Articles tagged with Quantum Entanglement
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A research team has demonstrated how quantum mechanical entanglement can be used to measure several physical parameters simultaneously with increased precision. By distributing atoms into up to three spatially separated clouds, the effects of entanglement act at a distance, reducing measurement uncertainties and canceling disturbances.
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 the University of Oxford have created magneto-sensitive fluorescent proteins that can interact with magnetic fields and radio waves. The breakthrough uses quantum mechanical interactions within proteins to enable practical technologies.
Researchers at Paderborn University and TU Dortmund University have developed materials smaller than the wavelength of light and precisely manipulated photons. They created quantum light sources for quantum computing and ultra-fast communication, as well as low-temperature electronics to control quantum experiments.
A team from the University of the Witwatersrand and Huzhou University discovered a vast alphabet of high-dimensional topological signatures, enabling robust quantum information encoding. This breakthrough utilizes orbital angular momentum to reveal hidden topologies in entangled photons.
Researchers successfully demonstrated entanglement swapping using sum-frequency generation between single photons with a high signal-to-noise ratio. This achievement is expected to contribute to the miniaturization and efficiency improvement of photonic quantum information processing circuit, as well as the extension of transmission di...
Kobe University's new web application combines quantum game theory with jazz improvisation to explore creativity. Users can interact in a 'quantum jam session', receiving real-time visual and auditory feedback on their strategies.
Researchers at MIT have developed a new method to improve the stability of optical atomic clocks by reducing quantum noise and stabilizing a laser. The approach, known as global phase spectroscopy, doubles the precision of an optical atomic clock, enabling it to discern twice as many ticks per second compared to traditional setups.
The development of a new pH probe, SITE-pHorin, offers precise organellar pH imaging in living cells. By harnessing quantum-entanglement interactions, the probe boasts unparalleled sensitivity and resolves long-standing controversies over mitochondrial and lysosomal pH.
Researchers at Rice University discovered that energy transfers faster between molecular sites when starting in an entangled state. This finding has implications for creating more efficient light-harvesting materials and understanding biochemical processes like photosynthesis.
A new paper in Science reports proven quantum advantage, where entangled light lets researchers learn a system's noise with very few measurements. The experiment cuts the number of measurements needed by an enormous factor, from 20 million years to just 15 minutes.
A new photonic router has been developed at Tohoku University, enabling the efficient routing of single and entangled photons with high fidelity. The router achieves low loss and high speed, making it compatible with existing telecom fiber networks.
Researchers at TU Wien have created a new type of time crystal through the interaction of particles in a two-dimensional lattice held by laser beams. The emergence of this phenomenon challenges previous thought that quantum fluctuations could only hinder the formation of time crystals.
Researchers at U-M have established a quantum testbed that links two labs with optical fibers, enabling remote quantum experiments and expanding access to quantum technology development. The testbed allows for the transfer of entangled light over long distances, revolutionizing communication, computing, and scientific discovery.
Kyoto University researchers successfully developed an entangled measurement method for the W state, enabling efficient identification of entangled states. The team used a photonic quantum circuit and demonstrated its feasibility with three-photon W states.
Researchers at NIST have discovered a way to design entangled quantum objects called qubits to correct errors caused by environmental noise. This approach enables the sensor to become more robust in the face of noise while maintaining its additional sensing advantage. The findings, detailed in Physical Review Letters, could lead to the...
Researchers at the University of Innsbruck have demonstrated a powerful node for quantum networks using a string of calcium ions in a prototype computer. The node achieved an average ion-photon entanglement fidelity of 92 percent, paving the way for connecting entire quantum processors across laboratories or continents.
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.
Researchers at the University of Innsbruck have demonstrated a new technique to generate high-quality two-photon states from quantum dots using stimulated two-photon excitation. The approach sidesteps limitations of traditional methods, including expensive and loss-inducing electronic components.
Researchers have observed quantum entanglement in heavy fermions governed by the Planckian time, a fundamental unit of time in quantum mechanics. This phenomenon opens up possibilities for harnessing it in solid-state materials to develop a new type of quantum computer.
Researchers have successfully extended the lifetime of quantum batteries by 1,000 times, outperforming previous demonstrations. The new method uses molecular triplets to store energy more efficiently, paving the way for improved designs.
Researchers from the University of Warsaw and the University of British Columbia have discovered a new type of exotic quantum excitation called a lone spinon. This finding deepens our understanding of magnetism and could have implications for the development of future technologies such as quantum computers.
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.
A team of scientists has simulated spontaneous symmetry breaking (SSB) at zero temperature using a quantum processor. The system evolved from an antiferromagnetic state to a ferromagnetic quantum state, revealing the formation of ordered patterns and quantum entanglement.
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.
Researchers from OIST develop new quantum AI method for image recognition based on boson sampling, achieving highly accurate results without complex training. The approach uses a linear optical network and preserves information, outperforming classical methods in various datasets.
Scientists at UC Riverside successfully measured the electric dipole moment of aluminum monochloride, a crucial diatomic molecule. The precise measurement will aid in quantum technologies, astrophysics, and planetary science.
NIST and partners use quantum mechanics to create a factory for truly random numbers, producing secure keys for cryptographic systems. The Colorado University Randomness Beacon (CURBy) broadcasts daily random numbers through a website.
Researchers have developed an integrated metasurface-integrated quantum analog computing system, simplifying phase reconstruction and achieving high signal-to-noise ratio at low photon levels. This technology has broad application potential in fields such as optical chips, wave function reconstruction, and label-free biological imaging.
Researchers discover that no universal purification protocol can guarantee improvements in fidelity of entangled states across all possible quantum systems. Instead, they emphasize the need for tailored error management strategies based on specific system characteristics.
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 developed a quantum cooling engine that manipulates energy flow without feedback control, relying solely on quantum measurements. The engine successfully reversed heat flow, with entanglement found to influence the energy exchange between the working substance and measurement apparatus.
A team of researchers achieved a 60-mode cluster state directly on a chip using optical microresonators, significantly larger than previous demonstrations. This breakthrough enables scalable quantum photonics for advanced computing, secure communications, and sensitive measurements.
Researchers have found a rare form of one-dimensional quantum magnetism in the metallic compound Ti₄MnBi₂, offering evidence into a previously theoretical phase space. The discovery bridges the gap between traditional magnetic insulators and complex electronic systems.
A team of theoretical physicists from Colorado designed a new type of quantum game that scientists can play on a real quantum computer. The researchers tested their game out on the Quantinuum System Model H1 Quantum Computer, highlighting its potential capabilities.
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.
Physicists have shown that particles produced in 'jets' retain information about their origins in subatomic particle smashups. The study establishes a direct connection between the 'entanglement entropy' at the earliest stage of jet formation and the particles that emerge as a jet evolves.
Researchers at Technion-Israel Institute of Technology have discovered a new type of quantum entanglement that exists in nanoscale systems. This discovery could lead to the development of new tools for designing photon-based quantum communication and computing components, as well as their significant miniaturization.
A team of physicists at Rice University has made a breakthrough in understanding the behavior of strange metals by leveraging quantum information theory. Electron entanglement peaks at a critical transition point, shedding new light on the exotic properties of these materials.
Researchers at Wits University have discovered a way to protect quantum information from environmental disruptions, offering hope for more reliable future technologies. By engineering specific topological properties in quantum states, they can preserve critical information even when disturbed by noise.
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.
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.
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.
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 at the University of Arizona are using two federal grants to develop novel areas in quantum information. They aim to improve measurement capabilities of quantum magnetic field sensors, which could impact navigation, medical imaging, and other fields. Additionally, they will work on developing quantum low-density parity-chec...
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.
Zuchongzhi-3 achieves quantum supremacy by outperforming classical supercomputers by 15 orders of magnitude, demonstrating the strongest quantum computational advantage in a superconducting system to date. The processor features 105 qubits and 182 couplers, with a coherence time of 72 μs and simultaneous gate fidelities exceeding 99%.
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.
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.
Researchers from UChicago Pritzker Molecular Engineering have demonstrated high-fidelity entanglement between two acoustic wave resonators, a significant breakthrough in the science of quantum sound. The team showed that they can entangle massive objects using collective motion of nanoscale mechanical vibrations.
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.
Researchers at JILA have developed a new method to create highly entangled states in atomic systems by allowing multiple ground levels per atom. This approach enables the generation of stable, interconnected atomic systems, which is crucial for quantum technologies like computing and secure communications. The study focused on four-ene...
Researchers propose a new strategy to stabilize quantum networks by rebuilding connections after each use, which leads to an eventual stable network state. The key is finding the optimal number of links to add, determined to be the square root of the number of users.
The demonstration used automatic polarization compensation to stabilize the polarization of a signal sent over a commercial network with no downtime. The approach enabled continuous transmission of signals for more than 30 hours without interruptions.
Researchers have developed a method to create photon pairs that achieves higher performance on a much smaller device using less energy. The new device, measuring just 3.4 micrometers thick, has the potential to enable significant gains in energy efficiency and technical capabilities of quantum devices.
Researchers at Queen Mary University of London have discovered a surprising connection between the Large Hadron Collider and the future of quantum computing. The study reveals that top quarks produce