Articles tagged with Quantum Entanglement
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Researchers at the Max Planck Institute have successfully generated up to 14 entangled photons using a single atom, enabling efficient creation of quantum computer building blocks. This breakthrough could facilitate scalable measurement-based quantum computing and enable secure data transmission over greater distances.
Physicists have developed a 'master equation' to understand feedback control at the quantum level, enabling precise real-time control over quantum systems. This breakthrough has the potential to revolutionize quantum technologies by exploiting quantum effects and mitigating fragile system properties.
The University of Delaware and the University of New Mexico are collaborating on a $4 million grant to develop quantum photonics technologies. This initiative aims to prepare a skilled workforce for the growing quantum computing market, projected to grow from $486 million in 2021 to $3.2 billion by 2028.
Scientists from Göttingen and Lausanne successfully created electron-photon pairs in an electron microscope for the first time. This breakthrough enables researchers to harness free electrons and photons in a controlled manner.
Researchers from the University of Pennsylvania establish a relationship between topology and entanglement, tying two major principles in physics together. The connection reveals that the genus of the Fermi surface is closely related to a measure of quantum entanglement called mutual information.
Scientists have successfully implemented the world's fastest two-qubit gate in a quantum computer, achieving an impressive speed of 6.5 nanoseconds using cold atoms cooled to near absolute zero and optical tweezers. This breakthrough has significant implications for the development of ultrafast quantum computing hardware.
Physicists have created a way to simulate quantum entanglement between interacting particles using neural networks and fictitious 'ghost' electrons. This approach enables accurate predictions of molecule behavior, which could lead to breakthroughs in pharmaceutical development and material design.
Researchers demonstrate device-independent quantum key distribution using quantum entanglement, paving the way for secure communication. The breakthrough ensures security without relying on the eavesdropper's computational power.
A research team from HKU discovered clear evidence of a highly entangled quantum matter, known as a quantum spin liquid (QSL), through large-scale simulations on supercomputers. The findings suggest the existence of QSLs in nature and provide new insights into topological order and quantum entanglement.
Researchers have demonstrated a significant improvement in fibre-integrated quantum memories, achieving an entanglement storage time of over 1000 microseconds. The fully integrated device enables the use of sophisticated control systems, allowing for improved scalability and compatibility with telecommunications infrastructure.
Physicists have successfully entangled two atomic quantum memories over a 33-kilometer-long fiber optic connection, setting a new record. The entanglement is mediated via photons emitted by the two quantum memories and has potential applications in large-scale quantum networks and secure communication protocols.
Researchers at the University of Colorado Boulder and NIST have successfully demonstrated reading out signals from superconducting qubits using laser light, preserving the qubit's information. This breakthrough could enable the creation of a quantum internet, allowing for secure communication over long distances.
A team of physicists has developed a way to perform high precision measurements without relying on special entangled states of light. The breakthrough uses ring resonators, which can be mass manufactured using standard processes, and enables the creation of chip-scale photonic sensors operating at the quantum limit.
Researchers at the University of Innsbruck have successfully implemented a universal set of gates on encoded logical quantum bits, enabling fault-tolerant quantum computing. The demonstration showcases two essential gates: CNOT and T-gates, which are crucial for programming all algorithms.
Researchers at QuTech have demonstrated the first non-adjacent node-to-node teleportation of quantum information in a network, leveraging entangled states and quantum processors. This breakthrough enables future applications like secure data sharing and precise quantum sensors.
A comprehensive review of non-separability in classical light explores its potential for fundamental science and applications. The study introduces a unified framework for classifying non-separable states involving different degrees of freedom of light, offering a timely perspective on the field.
A theoretical study reveals that long-range quantum entanglement can persist at temperatures above absolute zero if a three-way interaction is present. This finding has significant implications for the development of room-temperature stable quantum devices, which could revolutionize future energy transport and computing.
Scientists have developed a transparent device that produces a hidden image when light shines on it, using liquid crystals to recreate an ancient light trick. The technology has the potential to enable reconfigurable displays and stable 3D images.
A team of scientists at Argonne National Laboratory has developed a new qubit platform formed by freezing neon gas into a solid and trapping an electron there. The platform shows great promise in achieving ideal building blocks for future quantum computers, with promising coherence times competitive with state-of-the-art qubits.
Researchers discovered a novel connection between superposition and entanglement that goes beyond quantum theory, applicable to more exotic theories. This equivalence has practical implications for ultra-secure encryption, including popular protocols like BB84.
A Harvard-led team created a new method for processing quantum information that allows for the dynamic change of atoms' layout during computation, expanding capabilities and enabling self-correction of errors. This approach uses entanglement to connect atoms remotely and can process exponentially large amounts of information.
The study investigates the role of physical principles in quantum Darwinism, finding that it relies on non-classical features, specifically entanglement, to emerge via natural selection. The researchers employed generalized probabilistic theories to analyze and compare different physical theories.
Researchers have developed a key experimental device for future quantum physics-based technologies by coupling nanomechanical oscillators with qubits. This enables the manipulation of quantum states in mechanical oscillators, generating quantum mechanical effects that could empower advanced computing and precise sensing systems. The de...
Researchers at Princeton University have achieved an unprecedented level of fidelity in two-qubit silicon devices, paving the way for the use of silicon technology in quantum computing. The study's findings suggest that silicon spin qubits have advantages over other qubit types, including scalability and size limitations.
Assistant Professor Henry Yuen at Columbia University will receive a $675,000 grant to develop verification protocols for entanglement theory and explore broader mathematical applications. His work aims to solve fundamental problems in computer science, mathematics, and physics using quantum entanglement.
Physicists at the University of Innsbruck have developed a programmable quantum sensor that can measure with even greater precision, using tailored entanglement to optimize performance. The sensor autonomously finds its optimal settings through free parameters, promising a significant advantage over classical computers.
A UNIGE team has successfully stored a quantum bit for 20 milliseconds in a crystal-based memory. This achievement marks a major step towards the development of long-distance quantum telecommunications networks.
Quantum charging technology has been developed to charge batteries at a faster rate, cutting the charging time of electric vehicles from ten hours to three minutes. The technology uses quantum resources to charge all cells within the battery simultaneously, leading to a significant speedup in charging speed.
Scientists have achieved efficient quantum coupling between two distant magnetic devices, which can host magnons and exchange energy and information. This achievement may be useful for creating new quantum information technology devices.
Recent research on gravitational wave detectors shows large objects can be shielded from environmental influences to become one quantum object. This decoupling enables measurement sensitivities impossible without it, advancing sensor technology.
Researchers at the University of Innsbruck have successfully manipulated dark states in superconducting circuits using microwave radiation. The team's discovery opens up new possibilities for quantum simulations and information processing, which could have significant implications for fields such as chemistry and materials science.
Researchers have leveraged quantum information theory techniques to amplify entanglement in the Hawking effect, a process previously difficult to test due to the faint nature of Hawking radiation. By illuminating event horizons with appropriately chosen quantum states, they can tunably stimulate entanglement production.
A research team at POSTECH has developed a weak-value amplification method to achieve quantum metrology precision without using entangled resources. This breakthrough enables the practical use of quantum metrology by verifying that entanglement is not an absolute requirement for reaching the Heisenberg limit.
A new theorem shows that quantum entanglement eliminates exponential overhead in training quantum neural networks, enabling scalability and reducing data requirements. This breakthrough gives hope for a quantum speedup, where quantum machines outperform classical counterparts.
The research team measured Rényi entanglement entropy at DQCP and found scaling behaviour that contradicts conventional LGW phase transition descriptions. The findings confirm a revolutionised understanding of phase transition theory and raise questions about deconfined quantum criticality.
Scientists at Georgia Tech Research Institute have demonstrated a new approach for transporting trapped ion pairs through a single laser beam to create entangled qubits. This method reduces the need for multiple optical switches and complex controls, potentially simplifying quantum systems.
Researchers have achieved 99% accuracy in quantum computing using silicon-based devices. The breakthrough enables the creation of large arrays of qubits capable of robust computations, overcoming a significant challenge in building reliable quantum computers.
Physicist Guido Pagano has won a prestigious CAREER award from the National Science Foundation (NSF) to study quantum entanglement and develop new error-correcting tools for quantum computation. He aims to understand how measurement affects entangled systems and create tools to correct errors caused by quantum decoherence.
Researchers at TU Delft and UNICAMP successfully teleported the quantum state of a single photon to an optomechanical device containing billions of atoms. This achievement paves the way for creating signal repeaters in a future quantum internet, enabling long-distance quantum communication.
Researchers from Politecnico di Torino and INRIM have developed a quantum conformance test that uses entangled light sources to accurately detect conforming or defective products. The test reduces classification errors and improves monitoring efficiency, showing promising prospects for practical applications.
Researchers at Stanford University have developed a miniaturized frequency comb that can generate non-classical light, enabling the study of quantum entanglement and opening up new pathways for quantum computing. The microcomb's precise spacing allows for detailed measurement of its finer features.
Researchers at Yokohama National University have developed an interface approach to control diamond nitrogen-vacancy centers, allowing direct translation to quantum devices. This enables remote quantum entanglement and secure information exchange over long distances.
Researchers demonstrate that quantum networks' predictions differ when postulates are phrased in real numbers. The study proposes an experimental setup involving two sources and three measurement nodes, where complex quantum theory's predictions cannot be expressed by their real counterparts.
Theorists at the University of Chicago have developed a new scheme for trapping single photons in a cavity, creating a 'wall' that prevents further photons from entering. This mechanism allows two sources to emit selected photons into a cavity before destructive interference cancels them out.
Researchers develop novel detection method to identify high-dimensional entanglement states, overcoming challenges faced by traditional methods. The study proposes a protocol to automatically search for optimal certification methods, enabling the creation of high-dimensional quantum information processing systems.
Researchers at Harvard have successfully observed quantum spin liquids, a previously unseen state of matter that has been elusive for nearly 50 years. By manipulating ultracold atoms in a programmable quantum simulator, the team was able to create and study this exotic state, which holds promise for advancing quantum technologies.
Scientists from TUM and Google Quantum AI used a highly controllable quantum processor to simulate exotic particles called anyons, which can emerge as collective excitations in two-dimensional systems. The study reveals the properties of these particles through braiding statistics, a key feature of topologically ordered states.
The research team simulated the occurrence of superradiant phase transition (SPT) beyond the no-go theorem by introducing anti-squeezing effects. They achieved this through a nuclear magnetic resonance quantum simulator, demonstrating that SPT can occur even with the A2 term present.
Researchers have found a complete solution to the problem of whether catalytic transformations are possible, revealing that quantum catalysts can boost quantum processes. This breakthrough has practical applications in quantum cryptography, secure communication, and efficient state merging, making noisy states useful in quantum computing.
Researchers at Stanford University have proposed a new design for photonic quantum computers that can operate at room temperature and require fewer components. The proposed design uses a laser to manipulate an atom, which then modifies the state of photons via quantum teleportation, enabling the creation of complex calculations.
Researchers created a new ultra-thin material with quantum properties emulating rare earth compounds. The material exhibits the Kondo effect, leading to macroscopically entangled state of matter producing heavy-fermion systems.
The new quantum microscope uses entangled photons to create interference patterns on the sample, reducing noise levels and increasing sensitivity by over 25%. This allows for high-resolution imaging of transparent cells without damaging them.
Osaka University researchers develop nanoantenna to enhance quantum information transfer, enabling more efficient and secure data processing. The device focuses light onto a single quantum dot, improving photon absorption by up to 9 times.
Researchers find that triangular-patterned materials can exhibit a mashup of three different phases, with each phase overlapping and competing for dominance. As temperature increases, the material becomes more ordered due to the breaking down of these competing electron arrangements.
A recent study published in PRX Quantum reveals that quantum machine learning algorithms are hindered by excessive entanglement, leading to a phenomenon known as barren plateaus. By limiting depth and connectivity, researchers propose a solution to avoid these regimes and successfully train quantum neural networks.
Researchers at University of Copenhagen have developed a new quantum circuit that can operate and measure all four qubits simultaneously. This breakthrough resolves a significant engineering headache in the development of large functional quantum computers.
Researchers at the University of Rochester have generated an incredibly large bandwidth using a thin-film nanophotonic device, overcoming limitations of existing devices. The breakthrough could advance metrology, sensing, and quantum networks.
The 'strange metal' state in high-temperature superconductors exhibits a linear function of temperature, suggesting the involvement of quantum entanglement. By suppressing charge density waves, researchers were able to restore this state, expanding its range and offering a promising new avenue for research.
Researchers from Nagoya University have found a dynamical one-parameter scaling for surface roughness and entanglement entropy in random quantum systems. This discovery has implications for understanding nonequilibrium physics and classifying universal phenomena.
Experts successfully connect quantum computers and sensors on a practical scale, enabling entanglement-based quantum communications. The team demonstrated scalability of entanglement-based protocols across three remote nodes using flexible grid bandwidth provisioning.