A network of quantum computers employing optical clocks probes gravitational effects on quantum states shared between them. Researchers found that elevations as low as 1 kilometer can cause significant deviations from standard quantum theory.
Researchers show that quantum networks can probe the interplay between quantum theory and gravity, opening the door to test if quantum mechanics changes in curved spacetime. Quantum effects are distributed across network nodes using entangled W-states, enabling a test of quantum theory on curved spacetime.
Researchers have successfully developed a method to probe how quantum theory and curved space-time intertwine, using quantum networks of clocks. This breakthrough allows for the first test of this kind, exploring unique effects such as time dilation near planets.
Researchers from Boston University and Northwestern University develop a system that integrates quantum light sources and control electronics on a single piece of silicon, creating reliable streams of correlated photon pairs. The advance enables mass-producible 'quantum light factory' chips and large-scale quantum systems.
Researchers create a distributed atomic processor clock quantum network to study the interplay between quantum theory and curved space-time, exploring how gravity affects quantum mechanics. The team demonstrates that superpositions of atomic clocks can pick up different time-flows in superposition.
Researchers at Kyoto University have characterized quantum advantage by proving an equivalence between its existence and the security of certain cryptographic primitives. This breakthrough implies that when quantum advantage does not exist, many conventional cryptographic primitives are broken, including post-quantum ones.
A team at Nanjing University has successfully demonstrated quantum teleportation from telecommunication-wavelength light to a solid-state quantum memory, exceeding theoretical limits for classical systems. The experiment uses components compatible with existing fibre networks, opening the door to large-scale quantum networks.
Researchers unveiled an analogous law for the quantum world, proving that entanglement can be reversibly manipulated. An entanglement battery enables efficient manipulation of entanglement and other quantum phenomena.
Researchers have developed a world-first method to simulate specific types of error-corrected quantum computations, a significant leap forward in the quest for robust quantum technologies. The new algorithm tackles a long-standing challenge in quantum research and enables accurate simulation using conventional computers.
A new protocol has been developed to enhance quantum metrology by leveraging quantum resonance dynamics in periodically driven spin systems. This approach eliminates the need for highly entangled states and achieves Heisenberg-limited measurement precision. The protocol starts with a robust and easily prepared SU(2) spin coherent state...
A national pilot program led by UTA faculty is helping take the mystery out of quantum physics for students and educators. The program, Quantum for All, provides hands-on curriculum and classroom strategies to equip high school science teachers with the tools they need to teach quantum science.
A team of researchers from the University of Sydney has developed a silicon chip that can control spin qubits at milli-kelvin temperatures, paving the way for scaling up quantum transistors from under 100 to millions. This breakthrough technology has the potential to make practical quantum computers a reality.
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.
The Quantum Technician Bootcamp at Central New Mexico Community College is a 400-hour course that provides students with hands-on skills necessary for job placement in the quantum industry. The program, led by Sandia National Laboratories and CNM, aims to address the shortage of trained workers in the field.
Researchers from The University of Osaka develop a method to prepare high-fidelity 'magic states' for use in quantum computers with less overhead and unprecedented accuracy. This breakthrough aims to overcome the significant obstacle of noise in quantum systems, which can ruin computer setups.
A new study by USC researchers demonstrates an unconditional exponential quantum scaling advantage on IBM quantum processors, solving Simon's problem with a significant performance gap over classical computers. The team achieved this through optimal circuit design and error correction techniques.
The book, co-authored by 29 contributors from over ten countries, offers an introduction to machine learning and deep neural networks for complex quantum problems. It serves as a timely guide for PhD students and researchers looking to apply modern machine learning methods to quantum physics and chemistry.
Fraunhofer Institute for Applied Solid State Physics launches first room-temperature quantum accelerator, enabling energy-efficient hybrid quantum-classical computing. The QB-QDK2.0 system uses synthetic diamond substrates and NV centers to create stable qubits for industrial applications.
A recent study by researchers at the University of Vienna demonstrates that small-scale quantum computers can significantly boost the performance of machine learning algorithms. The experiment showed that photonic quantum processors can classify data points with fewer errors than classical algorithms.
Researchers have developed a new type of exotic quantum material that can maintain its quantum properties when exposed to external disturbances, paving the way for robust quantum computers. The breakthrough uses magnetism to create stability, making it an important step towards realising practical topological quantum computing.
Researchers successfully simulated fundamental interactions using Google's quantum processor, demonstrating the potential of quantum computing in particle physics and quantum materials. The study provides new insights into gauge theories and the behavior of particles, with implications for understanding space and time.
A new technique has been developed to identify materials needed for large-scale, fault-tolerant quantum computing. The technique uses a scanning tunneling microscope to detect the topological surface state in intrinsic topological superconductors, enabling the identification of promising platforms for topological quantum computing.
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.
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 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.
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 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 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.
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.
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.
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 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 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.
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.
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.