Researchers at Caltech successfully controlled the motion of individual atoms, encoding quantum information, and demonstrated hyper-entanglement in massive particles. This experiment could lead to advancements in quantum computation and precision clocks.
Researchers propose a polychromatic-pumped quantum light source to overcome exponential demand for spectrum in fully connected multi-user networks. The new approach enables significant reduction in wavelength channels required, with a 67% decrease projected for larger user counts.
A UNIGE team shows that particles can be measured jointly without physical proximity, using quantum entanglement to link separate particles. This breakthrough enables promising applications in quantum communication and computing.
Researchers at University of Rochester and RIT created an experimental quantum communications network to transmit information securely over long distances. The network uses single photons to enable secure communication without cloning or interception.
Researchers create framework to describe fundamental physics principles in both realms, providing key component for reconciling theories. The holographic principle is a crucial model to predict effects of quantum gravity, enabling theoretical physicists to make accurate predictions.
Researchers have developed deterministic benchmarking (DB), a more detailed and efficient method for identifying specific types of quantum noise and errors. DB provides accurate information about both coherent and incoherent errors, enabling better calibration of quantum gates.
Researchers achieved a type of coupling between artificial atoms and photons that could enable readout and processing of quantum information in a few nanoseconds. This breakthrough demonstrates the fundamental physics behind nonlinear light-matter coupling, a crucial step toward realizing fault-tolerant quantum computing.
A USC-led study shows that a quantum annealer outperforms classical algorithms in finding near-optimal solutions to complex problems. The researchers used a D-Wave Advantage processor and implemented error suppression techniques to overcome noise limitations.
Researchers have developed a nanophotonic platform that improves the efficiency of nonlinear-optical quantum teleportation by reducing light levels and operating with single photons. The technology transmits quantum information with 94% fidelity, outperforming theoretical limits of linear optical components.
Researchers have unveiled the secrets of deconfined quantum critical points (DQCPs), breaking away from conventional physics and offering a fresh perspective on quantum matter. The study reveals anomalous logarithmic behaviors and identifies a critical threshold value, suggesting DQCPs can resemble continuous phase transitions.
Researchers at the University of Bristol have discovered a novel way to accelerate accurate quantum measurements by trading space for time using additional qubits. This method enables faster and more confident measurements without sacrificing accuracy, with potential applications in leading quantum hardware platforms.
Researchers explore evaluation methods for sensitivity limits of quantum magnetometers, revealing intrinsic connections and relationships between quantum characteristics. The study advances theoretical development in quantum magnetometry and experimental optimization.
Quantum Base, a Lancaster University spin-out, has successfully floated on the London Stock Exchange with a £4.8 million fundraising. The company aims to harness quantum technology to address real-world challenges through its patented Q-ID solution for anti-counterfeiting.
The DGIST research team successfully fine-tuned the Rabi oscillation of polaritons by leveraging changes in electrical properties induced by crystal structure transformation. This allows for precise control over quantum particle states, enhancing the feasibility of practical quantum technology.
Engineered materials mimic quantum behaviors, allowing for the simulation of Schrödinger dynamics in classical systems. This breakthrough enables the study of quantum phenomena in more accessible environments, paving the way for novel technologies.
Scientists from University of Innsbruck successfully created hot Schrödinger cat states at temperatures up to 1.8 Kelvin, challenging the notion that high temperature destroys quantum effects. This breakthrough opens new opportunities for quantum technologies in warmer environments.
Cleveland Clinic researchers successfully tested quantum computing's ability to simulate proton affinity, a fundamental chemical process critical to life. The study used machine learning applications on quantum hardware, achieving higher accuracy than classical computing in predicting proton affinity.
A team of researchers from University of Toronto Engineering has discovered hidden multi-dimensional modulation side channels in existing quantum protocols. These side channels arise in quantum sources and can introduce vulnerabilities to secure communication, potentially compromising the security of quantum key distribution.
Researchers at USC have demonstrated the first optical filter capable of isolating and preserving quantum entanglement, a mysterious phenomenon at the heart of quantum computing. The filter uses anti-parity-time symmetry to strip away noise and reveal a pure, entangled state.
Researchers developed a method to detect and protect quantum entanglement, a fundamental aspect of quantum computing. The variational entanglement witness (VEW) algorithm optimizes entanglement detection accuracy, differentiating between separable and entangled states.
The SPINUS project has achieved significant milestones in developing solid-state qubits for quantum simulators and computers. Researchers have made progress in spin control, readout, material synthesis, and quantum algorithm development, paving the way for a scalable quantum computer with over 10 qubits.
Researchers successfully simulated a complete quantum field theory in more than one spatial dimension using a novel type of quantum computer. This approach enables efficient storage and processing of information, allowing for the observation of fundamental features of quantum electrodynamics.
The University of Osaka and research partners have launched an open-source operating system for quantum computers, enabling cloud-based operation. The OQTOPUS OS can be customized to meet individual user needs and is expected to help make practical quantum computing a reality.
Researchers at MIT created a photon-shuttling interconnect that facilitates remote entanglement, a key step toward developing practical quantum computers. The device enables all-to-all communication between multiple superconducting quantum processors, paving the way for more efficient and scalable quantum computing.
A research team has achieved orbital hybridization in graphene-based artificial atoms, a significant milestone in quantum physics and materials science. This breakthrough provides a new platform for simulating real atomic processes, with potential applications in quantum computing and nanoelectronic devices.
Scientists from South Africa and China successfully established the world's longest intercontinental ultra-secure quantum satellite link spanning 12,900 km. This achievement demonstrates South Africa's potential to develop a thriving quantum ecosystem.
Researchers found that quantum annealing processors achieve computational advantage in simulating complex problems involving quantum spin dynamics and the transverse-field Ising model. The results demonstrate severe limitations of classical simulation methods, which require impractically large computational resources and time.
Researchers at Osaka Metropolitan University developed new formulas to calculate key quantum informative quantities, including entanglement entropy and mutual information. These simplified expressions offer fresh perspectives into quantum behaviors in materials with different physical characteristics.
Researchers from Würzburg have demonstrated quantum tornadoes in momentum space using ARPES. This discovery could pave the way for new quantum technologies, such as orbitronics, which rely on electrons' orbital torque to transmit information.
Researchers from the University of Warsaw have shown that Navier-Stokes equations can be generalized to quantum systems, specifically quantum liquids with restricted particle motion. This discovery opens up new possibilities for research into transport in one-dimensional quantum systems.
The Regional Government of Madrid invests 16 million euros in quantum communications research projects, including the MadQuantum-CM initiative. IMDEA Networks and 5TONIC develop next-gen quantum communication protocols and secure key distribution solutions, while Telefónica deploys the MadQCI fibre network.
Researchers at AWS and Caltech developed a new cat qubit chip, called Ocelot, to suppress errors in quantum computers. The chip uses superconducting circuits to create stable qubits resistant to bit-flip errors.
The joint research aims to connect multiple quantum devices in practical environments, enhancing processing capabilities and enabling flexible operation. The collaboration will focus on intra-site connections and connections between neighboring cities to develop scalable quantum information processing technologies.
Engineers at Caltech have successfully demonstrated the operation of a quantum network with two nodes and multiple qubits. The researchers developed a new protocol for distributing quantum information in parallel, creating multiple channels for sending data, which significantly boosts quantum communication rates between nodes.
Researchers at Microsoft Quantum Lab West Lafayette advanced complex layered materials for topological quantum computing. The team accurately measured the state of quasi particles, a crucial step towards realizing a topological quantum computer.
Researchers at Johannes Gutenberg University Mainz are working on a subproject to investigate theoretical modeling and experimental realization of concepts for quantum repeaters. They aim to reduce transmission losses and generate high-quality quantum states to build secure quantum networks.
Researchers have developed a novel method for entanglement-based quantum key distribution that uses different light frequencies to encode quantum states, increasing security and resource efficiency. The method reduces costs and complexity, enabling the scaling up of quantum networks.
Physicists have built a new type of digital-analogue quantum simulator that can study physical processes with unprecedented precision and flexibility. The simulator combines both digital and analogue operating modes, enabling it to be applied to various problems in solid-state physics, astrophysics, and more.
Researchers successfully linked two separate quantum processors to form a single, fully connected quantum computer using photonic network interface. This breakthrough enables computations to be distributed across the network, addressing quantum's scalability problem and paving the way for industry-disrupting quantum computers.
Researchers have created a new type of optically connected qubits, a critical advance in developing quantum networks. By storing information in a collective state of nuclear spins, they achieved high fidelity and coherence times, paving the way for practical applications.
A new experimental system designed by a team from the University of Barcelona allows students to study phenomena unique to quantum mechanics, such as Bell inequalities and entangled systems. The system enables direct measurements of quantum entanglement, facilitating a deeper understanding of this unintuitive phenomenon.
Researchers at the University of Innsbruck have developed a method to switch between two error correction codes in an error-tolerant manner, making it easier to implement all required gates for computing. This breakthrough enables the quantum computer to efficiently suppress errors and improve calculation accuracy.
Researchers develop 'entanglement microscopy' to map quantum entanglement in small regions of quantum systems, revealing intricate interactions and structures. The study reveals short-range entanglement at critical points and more gradual decline in entanglement with increasing separation.
Researchers are building a quantum computer that can connect to other quantum computers via a network for secure information transfer. The team will use atoms as qubits in an experiment involving optical tweezers and highly efficient detectors.
The US Department of Energy is investing $71 million in 25 projects combining theory and experiment to explore the universe. Researchers will develop innovative solutions using quantum information science to advance our understanding of fundamental physics, including theories of gravity and spacetime.
Researchers discovered a quantum advantage of colloidal quantum dots in spin chemistry of radical pairs. The hybrid radical pairs exhibit large Δg values, allowing for direct observation of spin quantum beats and magnetic field control. This study has the potential to enable novel quantum information technologies.
Researchers at Chalmers University of Technology and University of Maryland have engineered a new type of refrigerator that can autonomously cool superconducting qubits to record-low temperatures. This breakthrough paves the way for more reliable and error-free quantum computations.
Physicists at Brown University have observed a novel class of quantum particles called fractional excitons, which behave in unexpected ways. The discovery unlocks a range of novel quantum phases of matter, presenting a new frontier for future research.
The new startup, AQSolotl, has developed a quantum controller that enables users to control quantum computers easily using laptops and desktops. The technology, developed by NTU and NUS researchers, is designed to be scalable, adaptable, and cost-efficient.
Researchers demonstrate how grape pairs can create strong localized magnetic field hotspots of microwaves used in quantum sensing applications. The study could help develop more compact and cost-effective quantum devices.
Scientists uncover hidden quantum behaviors within classical light, revealing two contrasting behaviors: classical and quantum coherence. This discovery could lead to more robust quantum technologies, mitigating decoherence and accessing quantum properties.
Quantum walks utilize quantum phenomena to design algorithms for applications such as database search, network analysis, and navigation. These models offer unique features and computational advantages, including faster diffusion and improved sampling efficiency.
Scientists successfully prepared six mechanical oscillators in a collective state, observing phenomena that emerge when oscillators act as a group. The research demonstrates experimental confirmation of theories about collective quantum behavior, opening new possibilities for quantum sensing and generation of multi-partite entanglement.
A brotherly research duo has discovered a property known as magic when the LHC produces top quarks, which has implications for quantum computing and the development of quantum computers. The study explores how difficult it is for non-quantum computers to calculate quantum systems, with higher magic levels requiring more quantum computers.
Researchers developed Concurrent Dynamic Quantum Logic (CDQL) to verify quantum protocols with concurrent actions, enhancing expressiveness and speeding up verification. CDQL provides a rigorous framework for verifying both sequential and concurrent models of quantum protocols.
A new multi-target quantum compilation algorithm developed by Tohoku University's Dr. Le Bin Ho improves the flexibility and performance of quantum computers. This allows for efficient handling of complex systems and tasks involving multiple variables in quantum machine learning.
Dr Florian Kaiser leads €3 million ERC Consolidator Grant-funded research on quantum integration, aiming to create practical applications and overcome scalability challenges in quantum technologies. The goal is to integrate quantum processors and memories on a single chip, enabling superior performance and minimal energy consumption.
Researchers used a superconducting quantum processor to study quantum transport in unprecedented detail. The experiments explored how a spin/particle current flows between two groups of qubits, revealing a unified picture of thermalisation dynamics and nonequilibrium steady dynamics.
The Karlsruhe Institute of Technology is joining the Quantum Science and Technology Centre (IQST) to strengthen research in quantum science and technology in Baden-Württemberg. The centre focuses on innovative applications of quantum science, including sensor technology and secure communication channels.
Researchers at Universität Leipzig focus on two-state systems, known as qubits, to improve conceptual understanding in learners. The study shows that teaching concepts based on two-state systems are more conducive to learning than traditional approaches.