoherence, enabling more powerful computing and sensing applications.
Researchers at Purdue University have developed a new theory that may lead to systematic design of quantum algorithms, outperforming classical computers. The theory identifies large groups of quantum states with polynomial complexity, allowing for efficient coefficient sampling procedures to determine their suitability.
The Quantum Systems Accelerator will harness quantum information science for discoveries that benefit the world and accelerate commercialization. The center will co-design solutions needed to build working quantum systems outperforming today's computers.
The team created a new routing algorithm that allows qubits to directly interact with many more qubits, giving rise to higher expected computational power. This approach outperforms the 'superconducting' devices in calculating the expected computational power.
Researchers at Yokohama National University developed a new method to produce entangled photons compatible with quantum memories, allowing for long-distance quantum communication through optical fibers. This breakthrough could enable the creation of a quantum internet linking quantum computers.
Researchers created a family of benchmark quantum circuits with known optimal depths or sizes to improve quantum compilation design. This could lead to computation speeds up to 45 times faster than currently demonstrated. The benchmarks, named QUEKO, have been made open source and are available on GitHub.
A team of UChicago scientists developed a technique that allows quantum systems to stay operational for up to 22 milliseconds, four orders of magnitude higher than before. This breakthrough has the potential to revolutionize quantum communication, computing, and sensing by enabling new research opportunities in quantum engineering.
The University of Arizona will lead a new National Science Foundation Engineering Research Center to architect the quantum internet, revolutionizing computing, communication, and sensing. The center aims to create a fabric connecting quantum computers, data centers, and gadgets using qubits.
NAU will contribute research, education, and workforce development through the CQN, focusing on quantum networks and materials. The center aims to lay foundations for a quantum internet, revolutionizing computing, communication, and sensing.
Researchers at Skoltech developed a quantum enhanced machine learning approach that uses quantum states as data, overcoming the 'data-readin problem'. This allows for faster calculations and better performance than classical machines in certain applications.
Researchers at MIT and Sandia National Laboratories have developed a hybrid approach to fabricate large-scale quantum chips using diamond-based qubits and quantum photonics. The new method enables the creation of complex quantum devices with reliable circuits for transmitting and manipulating quantum information.
Researchers have developed a new method to calculate the exact entanglement cost of a given quantum state, allowing for more precise measurement and application in various quantum research areas. This breakthrough resolves a longstanding investigation in entanglement theory, enabling efficient computation and broad applicability.
Scientists have found that quantum particles can carry unlimited information about interacted objects, enabling precise measurements. Researchers developed a new technique using quasi-probabilities to improve metrology, leading to potential breakthroughs in super-precise microscopes and quantum computers.
MIT researchers develop an on-off system that allows for low-error quantum computations and rapid sharing of quantum information between processors. The system uses 'giant atoms' made from superconducting qubits, enabling high-fidelity operations and interconnection between processors.
Researchers at UVA have developed an algorithm to classify genomic data using quantum computers, potentially revolutionizing the field of genetic research. The new technology could analyze vast amounts of genetic data exponentially faster than conventional computers.
The new Q-SEnSE center will explore grand challenges in quantum sensing, measurement science, and advancing real-world technologies. Researchers will partner with engineers to turn advancements into practical applications, educating the next generation of quantum workforce.