58 curated articles
Silicon is ubiquitous in modern electronics, and now it is becoming increasingly useful in quantum computing. In particular, silicon's compatibility with existing chip technology and its long coherenc...
Google Quantum AI has announced a major strategic expansion of its research roadmap, adding neutral atom quantum computing to its established superconducting hardware program. Led by founder Hartmut N...
Insider Brief PRESS RELEASE — With the world’s first scalable, fault-tolerant quantum computer expected to be years away, a group of New Zealand researchers has developed an exciting hybrid device tha...
Insider Brief Tuesday in Washington offered a clear picture of where quantum technology now stands, not as a future concept, but as a present responsibility. Meetings on Capitol Hill, organized by Opt...
Insider Brief Google Quantum AI, which was a pioneer in the superconducting approach to quantum computing, announced that it is expanding beyond that core approach to add neutral atom quantum computin...
We introduce the Adaptive Derivative-Assembled Pseudo-Trotter ansatz Variational Majorana Propagation Eigensolver (ADAPT-VMPE), a quantum-inspired classical algorithm that exploits Majorana Propagatio...
Motzkin spin chain is a well-known mathematical model with connections to symmetry-protected topological phases, such as the Haldane phase, as well as to concepts in the AdS/CFT correspondence. They e...
Insider Brief PRESS RELEASE — The National Reconstruction Fund Corporation (NRFC) has invested AUD$20 million in Silicon Quantum Computing (SQC), a global leader in the field of quantum computing. SQC...
We introduce the concept of quantum actuators as mediators for globally controlled quantum computation. Auxiliary quantum systems act as controllable elements that transiently store and release intera...
Insider Brief A transatlantic partnership between the U.S. and the U.K. could serve as a fulcrum in the global effort to develop quantum computing, with Quantinuum positioned as a leading example of h...
Insider Brief Quantum hardware is beginning to show measurable gains on real financial problems, with larger qubit systems delivering better portfolio outcomes in direct comparisons with classical met...
Insider Brief The term “quantum technology” has entered mainstream discourse with increasing frequency, appearing in government policy documents, corporate strategy announcements, venture capital port...
We present a complete and rigorous model of an EPR--Bell-type experiment within the framework of the de Broglie--Bohm theory. The purpose of this work is to show explicitly how a deterministic hidden-...
Insider Brief Photonic quantum computing uses photons instead of matter-based qubits, offering room-temperature operation, fiber-network compatibility, and multiple architectural approaches under acti...
We investigate the dynamical evolution of quantum discord, entanglement and purity in an open quantum system of two coupled asymmetric harmonic oscillators interacting with a thermal environment. Usin...
We introduce STAR-magic mutation, an efficient protocol for implementing logical rotation gates on early fault-tolerant quantum computers. This protocol judiciously combines two of the latest state pr...
Entangled quantum probes can achieve Heisenberg-limited measurement precision, but this advantage is typically destroyed by noise. We address this issue by introducing a framework that we call encoded...
Quantum simulation of molecular electronic structure is one of the most promising applications of quantum computing. However, achieving chemically accurate predictions for strongly correlated systems ...
Enhancement of quantum battery performance is a popular subject in quantum thermodynamics. An interesting phenomenon is the quick charging effect [Phys. Rev. Res. 6, 023136 (2024)], which has been exp...
Interference provides a fundamental mechanism for generating and manipulating entanglement in many-body quantum systems. Here, we develop an interference framework in which the nonlinear dynamics of c...
Solid-state spins in diamond are promising building blocks for quantum computing and quantum sensing, both of which require precise nanoscale addressing of individual spins. To explore the resolution ...
To get the most out of today’s noisy quantum computers, quantum computational experiments commonly utilize quantum error mitigation (QEM) techniques. These methods include discarding known noisy resul...
The arrow of time is usually attributed to two mechanisms: decoherence through environmental entanglement, and chaos through nonlinear dynamics. Here we demonstrate a third route, Precision-Induced Ir...
For strings of letters from a small alphabet, such as DNA sequences, we present a quantum encoding that empirically provides a strong correlation between the Levenshtein edit distance and the fidelity...
Quantum computers have the potential to solve certain complex problems in a much more efficient way than classical computers. Nevertheless, current quantum computer implementations are limited by high...
Quantum simulations before fault tolerance suffer from the intrinsic noise present in quantum computers. In this regime, extracting meaningful results greatly benefits from stability against that nois...
Dell Technologies has announced a suite of security-by-design and cyber resilience enhancements aimed at mitigating risks posed by the convergence of AI and quantum computing. As quantum systems threa...
Large optical coherent-state superpositions are essential to advance quantum sensing, quantum repeaters and error-correction codes. We propose a deterministic feedforward protocol employing qubit-mode...
The Post-Quantum Financial Infrastructure Framework (PQFIF), submitted to the U.S. Securities and Exchange Commission’s Crypto Assets Task Force, identifies the implementation project between QuSecure...
We demonstrate violation of objective realism in quantum world using unconstrained weak measurements. Instead of limited Leggett-Garg approach with artificial bounds on the observed values, we assume ...
Insider Brief PRESS RELEASE — Today, the Honourable David J. McGuinty, Minister of National Defence, on behalf of the Honourable Mélanie Joly, Minister of Industry and Minister responsible for Canada ...
Quantum-correlated networks distribute quantum resources such as squeezed and entangled states. These states are central to modern quantum technology, including photonic quantum computing, quantum com...
Theoretical analysis of a prototypical two-qubit effective non-Hermitian system characterized by asymmetric Heisenberg $XY$ interactions in the absence of external magnetic fields demonstrates that ma...
Quantum computers, computing systems that process information using quantum mechanical effects, could outperform classical computers on some computational tasks. These computers rely on qubits, the ba...
Satellite based quantum key distribution (QKD) aims to establish secure key exchange over long distances despite significant technological challenges. To alleviate some of these challenges, Ghalaii et...
Insider Brief Quantum entanglement — the strange correlation between particles separated in space — could soon move from physics laboratories into practical technologies that help computers, networks ...
Insider Brief PRESS RELEASE — Q*Bird, the Dutch leader in quantum secure communication, in collaboration with the Walton Institute at South East Technological University in Waterford (SETU), has deplo...
In the absence of error correction, noisy intermediate-scale quantum devices are operated by training parametrized quantum circuits (PQCs) so as to minimize a suitable loss function. Finding the optim...
Quantum machine learning models generally lack principled design guidelines, often requiring full resource-intensive training across numerous choices of encodings, quantum circuit designs and initiali...
Quantum error correction (QEC) is critical for scalable fault-tolerant quantum computing. Topological codes, such as the toric code, offer hardware-efficient architectures but their Tanner graphs cont...
Reliable quantum memory is essential for scalable quantum networks and fault-tolerant photonic quantum computing. We present a quantitative analysis of an all-optical quantum memory architecture in wh...
Insider Brief PRESS RELEASE — The travelling salesman problem may be the most well-known optimization problem. The problem challenges mathematicians to calculate the best route for a hypothetical sale...
Neutral atom arrays have seen tremendous progress in quantum simulation, quantum metrology, and fault-tolerant quantum computing. However, hardware constraints such as atom loss and heating remain sig...
The potential of quantum computing is fundamentally constrained by the inherent susceptibility of qubits to noise and crosstalk, particularly during multi-qubit gate operations. Existing strategies, s...
In continuous-variable quantum computing, autonomous quantum error correction (QEC) can dissipatively steer a noisy quantum state into a target state or manifold, enabling robust quantum information p...
Quantum Neural Networks (QNNs) are a promising class of quantum machine learning models with potential quantum advantages when implemented on scalable, error-corrected quantum computers. However, as s...
Fixed-frequency transmon qubits, characterized by simple architectures and long coherence times, are promising platforms for large-scale quantum computing. However, the rapidly increasing frequency co...
Multimode Gaussian states are a versatile resource for quantum information technologies and have been realized across a wide range of physical platforms. Recent progress in the large-scale generation ...
SEEQC has published a study in Nature Electronics documenting the operation of a full-stack quantum computing system with integrated digital superconducting logic at 10 mK. The research demonstrates a...
Guest Post By Baha Jabarin Founder & Product Designer | mimicodesignhouse.com | bahajabarin.com Hybrid quantum-classical workflows, which combine quantum and classical computing, are already being use...
Insider Brief PRESS RELEASE — SEEQC today announced a significant breakthrough in the development of scalable, chip-based quantum computers, with results published in a peer-reviewed study in Nature E...
Over the past decades, quantum scientists have introduced various technologies that operate leveraging quantum mechanical effects, including quantum sensors, computers and memory devices. Most of thes...
Insider Brief PRESS RELEASE — Alice & Bob announces accelerated quantum error correction decoding through GPU-accelerated simulation using the NVIDIA CUDA-Q platform, marking a step toward scalable fa...
Insider Brief In new research published in Physical Review X, scientists have designed quantum control protocols that generate processes more consistent with time flowing backward than forward. The pr...
This is today’s edition of The Download, our weekday newsletter that provides a daily dose of what’s going on in the world of technology. A $5 million prize awaits proof that quantum computers can sol...
I’m standing in front of a quantum computer built out of atoms and light at the UK’s National Quantum Computing Centre on the outskirts of Oxford. On a laboratory table, a complex matrix of mirrors an...
Duo bag award often described as the “Nobel Prize in Computing” The post Quantum physicists Charles Bennett and Gilles Brassard win $1m Turing Award appeared first on Physics World .
Charles Bennett and Gilles Brassard were recognized for their foundational work in quantum information science. The post Quantum Cryptography Pioneers Win Turing Award first appeared on Quanta Magazin...