Researchers at the University of São Paulo's Physics Institute have successfully entangled six light waves using an optical parametric oscillator. This achievement could lead to faster processing speeds and improve the feasibility of quantum computing by enabling the creation of systems with multiple entangled components.
SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalPhysical Review Letters·DateSep 6, 2018
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Researchers used light from distant quasars to determine measurements on pairs of entangled photons, finding correlations that exceeded Bell's original limit for a classically based mechanism. This strengthens the case for quantum entanglement and restricts options for the freedom-of-choice loophole.
SourceMassachusetts Institute of Technology·JournalPhysical Review Letters·DateAug 20, 2018
A team of Russian and German researchers created a system that can measure temperatures and magnetic fields at very small resolutions. By exploiting properties of quantum spin in crystal vacancies, they attained micron-level resolution in temperature measurement.
SourceAmerican Institute of Physics·JournalAIP Advances·DateAug 20, 2018
Researchers at Yokohama National University have demonstrated fault-tolerant universal holonomic quantum gates, paving the way for fast and reliable quantum computing. The team achieved this breakthrough by manipulating a geometric spin qubit in an NV center, enabling precise control over long-lived quantum memories.
SourceYokohama National University·JournalNature Communications·DateAug 13, 2018
A new quantum secret-sharing scheme prevents eavesdropping in noisy environments, improving the fidelity of encrypted messages. The scheme exploits the properties of entangled particles to enhance secret transmission.
SourceSpringer·JournalThe European Physical Journal D·DateJul 11, 2018
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Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.
A University of Oklahoma physics professor is using a National Science Foundation grant to explore the potential of spatial degree of freedom in long-distance quantum communications and imaging. The research could bring about a revolution in quantum information science by enabling large-scale quantum information transmission.
The researchers achieved a significant breakthrough in quantum computing by simulating a 64-qubit circuit using a novel partitioning scheme. This method reduces the computational complexity of quantum algorithms, enabling faster simulations and paving the way for future advancements in quantum machine learning and unsupervised learning.
SourceScience China Press·JournalScience Bulletin·DateJun 22, 2018
Researchers at ETH Zurich have developed a method to transmit quantum states deterministically over short distances, paving the way for more efficient and secure quantum computing and cryptography. The transmission rate reaches 80% fidelity, enabling entanglement creation between qubits up to 50,000 times per second.
Researchers at QuTech in Delft successfully generated quantum entanglement between two quantum chips faster than it's lost, enabling the creation of a future quantum internet. The breakthrough allows for the connection of multiple quantum nodes and the establishment of the world's first quantum network.
SourceDelft University of Technology·JournalNature·DateJun 13, 2018
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A team of researchers has found a way to couple and precisely control quantum systems using phonons, the smallest units of sound waves. This allows for the creation of a scalable quantum network, enabling new technological breakthroughs.
SourceVienna University of Technology·JournalPhysical Review Letters·DateJun 5, 2018
A new study reveals that ultracold paired particles called fermions behave even weirder than expected, flying with unique trajectories carved by spins, momenta, and energies. The researchers predict that fermions can mimic the behavior of bosons, adding new weirdness to the already established particle-wave duality.
SourceGeorgia Institute of Technology·JournalPhysical Review A·DateJun 4, 2018
Scientists have discovered that environmental noise can paradoxically maintain the coherence of quantum systems. Researchers at RIKEN Center for Emergent Matter Science used a three-particle system to demonstrate this phenomenon, which could help accelerate research into scaling up semiconductor quantum computers.
Researchers propose creating and analyzing new systems governed by entanglement properties directly connected to the original ones, making it easier to quantify experimentally. This innovative approach can be carried out in several experimental conditions, from atomic systems to superconducting circuits.
SourceScuola Internazionale Superiore di Studi Avanzati·JournalNature Physics·DateMay 29, 2018
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Scientists have created a module for quantum repeaters, enabling entanglement to be transmitted over several floors and potentially up to 20 kilometers. The breakthrough could lead to integrating quantum technologies into conventional telecommunications.
SourceSaarland University·JournalNature Communications·DateMay 22, 2018
Physicists develop novel strategy to probe entanglement Hamiltonian, providing direct access to entanglement spectrum and facilitating investigation of complex many-particle systems. This approach enables concrete statements about entanglement properties, overcoming the challenges posed by classical computers.
SourceUniversity of Innsbruck·JournalNature Physics·DateMay 21, 2018
Researchers at the University of the Basque Country and University of Hannover achieved quantum entanglement between two spatially separated Bose-Einstein condensates. This breakthrough could lead to significant improvements in fields like quantum computing, simulation, and metrology by creating large ensembles of entangled particles.
SourceUniversity of the Basque Country·JournalScience·DateMay 16, 2018
Scientists at the University of Innsbruck have successfully demonstrated fully-controlled free-space quantum interference of single photons emitted by a pair of effectively-separated entangled atoms. This breakthrough opens up new possibilities for building quantum computers and measuring physical properties with unprecedented precision.
SourceUniversity of Innsbruck·JournalPhysical Review Letters·DateMay 15, 2018
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A new theory explains the behavior of individual atoms in a recent experiment, revealing the existence of 'quantum many-body scars' that could help create robust quantum dynamics. This phenomenon is crucial for keeping atoms in a quantum state, which is necessary for processing and storing information in quantum computers.
SourceUniversity of Leeds·JournalNature Physics·DateMay 14, 2018
The BIG Bell Test challenged Einstein's principle of local realism by using human input to close a paradox known as the freedom-of-choice loophole. Participants contributed over 90 million bits, determining how entangled atoms and particles were measured in twelve laboratories worldwide.
SourceUniversity of Science and Technology of China·JournalNature·DateMay 10, 2018
The BIG Bell Test challenged Einstein's local realism by using human volunteers' unpredictable choices to close a stubborn loophole. Participants contributed over 90 million bits, demonstrating strong disagreement with local realism and introducing new methods in entanglement study.
SourceICFO-The Institute of Photonic Sciences·JournalNature·DateMay 9, 2018
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Researchers have observed stronger-than-binary correlations in quantum mechanics for the first time, utilizing three-dimensional entangled photon sources. The experiment, conducted 8 meters apart, demonstrates the existence of such correlations, which could lead to a deeper understanding of fundamental problems in quantum theory.
SourceUniversity of Science and Technology of China·JournalPhysical Review Letters·DateMay 8, 2018
Researchers have successfully observed the quantum mechanical Einstein-Podolsky-Rosen paradox in a system of several hundred interacting atoms, demonstrating precise predictions of measurement results. This breakthrough has implications for new sensors and imaging methods for electromagnetic fields.
Researchers at Aalto University have successfully generated and detected entanglement in massive mechanical oscillators, opening doors for new quantum technologies. The achievement uses a theoretical innovation developed by Dr. Matt Woolley and Prof. Aashish Clerk to stabilize exotic quantum states.
Yale researchers have achieved a major milestone in quantum computing by transmitting quantum data between two separate points using a new 'pitch-and-catch' technology. This innovation allows qubits to be interfaced with each other, enabling more complex algorithms and potentially faster computation speeds than classical computers.
SourceYale University·JournalNature Physics·DateApr 23, 2018
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Researchers at UCLA have discovered Majorana particles, which are critical building blocks for quantum computers due to their resistance to external interference. The discovery could lead to the development of robust topological quantum computing and potentially improve situational awareness for the US Army.
Researchers have successfully entangled 20 calcium atoms in an ion trap experiment, demonstrating controlled multi-particle entanglement between neighboring groups of particles. The achievement holds significant promise for practical applications such as quantum simulations and information processing.
SourceUniversity of Innsbruck·JournalPhysical Review X·DateApr 13, 2018
Researchers at ORNL's Quantum Information Science Group have developed methods to control dissipative behavior in quantum systems, allowing for advancements in quantum computing and sensing. The studies aim to probe and control quantum coherent dynamics in materials at the nanoscale.
SourceDOE/Oak Ridge National Laboratory·JournalPhysical Review B·DateMar 27, 2018
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AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.
Scientists have achieved a world record for trapped-ion logic gate precision, reaching accuracy of 99.8% and speeds of up to 60 times faster than previous records. The breakthrough could enable practical quantum computing by scaling up the system.
SourceUniversity of Oxford·JournalNature·DateMar 1, 2018
A team of MSU scientists developed a method to create two beams of entangled photons, measuring the delay between them. They achieved a narrow peak in the sum frequency signal with a width of 90 femtoseconds, setting a new record for entanglement correlation precision.
SourceLomonosov Moscow State University·JournalOptics Letters·DateFeb 27, 2018
Researchers developed machine learning software that allows computers to learn the quantum state of complex systems based on experimental observations. This approach enables faster tomography for quantum states and has implications for testing quantum computers with many qubits.
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Machine learning techniques can reconstruct a quantum system based on relatively few experimental measurements, allowing scientists to thoroughly probe complex systems exponentially faster than conventional methods. This method benefits the development of quantum computers and other applications of quantum mechanics.
SourceSimons Foundation·JournalNature Physics·DateFeb 26, 2018
Researchers at TU Wien demonstrate Poincaré recurrence in a multi-particle quantum system, studying collective quantities such as coherence lengths and correlation functions. This breakthrough reveals the long-sought phenomenon of quantum recurrence, where systems return to their initial state over time.
SourceVienna University of Technology·JournalScience·DateFeb 22, 2018
A team of researchers has demonstrated a novel method for splitting light beams into their frequency modes, allowing for the encoding of photons with quantum information. This breakthrough enables the creation of complex frequency states, which is crucial for quantum simulations and computations.
SourceDOE/Oak Ridge National Laboratory·JournalPhysical Review Letters·DateFeb 16, 2018
Researchers developed a novel verification method to prove large-scale entanglement with only a single measurement run, significantly reducing time and resources required. This breakthrough enables the reliable benchmarking of future quantum devices with unprecedented efficiency.
SourceUniversity of Vienna·Journalnpj Quantum Information·DateFeb 15, 2018
Scientists at the University of Waterloo have captured the first images of ultrafast photons that are energy-time entangled, enabling direct applications for quantum cryptography and communication protocols. This technique will allow for establishing highly secure communication channels over long distances.
SourceUniversity of Waterloo·JournalPhysical Review Letters·DateFeb 1, 2018
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Researchers have successfully coupled a single electron spin and a single photon on a silicon chip, enabling the transfer of quantum information between them. This breakthrough paves the way for scaling up quantum bits on silicon chips, a crucial step towards creating more powerful quantum computers.
SourceDelft University of Technology·JournalScience·DateJan 25, 2018
A cross-disciplinary team developed a satellite, Micius, to facilitate secure quantum key distribution globally. The system has achieved significant milestones, including decoy-state QKD with kHz rates over 1200 km distances, demonstrating the potential for an ultra-long-distance global quantum network.
SourceUniversity of Science and Technology of China·JournalPhysical Review Letters·DateJan 19, 2018
Researchers at USC Viterbi School of Engineering developed a new, energy-efficient frequency comb that can be used to encrypt data and protect the security of cryptocurrencies. The comb requires 1000x less power than traditional combs, making it suitable for mobile applications.
SourceUniversity of Southern California·JournalScience Advances·DateJan 11, 2018
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A team of researchers has successfully tested quantum nonlocality in the presence of photon loss using quantum teleportation. They demonstrated that entangled photons can still be verified even when many are lost during transmission, enabling the development of secure global quantum information networks.
SourceGriffith University·JournalScience Advances·DateJan 5, 2018
Researchers develop a new approach to analyze and reduce quantum noise in atomic systems, known as spin squeezing, which enhances measurement reliability at the quantum scale. The method involves redistributing uncertainty between two components of spin, improving precision and potentially enabling future quantum networks.
SourceSpringer·JournalThe European Physical Journal D·DateDec 22, 2017
Researchers developed trapped-ion quantum error correction protocols to detect and correct processing errors, enabling the creation of larger quantum computers. The study suggests that today's quantum computer prototypes can meet specific criteria with current ion-trap technologies.
SourceSwansea University·JournalPhysical Review X·DateDec 15, 2017
Researchers from UNIST and University of Maryland developed a core technology for quantum photonic devices using silicon chips. They integrated quantum dots with silicon photonic technologies to create single photon emitters, paving the way for innovative applications in quantum computing and communication.
SourceUlsan National Institute of Science and Technology(UNIST)·JournalNano Letters·DateDec 12, 2017
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Researchers at Princeton University have created a key piece of silicon hardware that controls quantum behavior between two electrons with extremely high precision. The demonstration of this nearly error-free gate opens the door to larger scale experiments and has the potential to scale to more qubits with even lower error rates.
A Northwestern University team creates quantum entanglement from a biological system using green fluorescent proteins. This finding advances scientists' understanding of biology and opens doors to exploit quantum mechanics for new applications.
SourceNorthwestern University·JournalNature Communications·DateDec 5, 2017
Researchers at Tsinghua University and Nanjing University of Posts and Telecommunications have successfully demonstrated entanglement-based quantum secure direct communication (QSDC) over 500m optical fibers. The system uses novel fiber-based quantum light sources to generate polarization entangled Bell states, enabling secure informat...
SourceScience China Press·JournalScience Bulletin·DateNov 30, 2017
Physicists at MIT and Harvard University have developed a new technique to manipulate quantum bits by trapping and arranging individual atoms. This breakthrough enables the simulation of complex systems like materials and optimization problems, such as the traveling salesman problem, exponentially faster than classical computers.
SourceMassachusetts Institute of Technology·JournalNature·DateNov 29, 2017
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Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.
Researchers at Google and UC Santa Barbara developed a new process for creating fully superconducting interconnects, compatible with existing qubit technology. This breakthrough aims to enable larger-scale quantum computers with millions of qubits.
SourceIOP Publishing·JournalQuantum Science and Technology·DateNov 29, 2017
Researchers at Lomonosov Moscow State University have developed a new time-resolved spectroscopy method that analyzes quantized light transmitted through samples without femtosecond lasers. This design allows for cheaper analysis and preserves the sample, enabling studies of interactions and processes in substances.
SourceLomonosov Moscow State University·JournalScientific Reports·DateNov 21, 2017
The INQNET research program aims to develop scalable quantum computing infrastructure through the creation of a quantum network and investigation of fundamental challenges in quantum science. The first phase of the Fermilab quantum network teleportation experiment (FQNET) is expected to produce results by late spring.
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The Swedish government is investing SEK 1 billion in a research program to develop a superconducting quantum computer with greater computing power than current supercomputers. The goal is to create a functioning quantum computer with at least 100 qubits, enabling it to solve complex problems in fields like optimization, machine learnin...
Physicists at NIST have created a new method to link atoms' properties quickly, potentially providing precise sensing and quantum computer tools. The approach uses dipolar interaction to enable fast entanglement propagation through groups of atoms.
SourceNational Institute of Standards and Technology (NIST)·JournalPhysical Review Letters·DateNov 7, 2017
Researchers at Johannes Gutenberg University Mainz successfully demonstrated the operation of a four-qubit register comprised of atomic ions trapped in microchip traps. The achievement marks a decisive milestone for scaling up quantum computers, showcasing the potential for entangled states to be created with long-lived multipartite en...
SourceJohannes Gutenberg Universitaet Mainz·JournalPhysical Review Letters·DateNov 6, 2017
Physicists at the University of Queensland developed a new technique to reduce errors in atom measurement devices, boosting precision by exploiting quantum entanglement. This improvement enables more flexible design and operation of these quantum sensors, potentially moving experimental physics into real-world applications.
SourceUniversity of Queensland·JournalPhysical Review Letters·DateNov 6, 2017
Researchers at University of Innsbruck have successfully levitated nanomagnets using quantum physics, exhibiting stability and entanglement properties. This breakthrough defies the classic Earnshaw theorem and opens new avenues for studying exotic quantum phenomena.
SourceUniversity of Innsbruck·JournalPhysical Review Letters·DateOct 27, 2017
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Researchers have developed a new quantum simulation protocol to understand key properties of interacting quantum field theories. The protocol uses cold atoms as controllable quantum sensors to measure the generating functional, a fundamental concept in quantum field theory.
SourceSwansea University·JournalPhysical Review X·DateOct 20, 2017
Researchers propose swapping atoms to demonstrate exotic properties. The process involves swapping two identical atoms without distinguishing them, leading to questions about individuality and connection in the quantum realm. This phenomenon has philosophical implications, as it challenges traditional notions of identity and connection.
SourceUniversity of Bonn·JournalPhysical Review Letters·DateOct 17, 2017
Researchers at UNIGE have successfully demonstrated the entanglement of 16 million atoms in a crystal crossed by a single photon, confirming the theory behind future quantum networks. This breakthrough confirms that a vast number of atoms can be entangled and intertwined by a strong quantum relationship.
SourceUniversité de Genève·JournalNature Communications·DateOct 13, 2017
Researchers found that improving quantum heat engine efficiency requires reducing photons in a cavity, enabling increased quantum manipulation power and accelerating quantum information processing. The study showed that only small photon numbers yield high efficiency and output power.
SourceSpringer·JournalThe European Physical Journal D·DateOct 11, 2017
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A team of scientists has demonstrated entanglement swapping with two independent sources 12.5 km apart using a 103-km optical fiber, increasing the experimental distance from metropolitan to inter-city levels.
SourceChinese Academy of Sciences Headquarters·JournalOptica·DateOct 11, 2017
Researchers at US Army Research Laboratory have made breakthroughs understanding entanglement structure in quantum systems with long-range interactions. Entanglement enables ultra-secure communication, precise measurement, and powerful computers.
SourceU.S. Army Research Laboratory·JournalPhysical Review Letters·DateSep 27, 2017