Articles tagged with Quantum Entanglement
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Researchers achieved orders of magnitude higher link efficiency compared to traditional methods using telecommunication fibers. Distributed entangled photons enable secure quantum key distribution and variant quantum teleportation protocols.
Researchers developed a technique called entanglement distillation to enhance quantum entanglement, confirming its effectiveness across two meters. The approach accounts for interactions between particles and environment, enhancing the connection by iterating on raw states.
Researchers have discovered that all entangled states of two particles have a unique classical fingerprint. This breakthrough enables the certification of quantum computers and encryption devices, ensuring their authenticity. The discovery uses a simple set of measurements to act as an identity check for any two-particle entangled state.
Scientists at EPFL develop a microwave resonator coupled to a metallic micro-drum, creating a quantum reservoir that can shape the states of microwaves. The findings enable novel phenomena in cavity optomechanical systems.
Researchers are developing phononic computers that can process vast amounts of information, rivaling quantum computers' capabilities. These 'phi-bits' store data in a superposition state, reducing sensitivity to environmental conditions.
Researchers at Hong Kong University of Science and Technology demonstrated a violation of Bell's inequality using frequency-bin entangled narrowband biphotons generated via spontaneous four-wave mixing. This finding suggests the possibility of encoding and decoding qubit information in the time domain.
Researchers at CIFAR have successfully bred Schrödinger cat states in optics, amplifying classical states of light beyond microscopic limits. This breakthrough could lead to applications in quantum communication, teleportation, and cryptography.
Researchers developed a genetic algorithm to quantify conclusions about the rejection of classical notions of causality. The algorithm mapped out many dimensions of the departure from classical that quantum correlations exhibit.
Researchers at University of Queensland and University of Sussex have developed a way to recycle atoms, improving the performance of atom interferometers. This technique enables ultra-precise measurements of accelerations, rotations, and gravitational fields, with applications in mineral exploration, hydrology, and navigation.
Researchers found nonlocal correlations in natural systems, which are incompatible with principles of information and energy transfer. The study proposes a new method to detect these correlations, shedding light on the fascinating problem of nonlocality in quantum many-body systems.
Recent advances in quantum image processing (QIP) have improved computing speed, guaranteed security, and minimal storage requirements. QIP technologies utilize entanglement and parallelism to capture, manipulate, and recover quantum images.
Researchers at the University of East Anglia discovered a new mechanism for creating paired light particles, which could have significant implications for quantum physics. The findings suggest that photon pairs can be emitted from spatially separated points, introducing positional uncertainty of fundamental quantum origin.
Scientists found that entangled quantum information shared between two regions of a container is determined by surface area, not volume, in superfluid helium. This discovery points to deeper understanding of reality and may be a step toward a long-sought quantum theory of gravity.
A team of physicists at the University of Warsaw has created a multidimensional entangled state of a single photon and a trillion rubidium atoms. By storing the photons in the laboratory for several microseconds, they have demonstrated the joint entanglement, resolving the long-standing paradox of Einstein-Podolsky-Rosen.
Physicists at Lomonosov Moscow State University have created a new technique for generating entangled photon states, exhibiting correlated pairs that can be used in quantum cryptography. The technique uses spatial entanglement creation and has shown improved efficiency compared to previous methods.
Physicists have demonstrated quantum entanglement using ancient photons from stars, closing the freedom-of-choice loophole and supporting the concept of 'spooky action at a distance'. The experiment uses highly entangled pairs of photons produced on the roof of a laboratory in Vienna, shot towards detectors several city blocks away.
Scientists at the University of the Witwatersrand have made a groundbreaking discovery that allows for real-time error correction in quantum communications. By utilizing classical entangled light, they can establish secure quantum links over long distances, paving the way for major advances in data transfer and encryption.
A research team at TU Wien developed a new method that combines strong measurements with weak measurements to reconstruct quantum states. This approach allows for higher precision and accuracy in determining the quantum state, reducing the need for post-processing.
Researchers from Moscow Institute of Physics and Technology develop a method to connect two electrons in a qudit, paving the way for compact high-level quantum structures. This breakthrough could lead to practical applications such as efficient solar cells and new drugs.
Physicists have observed strong signs of a rare quantum spin liquid in the YbMgGaO4 crystal, which could lead to the discovery of hundreds of new materials for quantum computing. The crystal's unique properties allow for 'spooky' entanglement between multiple particles, potentially enabling the creation of exotic states of matter.
Researchers at the University of Vienna have made significant breakthroughs in transmitting twisted light over long distances, exceeding 100 kilometers. They also demonstrated record-breaking quantum entanglement with 5-digit quantum numbers using a novel technique developed in Australia.
The University of New Mexico's CQuIC will receive a five-year, $2.2 million grant from the National Science Foundation to delve deeper into quantum information and computing. This award solidifies CQuIC as a leading research hub in theoretical physics, enabling researchers to make new progress toward quantum computing.
The NSF has awarded $12 million to develop systems that use photons in pre-determined quantum states for encrypting data. Researchers will engineer a quantum communication system on a chip, which could operate at room temperature with low energy.
Scientists from Oxford University have successfully created a quantum logic gate with unprecedented 99.9% precision, paving the way for more efficient processing and simulation capabilities in quantum computing. This achievement is a significant step towards building a functional quantum computer.
Researchers at UCSB have uncovered a link between classical chaos and quantum entanglement using controllable quantum systems. Their findings suggest that thermalization is the driving force behind both chaos and entanglement in quantum systems, with implications for quantum computing.
The second quantum revolution harnesses entanglement to enable new applications like quantum communications, metrology and computing. Quantum processors will advance simulations and universal calculations, transforming science and economics.
A new method to pack quantum computing power into a small space and control it was devised by Penn State researchers. The technique uses laser light and microwaves to precisely control the switching of individual qubits, enabling calculations impossible for classical computers.
Physicists from Russia and France have devised a method to create a quantum entangled state, enabling precise measurement of large distances. This technique could improve the accuracy of optical interferometers used in gravitational wave detection.
Researchers at University of Innsbruck successfully simulated lattice gauge theories and particle-antiparticle pairs using a quantum computer. This breakthrough paves the way for studying complex aspects of the Standard Model, complementing high-energy physics experiments.
Researchers at RMIT University have developed a method to efficiently detect high-dimensional entanglement, a crucial aspect of quantum computing. This breakthrough could significantly improve the performance of quantum computers by reducing the number of measurements needed to validate their functionality.
The Deutsche Forschungsgemeinschaft (DFG) will establish 20 new Collaborative Research Centres (CRCs), receiving €174 million in funding. The CRCs will investigate various topics, including quantum systems and the adaptability of plants.
Researchers create a quantum Hall material of light and study its behavior in curved space, confirming a previously untested theory. This breakthrough allows for new interactions between photons and opens up possibilities for exotic quantum liquid states of light.
Physicists at NIST create a quantum simulator by entangling up to 219 beryllium ions, enabling simulations that challenge classical computers. The technique also helps improve atomic clocks and models complex physics phenomena.
Researchers from Singapore and UK test a compact device in space that creates and measures pairs of light particles, a precursor to entangled photons. The technology aims to connect powerful quantum computers globally, enabling secure keys for secret messaging.
Scientists have successfully induced quantum coherence in a large number of photons, allowing for complex quantum states to be manipulated and applications for computation and communication to be explored. The findings represent a significant breakthrough in achieving quantum coherence at a macroscopic scale.
A team of Yale scientists has created a more exotic type of Schrödinger's cat-like state that can exist in two boxes simultaneously, leveraging entanglement to enable error correction and logical operations in quantum computing. This breakthrough builds upon decades of development in circuit quantum electrodynamics.
Scientists at Washington University in St. Louis use a new instrument to detect light in a way that reveals the atom's evolution and potential control over entangled partners. This approach may enable quantum control and enhance fluorescence imaging.
A team of physicists has proposed an experiment that could detect entangled photons directly, paving the way for new applications in quantum physics. The experiment involves amplifying entangled photons 100-fold and using a special technique to preserve their quantum physical effect.
A team of researchers has built a chip that generates multiple frequencies from a robust quantum system producing time-bin entangled photons. This feature can enable multiplexed and multi-channel quantum communications and increased quantum computation information capacity.
Researchers at UNSW Australia have demonstrated that individual atoms placed precisely in silicon can act as a quantum simulator, mimicking the weird interactions of electrons in materials. The study allows for the simulation of complex quantum systems and has the potential to design new exotic materials and test fundamental aspects of...
Researchers have observed Bell correlations for the first time in a large system of 480 atoms, indicating that properties may exist independently but not deterministically. This finding opens up new possibilities in quantum technology and basic research.
Researchers use compression software to reveal quantum correlations in experimental data, detecting evidence of entanglement between particles. The technique shows a value exceeding zero, proving the system has crossed the classical-quantum boundary.
RMIT researchers have successfully trialled a quantum processor capable of routing quantum information from different locations, opening a pathway towards the first quantum data bus. This breakthrough has significant implications for future quantum technologies, including quantum computing and secure communication.
Researchers at University of Rochester demonstrate twisted light correlations for remote sensing applications, including detecting rotating black holes and object detection by lidar. Random fluctuations in intensity give rise to correlations in twisted beams, offering a new approach without requiring lasers or entangled photons.
Scientists successfully shifted the frequency of a single photon, opening up new possibilities for wavelength division multiplexing in optical quantum communication. The breakthrough uses a room-temperature diamond quantum memory to manipulate light at extremely short pulse lengths.
Researchers from Griffith University have successfully implemented a simplified version of the quantum Fredkin gate, a challenging circuit that enables efficient processing in quantum computers. This achievement could lead to more powerful and compact quantum computing systems.
Researchers have developed a new method to detect entanglement in many-particle systems, overcoming the challenge of scaling exponentially with system size. This breakthrough allows for the quantification of entanglement in macroscopic objects and has applications in quantum metrology, simulations, and solid-state physics.
A team of researchers from INRS has successfully generated multiphoton entangled quantum states using on-chip optical frequency combs. This breakthrough paves the way for practical applications of quantum computing, enabling secure data transfer and superfast processing.
Recent study confirms wave-particle duality in quantum mechanics by recreating John Archibald Wheeler's 'great smoky dragon' thought experiment. The research demonstrates that the nature of light is not fixed until observed, with implications for quantum cryptography and computing.
Researchers have achieved a new milestone in quantum physics by entangling three particles of light in a high-dimensional quantum property. This breakthrough has the potential to revolutionize quantum encryption and secure communication, enabling multiple parties to share information with unconditional security.
New research by Aephraim Steinberg and colleagues shows that quantum particles can exhibit 'surrealistic' behavior, contradicting the De Broglie-Bohm theory's claim of realistic trajectories. The findings suggest that non-locality is key to understanding these seemingly 'surreal' paths.
Researchers at JQI develop interface between photons and single electrons, enabling fast interaction and scalable integration on a chip. This breakthrough advances quantum networks and enables entanglement distribution, secret communication, and complex quantum devices.
Scientists Kaspar Sakmann and Mark Kasevich developed a new method to calculate effects in ultra-cold atom clouds, which can only be explained by quantum correlations between many atoms. This breakthrough enables accurate descriptions of complex many-body systems, such as Bose-Einstein condensates and collisions between these states.
Researchers at Purdue University and Tsinghua University propose a novel method to teleport the internal quantum state and center-of-mass motion state of a microorganism. This breakthrough has significant implications for potential future applications in quantum information and organism teleportation.
Researchers from Linköping University discovered that energy-time entanglement is vulnerable to attack, allowing eavesdropping on traffic without detection. They propose countermeasures to solve the problem.
Researchers at Oxford's NQIT Hub develop a hybrid logic gate using calcium-40 and -43 ions, demonstrating precision beyond the fault-tolerant threshold. This achievement advances the development of trapped-ion quantum computing and its potential to solve complex problems in chemistry and biology.
Physicists at NIST have performed logic operations with two atoms of different elements, a hybrid design that could be an advantage in large computers and networks. The experiment demonstrates the feasibility of mixed-atom gates, which rely on entangling ions using custom traps and laser beams.
Researchers demonstrate macroscopic entanglement generation at room temperature using infrared laser light and electromagnetic pulses. The technique has important implications for future quantum devices, including biological sensing inside living organisms and long-distance entangled states.
A team at Australia's University of New South Wales has proven that a quantum version of computer code can be written and manipulated using two quantum bits in a silicon microchip. The advance removes lingering doubts about the reliability of such operations, enabling powerful quantum computers to become a reality.
Researchers demonstrate entanglement's role in quantum mechanics, ruling out local realism with highly correlated particle measurements. The NIST experiment achieves definitive results, surpassing previous studies' limitations.