Articles tagged with Quantum Information Processing
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.
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.
Researchers at RIKEN Center for Emergent Matter Science have created a new superconducting thin film from iron telluride, suitable for quantum computing applications. The film's unique crystal structure, resulting from intentional misalignment of atomic layers, reduces lattice distortion and enables low-temperature superconductivity.
Quantum technologies have accelerated out of the lab and into the real world, with six leading platforms compared for technology-readiness. The field stands at a turning point, similar to the early computing age, where foundational physics concepts are established but system-level demonstrations must be substantially improved and scaled.
A team of researchers from Paderborn University and the Sapienza University of Rome successfully teleported the polarisation state of a single photon between two physically separated quantum dots. This achievement represents a crucial step towards scalable quantum relays and the practical implementation of a quantum internet.
Researchers at the University of Warwick and National Research Council of Canada have created a new quantum material with unprecedented electrical conductivity, enabling faster and more efficient electronics. The breakthrough could lead to applications in quantum information processing, AI, and data-center hardware.
New research suggests that ocean turbulence and horizontal stirring will dramatically increase in the Arctic and Southern Oceans due to human-induced Global Warming. The study uses ultra-high-resolution simulations to investigate how mesoscale horizontal stirring (MHS) responds to warming, revealing a pronounced future intensification ...
Researchers have successfully demonstrated the feasibility of sending entangled photon pairs from ground stations to a satellite, overcoming previous barriers to quantum satellite communications. This breakthrough could pave the way for future quantum computer networks using satellite relays.
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.
The team's integrated chip coordinates quantum and classical data, speaks the same language as the modern web, and automatically corrects for noise. The approach paves the way for a future 'quantum internet,' which could enable advances like faster AI and new materials.
Researchers have demonstrated a type of quantum logic gate that drastically reduces the number of physical qubits needed for its operation. The Gottesman-Kitaev-Preskill (GKP) code has been translated into a physical reality, allowing for the first realisation of a universal logical gate set for GKP qubits.
A new study demonstrates how a single type of 'neglecton' particle can make Ising anyons universal, enabling any quantum computation through braiding alone. The breakthrough uses non-semisimple topological quantum field theories to overcome unitarity issues and unlock the full power of Ising-based systems.
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 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 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.
Scientists from TU Delft have demonstrated quantum spin currents in graphene without external magnetic fields, a crucial step towards spintronics and next-generation technologies. These robust spintronic devices promise advancements in quantum computing and memory devices.
Physicists at the University of Oxford have set a new global benchmark for qubit operation accuracy, achieving an error rate of just 0.000015%. This breakthrough could lead to more efficient and robust quantum computers, as reducing errors is crucial to their functionality.
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 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 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 developed a new liquid-crystal-based platform to handle hundreds of optical modes in compact two-dimensional setups, overcoming optical losses. This breakthrough enables the scalability of quantum simulations and all-optical AI systems.
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.
A study from UC San Diego's Rady School of Management finds that earnings reports can move stock prices in milliseconds, triggering significant movements. The research analyzed over 89 billion after-hours stock quotes and found a spillover effect, where one company's announcement affects other firms' stock prices.
Researchers have created quantum holograms using metasurfaces and nonlinear crystals, enabling precise control over entangled information. The technology holds promise for practical applications in quantum communication and anti-counterfeiting, with potential to increase information capacity and reduce system size.
A team of researchers observed first- and second-order dissipative phase transitions in a two-photon driven Kerr resonator, showcasing the transformative power of quantum systems. The study demonstrates the validity of theoretical predictions and opens new possibilities for engineering stable and responsive quantum systems.
Researchers developed a new approach using metasurfaces to generate multiphoton entanglement, simplifying the process while increasing efficiency. This breakthrough enables the creation of different types of entangled states and facilitates the fusion of multiple pairs into larger groups.
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.
The team led by Xiaolong Su prepares hybrid polarization-cat entangled state with OAM degree of freedom, demonstrating non-zero logarithmic negativities for various OAM states. This breakthrough enables increased information capacity in quantum communication and takes a crucial step towards hybrid quantum information processing.
For the first time, scientists have measured the quantum state of electrons ejected from atoms after absorbing high-energy light pulses. This technique provides a new way to study the interaction between light and matter, with potential applications in various fields of research.
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.
The quantum Hall effect produces a magnetic current in addition to the well-known electric current, allowing for more efficient devices. This breakthrough could enable the creation of new types of electronic devices without energy loss.
The University of Michigan's QuPID project seeks to develop robust quantum systems for applications like environmental monitoring, GPS navigation and semiconductor chip quality control. The team aims to create design kits for global adaptation and simplify instrumentation needed to manipulate light properties.
Physicists at the University of the Witwatersrand developed an innovative computing system harnessing laser beams and display technology to process multiple possibilities simultaneously. This approach could speed up complex calculations in fields like logistics and finance, with potential applications in quantum optimisation and machin...
Researchers at Heriot-Watt University have proposed a new method to filter out daylight noise from quantum signals, enabling all-day satellite transmission. The approach uses time and phase encoding to overcome the issue, allowing SatQKD to operate during dawn and dusk hours.
Researchers at DGIST have introduced a novel quantum state and mechanism for extracting and controlling quantum information using exciton and Floquet states in two-dimensional semiconductors. This discovery offers valuable insights into the exciton formation process, advancing quantum information technology.
Researchers have discovered a new phenomenon in quantum-driven superconductors that could lead to more precise control of driven quantum systems. The study, led by IU Professor Babak Seradjeh, explores the role of Floquet Majorana fermions in the Josephson effect and their potential for developing stable quantum computers.
A three-dimensional quantum error correction architecture was discovered, which can handle errors scaling like L<sup>2</sup> (LxL) in two-dimensions. This breakthrough promises to enhance the reliability of quantum information storage and reduce physical computing resources needed for 'logical qubits', paving the way for a more compact
Researchers at Shanghai Jiao Tong University develop a novel method for broadband frequency conversion using X-cut thin film lithium niobate, achieving a bandwidth of up to 13 nanometers. This breakthrough enables on-chip tunable frequency conversion, opening the door to enhanced quantum light sources and larger capacity multiplexing.
Researchers have developed a new multi-functional device that enables simultaneous optical, microwave, and strain control of multiple solid-state color centers. The device is promising for advancing the scalability of solid-state color centers in larger quantum computers and networks.
Researchers from UCLA's California NanoSystems Institute and their colleagues have received a $1 million grant to develop quantum sensors with unprecedented precision. The grant will enable the creation of cutting-edge quantum technologies for various applications, including navigation, telecommunications, and medicine.
Researchers developed a new superconductor material that uses a delocalized state of an electron to carry quantum information. The material could be used to create low-loss microwave resonators for quantum computing, which is critical for reducing decoherence and increasing the stability of qubits.
Researchers develop a modular approach to scaling quantum processors using semiconductor technology and long-distance entangling links. This enables the creation of small arrays of qubits that can be connected to form larger systems, overcoming challenges in controlling individual qubits and maintaining coherence.
A team of researchers has demonstrated a novel way of storing and releasing X-ray pulses at the single photon level, enabling future X-ray quantum technologies. This breakthrough uses nuclear ensembles to create long-lived quantum memories with improved coherence times.
Researchers at Argonne National Laboratory and Cornell University have developed a new method for measuring atomic strain in diamond using X-ray imagery. By correlating spin and strain properties, the team created an equation that relates these two phenomena, opening up new avenues for quantum sensing.
Silicon photonics enables frequency-entangled qubits, allowing secure quantum information distribution across a five-user quantum network. The breakthrough promotes advancements in quantum computing and ultra-secure communications networks.
Scientists at Forschungszentrum Jülich used a quantum annealer to model a real-life quantum material and showed that the device can mirror microscopic interactions between electrons. This advancement has significant implications for solving complex material science problems and developing energy-efficient electronic devices.
A groundbreaking study introduces a method for sorting vector structured beams with spin-multiplexed diffractive metasurfaces, promising significant advancements in optical communication and quantum computing. This technology enables precise control over complex light beams, opening new avenues for scientific exploration.
Researchers at Lancaster University and Radboud University Nijmegen have discovered a novel pathway to modulate and amplify spin waves at the nanoscale, paving the way for dissipation-free quantum information technologies. The study's findings could lead to the development of fast and energy-efficient computing devices.
Researchers at Harvard University have successfully demonstrated the first metro-area quantum computer network in Boston, using existing telecommunication fiber to send hacker-proof information via photons. The breakthrough overcomes signal loss issues, enabling the creation of a secure quantum internet.
A new device uses small amounts of light to process information, offering significant energy improvements over conventional optical switches. This technology could enable quantum communications, providing a promising alternative for data security against rising cyberattacks.
Researchers developed a probabilistic approach to generate optimal sequences for execution on quantum computers, reducing search time by several orders of magnitude. The new method enables efficient searches within classical computational resources, contributing to the realization of the quantum Internet and improved performance.
Researchers have adapted a microwave circulator to precisely tune nonreciprocity in quantum computing, simplifying future work. The integrated nonreciprocal device enables controllable quantum interactions, paving the way for more sophisticated quantum computing hardware.
A team of researchers created a single negatively charged lead-vacancy center in diamond, which emits photons with specific frequencies not influenced by the crystal's vibrational energy. This characteristic makes the PbV center a promising building block for large-scale quantum networks.
Researchers at MIT have discovered a new way that neutrons can interact with materials, potentially providing insights into material properties and quantum effects. The discovery involves the binding of neutrons to nanoscale atomic clusters called quantum dots.
A Helmholtz-Zentrum Dresden-Rossendorf research team introduces a new approach for transducing quantum information by harnessing the magnetic field of magnons within microscopic magnetic disks. This method could enable more efficient and effective control over qubits, paving the way for practical quantum computing applications.
Researchers at Paderborn University have developed a new method for determining the characteristics of optical quantum states using photon detectors, enabling precise knowledge essential for quantum computing and information processing.
A team at HZB has developed a new measurement method that accurately detects tiny temperature differences in the range of 100 microkelvin in the thermal Hall effect. This allows for the study of quantum materials and their exotic properties.
Researchers at ETH Zurich have discovered a potential platform for spin qubits in bilayer graphene, with ultra-long-lived valley states. The study finds that the valley degree of freedom in BLG is associated with quantum states that can survive for over half a second.