An international research team has developed a groundbreaking technique to integrate superconductors with semiconductors by patterning platinum on germanium and heating it to form a superconducting alloy, demonstrating coherent quantum states that could enable hybrid quantum processors combining the scalability of semiconductor qubits with the long-range connectivity of superconducting circuits.
A QuTech research team demonstrated initialization, readout, and universal control of four qubits created from eight germanium quantum dots, achieving quantum information transfer with 75% Bell state fidelity and establishing a versatile platform for quantum computing advancement.
Microsoft has demonstrated the world’s first topological qubit using Majorana Zero Modes in specially-engineered topoconductor materials, achieving measurement-based control through quantum dot interactions while securing DARPA support to build a fault-tolerant prototype that could scale to one million qubits and revolutionize scientific discovery.
Using Quobly’s Strategy to Build Qubits With FD-SOI Technology, Readout Architecture ‘Provides a Path to Low Power and Scalable Quantum’ ICs
The research demonstrates how quantum state tomography can reveal the full quantum characteristics of photoelectrons emitted from atoms, showing pure quantum states in helium but mixed states in argon due to spin-orbit coupling, thus bridging photoelectron spectroscopy with quantum information science.
Scientists have made a transformative discovery in quantum computing that challenges long-held assumptions about spin qubit assembly. The breakthrough research demonstrates that hydrogen bonds can effectively facilitate spin interactions between qubit components.
Simulating quantum many-body systems is crucial for advancing physics but poses substantial challenges for classical computers. Quantum simulations overcome these limitations, with analog simulators offering unique advantages over digital methods, such as lower systematic errors […]
Researchers have demonstrated a S − T_ qubit whose frequency is a strong function of the voltage applied to the barrier gate shared by the quantum dots.
Scientists have introduced and analyzed a high-dimensional QKD protocol that requires only standard two-dimensional hardware. They have provided security analysis against individual and coherent attacks, establishing upper and lower bounds on the secure key rates.
Scientists have introduced a new EACC scheme capable of correcting a fixed number of erasures/errors. It can be adjusted to the available amount of entanglement and sends classical information over a quantum channel.
A team of physicists at The City College of New York has demonstrated that introducing hydrogen ions (H⁺) into magnetic Weyl semimetal MnSb2Te4 can effectively tune its electronic properties and enhance electron chirality transport, leading to a tunable ‘chiral switch’ that doubles the Curie temperature and shows strong angular transport chirality, offering significant potential for quantum computing and nano-spintronics applications.
Northwestern University researchers discovered that quantum networks can be maintained by adding just the square root number of new connections relative to total users after each communication event, offering a surprisingly efficient solution to the challenge of quantum links disappearing once used.
A research team has developed a groundbreaking, compact frequency comb generator using lithium tantalate technology that achieves 450 nm spectral coverage with over 2000 comb lines while reducing power requirements twentyfold, potentially transforming applications from robotics to environmental monitoring.
Tokyo Metropolitan University researchers discovered that polycrystalline iron-nickel-zirconium alloys exhibit unconventional superconductivity through a dome-shaped phase diagram, representing a significant advance in developing practical high-temperature superconductors despite neither pure iron zirconide nor nickel zirconide showing such properties individually.
Researchers have developed a groundbreaking method enabling quantum computers to switch between different error correction codes during computation, overcoming a fundamental limitation in quantum computing where no single code can efficiently perform all necessary operations while maintaining error protection.
A groundbreaking discovery in quantum physics introduces the anomalous Hall torque – completing a triad of Universal Hall torques – which enables precise control of electron spin and magnetization in spintronic devices, paving the way for more efficient neuromorphic computing systems that mimic human brain functions.
Researchers have developed a programmable photonic latch that enables faster optical data storage and processing by utilizing silicon photonics and wavelength division multiplexing, potentially revolutionizing AI applications and optical computing systems while overcoming traditional electronic memory limitations.
Researchers have studied an open quantum system simulation on quantum hardware, which demonstrates robustness to hardware errors even with deep circuits containing up to two thousand entangling gates.
In this paper, parallel plate capacitors composed of aluminum-contacted, crystalline silicon fins are shown to be a promising technology for use in superconducting circuits by evaluating the performance of lumped element resonators and transmon qubits.
Researchers have developed a simulation algorithm for distillation circuits with per-gate complexity of O(1) , drastically faster than O(N) Clifford simulators or O(2N) wavefunction simulators over N qubits.
MIT researchers achieved a groundbreaking 99.998% single-qubit fidelity in quantum computing through innovative fluxonium qubit control techniques, combining commensurate pulses and synthetic circularly polarized light to overcome counter-rotating errors, marking a crucial advancement toward practical quantum error correction and fault-tolerant quantum computing.
This work represents the embodiment of the long-sought goal of bridging macroscopic and microscopic nonlinear and quantum optics,” says Schuck, who co-directs Columbia’s MS in Quantum Science and Technology. “It provides the foundation for scalable, highly efficient on-chip integrable devices such as tunable microscopic entangled-photon-pair generators.
Qolab, Inc., a pioneering company in superconducting quantum computing, has successfully raised over $16 million in Series A financing.
Quantum entanglement is a remarkable phenomenon where two particles become interconnected, so that the state of one instantly affects the other, no matter how far apart they are. This unique property is a cornerstone of quantum computing and a range of advanced technological applications. While entanglement has been achieved with atoms, achieving it with complex molecules is a significant step forward because molecules offer additional structures and properties, such as vibration and rotation, that can be leveraged in advanced quantum applications.
In a groundbreaking development published in Nature Communications, an international research team has created the first electrically pumped continuous-wave semiconductor laser compatible with silicon integration. The device, constructed from group IV elements using stacked layers of silicon-germanium-tin and germanium-tin, operates with minimal power requirements comparable to an LED.
Researchers have analyzed a universal method to obtain fast charging of a quantum battery by a driven charger system using controlled, pure dephasing of the charger. While the battery displays coherent underdamped oscillations of energy […]
SandboxAQ has announced a significant funding round of over $300 million from prominent investors including Fred Alger Management, T. Rowe Price Associates, Mumtalakat, and notable individuals like Eric Schmidt, Marc Benioff and Yann LeCun. The […]
IonQ, a leading quantum computing company, has announced a major partnership with the University of Maryland and the State of Maryland to establish the region as the “Capital of Quantum.” This landmark initiative aims to […]
Researchers at the University of Pennsylvania’s School of Engineering and Applied Science have developed a revolutionary photonic switch that transforms data transmission in fiber-optic networks. The switch, detailed in Nature Photonics, measures just 85 by […]
Scientists at NIST and Chalmers University of Technology have developed a groundbreaking quantum refrigeration system that achieves record-low temperatures for quantum computing operations. This innovative approach addresses one of quantum computing’s fundamental challenges: maintaining qubits […]