Articles tagged with Quantum Computing
Researchers demonstrate fast and scalable holonomic quantum computation using Nitrogen-vacancy center electron spins in diamond, enabling high-fidelity operations with all-optical control. This work represents the first such achievement in solid-state quantum systems.
Researchers have developed a device using graphene that could provide conclusive evidence for the existence of non-Abelian anyons, a key component of topological quantum computing. The device achieves extremely low disorder and tunability, allowing for the study of these particles in a controlled environment.
Researchers at the National University of Singapore have developed a super-resolution imaging technique that doubles the odds of successful photon interaction with atoms. This innovation has significant implications for quantum computing and metrology, as it enables stronger interactions between photons and atoms.
Researchers developed a method to extract Higgs boson signal from noise data using quantum-compatible machine learning techniques, outperforming standard counterparts even with small datasets. The new approach is expected to be useful for problems beyond high-energy physics.
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.
Physicists at JILA have confirmed the leading results on electron roundness using a unique spinning molecule technique, measuring its symmetry to provide new insights into fundamental physics and potential fossils of ancient asymmetry. The method offers future potential for more sensitive searches and tests of natural constants.
Quantum computers threaten to destroy current internet security methods as they can break RSA and ECC systems in days or hours. Researchers like Tanja Lange are working on alternative systems, including a $3.9 million EU-funded research consortium.
Researchers create non-invasive ESR imaging technique using quantum probes to detect and image electronic spins with sub-cellular resolution. This breakthrough provides new insights into the role of transition metal ions in biology and disease, offering a promising tool for probing human biochemistry.
Researchers at SISSA shed light on the microscopic origin of thermodynamics by showing that isolated systems exhibit increasing entropy due to entanglement with the rest of the system. This resolves the paradox between quantum mechanics and thermodynamics, providing new insights into the behavior of extended quantum systems.
Researchers have performed a quantum-mechanical simulation of an ultracold chemical reaction, revealing the underlying chaotic dynamics of the system. The study's findings have important implications for controlled chemistry experiments and technological applications in quantum computing and sensing.
NIST physicists have solved the puzzle of controlling molecular ions using quantum logic, a technique that also drives an experimental atomic clock. The new method achieves effective control of molecules as laser cooling and other techniques can control atoms.
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.
A team led by Professor Lloyd Hollenberg imaged electric currents in graphene using a diamond-based quantum sensor. The technique reveals microscopic behavior of current in quantum computing devices and 2D materials, enabling improved reliability and performance.
Researchers create novel two-dimensional quantum materials with breakthrough electrical and magnetic attributes, enabling faster and more powerful computers. The materials, which push the speed of electronic signals to nearly the speed of light, have potential applications in next-generation quantum computers.
Researchers at Harvard University created a time crystal, a periodic arrangement of atoms across time, using nitrogen-vacancy centers in diamond. The discovery offers insights into non-equilibrium quantum systems and may lead to new applications in precision measurement.
A team of researchers has devised a new way to implement large-scale interferometers that can dramatically miniaturize optical processing circuitry. By leveraging recent breakthroughs in quantum information, the 'measurement-based linear optics' technique harnesses existing compact methods for generating large-scale cluster states.
Osaka University researchers have successfully detected multiple spin states of a single quantum dot in real time, opening the door to more efficient quantum computing. The team used a quantum point contact charge sensor to distinguish between singlet and triplet spin states, enabling the detection of three two-electron spin states.
A new paper by Nathan Hamlin explains a code that could thwart hackers armed with next generation quantum computers. The Generalized Knapsack Code uses alternative number representations to block cyberattacks, providing a viable security method for defending against quantum computing hacks.
A team of scientists at the University of Alberta has successfully applied atomic force microscopy to pattern and image electronic circuits at the atomic level. This breakthrough could lead to the development of ultra-fast and ultra-low-power silicon-based circuits, potentially revolutionizing the technology industry.
Giuseppe Carleo and Matthias Troyer have found a way to overcome the mathematical complexity of many-particle systems using an artificial neural network. The researchers used reinforcement learning to identify important parameters in chaotic systems, enabling calculations with simplified equations for larger systems.
Physicists at University of Bonn create method to quickly and precisely sort large numbers of atoms, pushing development of future quantum computers forward. The technique allows atoms to interact with each other in targeted manner to exploit quantum-mechanical effects for calculations.
Scientists have experimentally realized a stable exotic quantum state that resists mixing due to disorder, defying predictions of conventional quantum mechanics. The discovery could have implications for the development of robust quantum computers.
Scientists at the University of Sussex have invented a new method to build large-scale quantum computers using voltages on microchips, rather than aligning laser beams. This breakthrough enables the construction of universal quantum computers with potentially revolutionary applications in fields like materials science and medicine.
A team at HZB and Univ. of Freiburg has cooled 10 million ions to 7.4 K using a novel method, allowing for cryogenic X-ray spectroscopy and studying magnetism and ground states of molecular ions. This achievement paves the way for developing new materials for energy-efficient information technologies.
Researchers develop atomic-scale manufacturing technology, creating ultra-efficient general-purpose computers and quantum computers that consume significantly less power. The discovery has the potential to revolutionize the digital economy and lead to a more sustainable future.
Researchers from the Chinese Academy of Sciences have fabricated and manipulated Majorana zero modes (MZMs) in an optical simulator, supporting non-Abelian statistics. The study provides a novel platform to investigate MZM properties and topological quantum computation.
Researchers from Sandia and Harvard Universities have successfully embedded silicon atoms in a diamond matrix to create the first quantum bridge. This breakthrough enables the connection of multiple small quantum computers, potentially revolutionizing quantum sensing and information distribution.
Researchers at UCLA have found that ions subjected to buffer gas cooling never truly reach the same temperature as the surrounding gas, defying classical thermodynamic principles. The study reveals multiple final temperatures and highlights the need for nuanced understanding of the buffer-gas cooling process.
Researchers created bowtie-shaped silver nanoparticles to study quantum phenomena, enabling strong coupling between photons and single quantum systems. The ability to control this coupling could lead to the development of more powerful computing and encryption devices.
Researchers at Oak Ridge National Laboratory used neutron scattering to uncover magnetic excitations in a rare-earth based intermetallic compound. The study reveals exotic magnetic properties, challenging conventional expectations of magnetic behavior in materials.
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.
Researchers demonstrate how state-of-the-art quantum simulations with trapped ions can be used to solve complex problems like number-partitioning. By applying a strategy known as quantum annealing, they show a faster solution than other methods.
The University of Waterloo's IQC developed software to assess QKD protocol security, achieving perfect agreement with previous results and enabling exploration of new protocols. The tool enables users to analyze any protocol in seconds, a significant improvement over months-long efforts.
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 develop a new approach to coupling Rydberg atoms to surfaces, reducing electric fields and enabling hybrid quantum systems. The findings show promise for the second quantum revolution in engineering quantum matter with arbitrary precision.
A research team at the University of Sydney has developed a major breakthrough in generating single photons, enabling the creation of secure cyber security systems. This innovation resolves a key issue holding back password exchange and can be scaled up to generate single photons with 100% probability.
Researchers at PTB have demonstrated non-destructive state detection technique for molecular ions, enabling novel spectroscopy methods with applications in chemistry and fundamental physics. The technique enables direct observation of quantum jumps in isolated molecules.
Researchers have developed a new quantum approach to analyze connections in complex networks, such as brain wiring and the global internet, using topological systems. This method can exponentially speed up calculations compared to conventional computers.
A working quantum computer system is expected to be developed by 2020, as predicted by Professor O'Brien of the University of Bristol. This will lead to breakthroughs in artificial intelligence, pharmaceutical discovery, and cyber security, disrupting traditional businesses and challenging current computing technologies.
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.
Physicists from France and Russia have discovered magnetic disturbances resembling little oscillating stars in a 2D superconductor layer. These 'nanostars' are caused by a single magnetic atom and are more sustainable than previous observations, bringing us closer to developing quantum computers.
Researchers have developed an upgrade to the Internet's core encryption protocol, making it resistant to future-proofing by powerful quantum computers. The new protocol uses a mathematical technique called 'ring learning with errors problem' to protect information.
Researchers have successfully implemented superposition of quantum gates, allowing for increased efficiency in quantum computations. This breakthrough could pave the way for faster quantum computers.
Scientists have identified a way to manipulate nuclei using electrons' magnetic moments, enabling the transfer of quantum information between particles. The discovery could lead to more stable systems for quantum computing.
Physicists have successfully frozen single charged atoms to within a millionth of absolute zero using microwave radiation, paving the way for simplified construction of quantum technology devices. This technique will enable the creation of powerful quantum sensors, ultra-fast quantum computers, and ultra-stable quantum clocks.
Scientists have created a hybrid state of being both 'alive' and 'dead' by combining Schrödinger's cat with squeezed quantum states, enabling more stable quantum computing and precise measurement capabilities.
Researchers have developed a new method for secure data transmission utilizing offline repositories and quantum information to overcome quantum computing threats. The approach provides robust authentication and authorship uniqueness, paving the way for potential applications in untraceable transactions.
The European PQCRYPTO consortium is developing technology to resist quantum computer attacks, targeting small devices and cloud storage for the next three years. Post-quantum cryptography could protect sensitive data like health records or top-secret documents with confidentiality requirements over 10 years.
A Spanish-led team has created an electronic device to detect individual electrons' charge, enabling future quantum computers to read information stored in single electron spin. The device, called a 'gate sensor', can detect electrical charge in less than one nanosecond.
Researchers from the University of Bonn and Cambridge successfully linked two different quantum systems, quantum dots and ions, to work together as a team. This hybrid system combines the strengths of both components, enabling faster calculations and improved memory storage.
Researchers have successfully controlled quantum states in a silicon wafer, achieving a record-breaking quantum on/off switching time of about 1 millionth of a millionth of a second. This breakthrough could lead to the creation of fast quantum silicon chips and ultra-sensitive bio-medical sensors.
A new analysis found that highly connected databases don't always support fastest quantum computing, with low connectivity yielding fast search in some cases. Researchers used the properties of superposition to model a quantum particle's movement through a database, demonstrating the unexpected influence of data structure on search speed.
Physicists use high-resolution spectroscopy to study and control matter, enabling precise control over atomic transitions and revealing hidden information about atom structure. The technique has applications in quantum computing, where it could offer significant boosts in computing power and improve computer security.
Researchers at City College of New York have discovered a new type of quantum particle that combines light and matter properties. This breakthrough could lead to the development of devices that utilize both light and matter, potentially revolutionizing computing and communication technologies.
Researchers at TUM develop a method to extract optically stored information from nitrogen-vacancy centers in nanodiamonds electronically. The technique uses a direct transfer of energy to a neighboring graphene layer, enabling picosecond electronic detection.
The UK has unveiled a £120 million national network of Quantum Technology Hubs, exploring the properties of quantum mechanics and harnessing them for technology. The hubs will deliver transformative impacts in key areas such as quantum metrology and sensors; quantum simulators; quantum computers and quantum secure communications.
Researchers have found evidence to confirm theoretical predictions for topological insulator conduction, leading to potential advancements in spintronics and quantum computing. The materials are insulators inside but conduct electricity via their surface.
Researchers at the University of Sydney have successfully applied control engineering principles from aerospace to protect fragile quantum systems from environmental noise. This breakthrough enables the development of useful technologies in fields such as computation, communication, and specialized sensors.
Researchers have discovered a new way to control electron spin in an insulating material, paving the way for more efficient spintronics devices. This breakthrough could lead to the development of spin-polarized materials and directly observe elusive Majorana fermions.
Quantum computing enables robots to learn and adapt faster, with a significant speedup in response times. This breakthrough has implications for machine learning, climate modeling, and internet search engines, leading towards a more ambitious objective of creating intelligent and creative robots.