Articles tagged with Qubits
Researchers at EPFL have developed a new quantum readout architecture that achieves fast and accurate qubit measurements with fewer additional components, allowing for improved performance and reduced hardware footprint. The new design uses a Josephson junction to provide built-in protection against information loss during measurement.
A new concept from Warwick researchers introduces Quantum Phononic Links, which use sound vibrations to carry quantum information between qubits across an entire semiconductor chip. This approach enables long-range qubit connectivity, paving the way for building large-scale quantum computers with millions of qubits.
Researchers at Helmholtz-Zentrum Dresden-Rossendorf demonstrate that increasing qubits in adiabatic quantum computers makes them increasingly sensitive to disturbances, leading to a 'quantum Zeno effect' that can freeze computational processes. Mitigating measures like shielding and active protection methods can help overcome this issue.
Researchers at the Institute for Basic Science have developed a new strategy for electrically controlling molecular quantum systems, enabling precise control of individual molecular spins. This breakthrough offers a practical approach to building future molecular quantum technologies.
Researchers developed a prototype device that autonomously synchronizes distant qubits using a common source of correlated light particles, confirming a 20-year-old prediction. The approach requires no active control or measurement, making it fully autonomous and potentially boosting quantum technology.
Researchers at Aalto University have demonstrated the first cyclic quantum heat engine inside a superconducting circuit, enabling technologies needed for high-qubit quantum computers. The study provides a solid proof of concept for superconducting heat engines and could reduce the cost and complexity of large-scale quantum computing.
A public-private partnership between Sandia National Laboratories and Quantinuum has achieved significant milestones in developing fault-tolerant quantum computing. The collaboration's 98-qubit commercial system, Helios, demonstrated very high fidelity in operations involving one or two qubits.
Researchers created a new quantum computing paradigm, QHDC, that works 500 times faster than existing methods. It uses hyperdimensional vectors and leverages quantum properties to efficiently encode and process complex data.
The Cleveland Discovery and Innovation Forum showcased the impact of AI and quantum computing on biomedical research, from prevention to treatment. The partnership between Cleveland Clinic and IBM's Discovery Accelerator has supported over 50 projects, contributing to multiple publications and education curriculum development.
The Barcelona Supercomputing Center has inaugurated its third quantum computer, EuroQCS-Spain, integrating classical and digital computing with analog processing. This system enhances MareNostrum 5's capabilities, supporting European research and industry in quantum technologies.
Researchers at Cal Poly have discovered a way to create exotic quantum matter by controlling the timing of magnetic fields. This breakthrough could lead to more stable and error-free quantum technologies, including quantum computing and simulation.
Scientists have found evidence of chiral superconductivity, a long-sought form of superconductivity where electron pairs twist into a signature left or right 'handedness.' Quasiparticle interference imaging revealed distinctive patterns around point defects in the tin layer.
A team at Aalto University has developed a quantum-inspired algorithm that enables the solution of colossal problems in quantum materials. This breakthrough could lead to the creation of new quantum materials for use in quantum computers and dissipationless electronics.
Researchers at Chalmers University of Technology have demonstrated that several qubits can share the same cable without significantly increasing computation time. This breakthrough technique could enable large-scale quantum computers with thousands of well-functioning qubits, revolutionizing fields like drug development and logistics.
A team of researchers at ETH Zurich has successfully realised a high-quality swap gate using only geometric phases with extremely cold potassium atoms. This breakthrough enables the robust exchange of quantum states between qubits, a crucial step towards building large-scale quantum computers.
Scientists at UC Santa Barbara have developed diamond optomechanical resonators with a high quality factor, enabling long-term storage of quantum information. The resonators utilize engineered defects to host nitrogen vacancy centers, which can sense tiny magnetic fields, offering improved precision in quantum sensing.
Researchers have developed a new measurement method to track the loss of information in qubits, resolving a major problem in quantum computing. The method enables fast and accurate measurements, allowing for real-time monitoring of information decay and identification of underlying causes.
A University of Sydney physicist has developed a new approach to quantum error correction that could significantly reduce the number of physical qubits required to build large-scale, fault-tolerant quantum computers. The study introduces gauge theory-inspired design for efficient processing and logical information storage.
Researchers at UMass Amherst have made a breakthrough in shrinking the size of quantum computers by integrating laser systems onto photonic chips. This technology has the potential to enable large-scale quantum computing and make optical clocks portable, with applications in fields such as deep space navigation and GPS.
Researchers at Virginia Tech have developed a method to reduce noise in quantum computers by using a geometric approach. By adjusting the shape of a 3D space curve, they can design pulses that suppress noise errors and improve performance. This breakthrough brings us closer to large-scale quantum computing.
Researchers create a new method that combines quantum and classical computing to solve optimization problems more efficiently, potentially achieving higher accuracy and quantum advantage. The QIAPO project aims to improve the performance of industrial processes and distribution by finding more efficient solutions.
Scientists at Linköping University successfully created quantum bits using perovskite materials, overcoming previous theoretical limitations. The breakthrough enables the creation of more affordable quantum computers with improved scalability.
The University of Cambridge has launched a major strategic partnership with IonQ to develop the UK's most powerful quantum computer, accelerating research and discovery in quantum science and technology. The partnership will support the creation of the IonQ Quantum Innovation Centre, housing a state-of-the-art 256-qubit quantum computer.
Researchers at UC Santa Barbara have identified a hydrogen-free, telecom-wavelength quantum-light emitter in silicon, called the CN center. This defect reproduces key electronic and optical properties of the T center, making it a promising alternative for practical quantum devices.
Researchers have achieved a crucial building block for new quantum computers by realizing a novel type of quantum logic gate that works with pairs of photons in four different states, enabling new opportunities for optical quantum computing. This milestone opens up possibilities for faster calculations and improved stability.
Giant superatoms combine two quantum-mechanical constructs to suppress decoherence and create entanglement, opening opportunities for scalable and reliable quantum systems. This breakthrough enables quantum information to be protected, controlled, and distributed in new ways.
Researchers at NBI developed a real-time adaptive measurement approach that tracks fluctuations in qubit energy-loss rates as they happen. This breakthrough enables faster characterization and calibration of superconducting quantum processors.
Researchers developed a new chip architecture called QARPET, which allows for the characterization of hundreds of qubits under the same operating conditions. The platform features a tiled approach to qubit measurement, making it efficient and scalable.
Scientists at Chalmers University of Technology have created a novel quantum refrigerator that utilizes problematic noise to cool down extremely low temperatures. The innovative design enables precise control over heat and energy flows, making it an essential component for scaling up quantum technology.
A team at Stanford University developed a new optical cavity architecture that enables efficient collection of single photons from single atoms, paving the way for million-qubit quantum computer networks. This breakthrough could lead to significant advances in materials design, chemical synthesis, and medical research.
Florida Atlantic University will be the first university in Florida to host a large, dedicated quantum computer on site, aiming to accelerate and solidify the state's position as a leader in quantum computing. The university will collaborate with D-Wave Quantum Inc. to advance quantum computing education, research, and applied innovation.
A new project aims to develop robust logical quantum bits for scalable and fault-tolerant quantum computing. The snaQCs2025 project combines innovative simulation and integration methods to compensate for error susceptibility of physical qubits, bringing quantum computing closer to practical use.
Columbia physicists develop new method to scale neutral-atom arrays using metasurfaces, enabling creation of 2D arrays with thousands of trapped atoms. The technology has the potential to benefit quantum computing and other neutral-atom quantum technologies.
Researchers have developed a nearly 100 times smaller device that can efficiently control lasers required for thousands of qubits, unlocking potential for larger quantum computers. The device uses microwave-frequency vibrations to manipulate laser light with extraordinary precision.
Researchers at Cleveland Clinic and IBM developed a hybrid quantum-classical model to simulate molecular interactions. The study accurately simulated two supramolecular systems, water dimer and methane dimer, for the first time using quantum computers.
A team of researchers at Tohoku University has successfully created and electrically controlled triple quantum dots in zinc oxide (ZnO), a promising material for quantum computing. This breakthrough opens a new pathway to exploring complex quantum behaviors and developing potential architectures for quantum computation.
The Princeton team designed a new qubit that lasts over 1 millisecond, three times longer than the best ever reported in a lab setting. This breakthrough enables efficient error correction and scalability for industrial systems, marking the largest single advance in coherence time in over a decade.
Kobe University's new web application combines quantum game theory with jazz improvisation to explore creativity. Users can interact in a 'quantum jam session', receiving real-time visual and auditory feedback on their strategies.
Lillian Hughes advances quantum science by creating two-dimensional ensembles of entangled spin qubits in diamond, enabling metrological quantum advantage and high-sensitivity sensing. This breakthrough brings quantum precision closer to reality with solid-state materials like diamond.
A team of researchers at NTNU's Department of Physics has developed a method to monitor and adjust the frequency of quantum bits in real-time, making them more stable and reliable. This breakthrough is essential for building functional quantum computers.
Researchers at Tohoku University propose a way to detect dark matter using highly sensitive quantum devices connected in network structures. This approach outperforms traditional methods and has potential applications beyond dark matter searches.
Researchers Tsvi Tlusty and Jean-Pierre Eckmann found a simple recipe to return rotating systems precisely to their starting point by rescaling the driving force and applying it twice. This discovery reveals that even complex rotations conceal a fundamental order, ensuring there is always a way to reset the system.
The EQUALITY project developed novel quantum approaches to representing and optimising quantum circuits with regard to hardware limitations. The consortium also achieved notable scientific advances aimed at the efficient utilisation of quantum resources.
Scientists develop novel LDPC quantum error correction codes that can handle hundreds of thousands of logical qubits and approach the theoretical hashing bound. The new codes achieve extremely high decoding performance, demonstrating a frame error rate as low as 10^-4, even for large-scale numerical simulations.
Scientists at OIST use advanced spectroscopy to track the evolution of dark excitons, overcoming the fundamental challenge of accessing these elusive particles. The findings lay the foundation for dark valleytronics as a field, with potential applications in quantum information technologies.
Researchers created the largest qubit array with 6,100 neutral-atom qubits trapped in a grid by lasers, demonstrating improved accuracy and scalability. The team successfully maintained superposition for over 13 seconds and manipulated individual qubits with high accuracy.
A team of researchers at Simon Fraser University has created a new type of silicon-based quantum device controlled by both electricity and light. The breakthrough demonstrates an electrically-injected single-photon source in silicon, clearing a major hurdle for building a scalable quantum computer. This development holds significant po...
A new hybrid software approach, sys-sage, facilitates collaboration between quantum and high-performance computing systems. The system can optimize task allocation and mapping to the best resources in each topology.
Researchers at Purdue University develop atomic-scale spectroscopy using ultrathin 2D materials, enabling improved resolution for NMR spectroscopy. The breakthrough has potential applications in quantum computing and quantum communications.
Researchers at the University of California, Riverside, have made a breakthrough in building larger and more reliable quantum computers by linking multiple quantum chips. The team found that even imperfect links between quantum chips can produce a functioning fault-tolerant quantum system.
Researchers successfully realized a stable, isolated quantum spin on an insulating magnesium oxide surface placed over a ferromagnetic iron substrate. The MgO/Fe(001) structure, widely used in spintronics, enables the formation of isolated spins due to its lack of conduction electrons.
Researchers at the University of Basel have developed a smart accelerator for qubits, increasing both speed and coherence time simultaneously. By exploiting spin-orbit coupling, they created a 'plateau' effect that reduces fluctuations and allows for faster operation without sacrificing coherence.
Researchers at Caltech have created a hybrid approach for storing quantum states by translating electrical information into sound waves. This method allows quantum states from superconducting qubits to survive in storage for an extended period.
Researchers create metasurfaces to control photons and entangle them for quantum computing and sensing. The discovery could lead to miniaturized optical setups with improved stability, robustness, and cost-effectiveness.
Recent advances in superconducting quantum computing (SQC) have made significant progress toward fault-tolerant computation and scalable architectures. Innovations in hardware development, gate-level operations, multi-qubit control, and novel qubit encodings are laying the groundwork for next-generation processors.
Researchers combined quantum computing with supercomputing to simulate large molecule stability and behavior, overcoming current barriers. The hybrid approach used a quantum computer for complex calculations and a supercomputer for error correction, enabling accurate predictions of molecule stability.
Physicists from Aalto University have measured a transmon qubit coherence time of over a millisecond, surpassing previous records and enabling more complex quantum computations. This breakthrough marks a significant step towards noiseless quantum computing.
Researchers at Chalmers University of Technology have developed a highly efficient amplifier that activates only when reading information from qubits. The amplifier consumes just one-tenth of the power consumed by the best amplifiers available today, reducing qubit decoherence and laying the foundation for more powerful quantum computers.
Researchers developed a novel quantum-centric supercomputing method to calculate electronic energy levels of complex molecules. This breakthrough enables faster and more accurate simulations, paving the way for advancements in fields like materials science, nanotechnology, and drug discovery.
Scientists at Rice University have developed a scalable method to create high-performance single-photon emitters in carbon-doped hexagonal boron nitride, paving the way for practical quantum light sources. The findings overcome long-standing challenges in the field and set a new benchmark for qubit production.