Articles tagged with Qubits
Scientists create optical nanofibers to trap atoms in a fragile state, addressing the challenge of decoherence in quantum computers. The new method improves transmission loss by two orders of magnitude, paving the way for hybrid quantum processors.
Physicists in Innsbruck developed a new quantum error-correcting method and tested it experimentally. The topological code arranges qubits on a two-dimensional lattice to detect and correct general errors. This approach could lead to a robust quantum computer performing any number of operations without being impeded by errors.
A new 5-qubit array demonstrates improved reliability in quantum computing, a crucial step towards building a functional quantum computer. The team's findings are based on theoretical work by Austin Fowler and the surface code architecture, which provides a way to control qubits properly.
Scientists at Yale have confirmed a long-held theoretical prediction in physics, improving the energy storage time of a quantum switch. The breakthrough opens new frontiers for quantum information processing and measurement systems.
Researchers confirm D-Wave uses quantum effects but are critical of its classification as a computer. The system solves optimization problems but is slower than traditional computers for most tests.
A team of scientists from USC developed a strategy to link quantum bits together into voting blocks, significantly boosting accuracy when the D-Wave quantum processor is led astray by noise. This method results in at least a five-fold increase in probability of reaching the correct answer on large problems.
Computer scientist Yi-Kai Liu has devised a method to create secure, one-shot memory units using quantum physics. The conjugate coding approach stores data in qubits, exploiting the lack of entanglement in certain physical systems to ensure security.
Researchers at NIST and the University of Copenhagen created an experiment where ions were linked to the outside world, resulting in a stable entangled state. This method could lead to new architectures for quantum computing that can tolerate noise and errors.
Researchers have achieved a world record by storing a fragile quantum state at room temperature for 39 minutes, overcoming a key barrier towards building ultrafast quantum computers. This breakthrough could lead to long-term coherent information storage and potential applications in ultra-secure authentication devices.
A team has achieved a world record 39 minutes for a fragile quantum state to survive at room temperature, paving the way for ultrafast quantum computers. The discovery demonstrates robust and long-lived qubits that could enable efficient quantum calculations.
Researchers have demonstrated a method to create polarization order from random fluctuations, enabling enhanced sensitivity in nanometer-scale magnetic resonance imaging (MRI) and potentially solid-state quantum computers. This achievement has the potential to revolutionize nano- and atomic-scale imaging techniques.
The USC-Lockheed Martin Quantum Computing Center has successfully demonstrated the functionality of a large-scale quantum optimization processor, with 128 qubits. The team verified that the device operates as a quantum processor, using quantum mechanics to solve optimization calculations.
A team of researchers at the University of New South Wales has proposed a new way to distinguish between quantum bits placed only a few nanometres apart, resolving two key technical challenges. The method involves using individual phosphorus atoms in silicon chips, allowing for precise control and operation of qubits.
Scientists at UC Santa Barbara have successfully manipulated a quantum bit using laser light, enabling more unified and versatile control than conventional methods. This breakthrough opens up the possibility of exploring new solid-state quantum systems and potentially leading to the creation of more efficient quantum computers.
Linköping University researchers have successfully initialized and read nuclear spins at room temperature, a crucial step towards building a quantum computer. The breakthrough uses dynamic nuclear polarisation to control the polarisation of nuclear spins, enabling the creation of a flow of free electrons with a given spin.
A team of Australian engineers at the University of New South Wales has demonstrated a functional quantum bit based on the nucleus of a single atom in silicon. The device operates with high accuracy and could revolutionize data processing in ultra-powerful quantum computers.
Researchers at Cambridge University have successfully generated high-quality photons identical to lasers from solid-state devices, a major breakthrough towards quantum networking. This achievement brings us closer to realizing a quantum internet, where distributed networks can share highly coherent and programmable photonic interconnects.
Recent advances enable control of individual atoms used in quantum information processing, paving the way for creation of powerful computers and highly sensitive detectors. Researchers explore ways to transmit quantum information over long distances and scale up the number of qubits.
Researchers explore ion traps as a promising architecture for constructing a quantum computer, leveraging qubits' coherence time and protection from ambient disturbances. The development of micro-fabricated devices and cryogenic cooling techniques aims to push the limits of pressure and storage capacity.
Scientists develop a method to preserve quantum bits (qubits) for longer periods, using hole spins instead of electron spins. This breakthrough brings the researchers closer to creating the first viable high-speed quantum computer.
Researchers at the University of Waterloo's Institute for Quantum Computing have proposed a new model for universal computation using multi-particle quantum walks, which could lead to significant quantum speedup and pave the way for scalable future experiments. The model has potential for natural realization in various systems.
Aalto University researchers have made a breakthrough in connecting a superconducting qubit with a micrometer-sized drum head, enabling the transfer of information between the two. This achievement opens up new possibilities for creating exotic mechanical quantum states, such as simultaneous vibration and non-vibration.
Scientists have found elusive Dirac electrons in a unique material, paving the way for faster and more secure quantum computing. The discovery uses superconducting properties to create a new kind of qubit, potentially overcoming local noise problems in quantum computers.
Researchers have successfully hybridized electronic and nuclear spin qubits using bismuth, enabling easier control over these complex systems. This breakthrough brings us closer to creating practical quantum computing capable of solving complex problems.
Researchers successfully excite a spin qubit using a resonant cavity, addressing challenges of quantum processing and decoherence. This breakthrough enables the transportation of quantum information over 'bus' conduits, similar to digital information in conventional computers.
Researchers at KIT have developed a method to control atomic tunneling frequencies in solids, using Josephson junctions. The technique allows for the direct measurement and manipulation of individual quantum systems, opening new possibilities for nanoelectronic components and materials science research.
Qubits can successfully exist in topological superconductor materials despite impurities and strong interactions. Majorana particles provide coherence-protection programs for qubits.
Researchers at NIST have accelerated beryllium ions to 100 miles per hour and controlled their deceleration, demonstrating precision control of fast acceleration and sudden stops. This breakthrough enables faster transport of ions, a crucial step in quantum computing, reducing processing overhead and improving overall performance.
Researchers have discovered a way to manipulate and measure quantum processes in solid-state systems using highly purified silicon. This breakthrough could enable the creation of practical quantum computers, which would revolutionize computing capabilities.
Scientists from the University of Cambridge and Toshiba Research Europe Ltd. developed an all-semiconductor quantum logic gate, a controlled-NOT (CNOT) gate, by coaxing nanodots to emit single photons of light on demand. This breakthrough brings researchers closer to creating powerful quantum computers.
The NIST simulator, built with 350 beryllium ions, has passed benchmarking tests and can study complex problems in material science that conventional computers cannot model. Scientists are now poised to explore high-temperature superconductors using the simulator's controlled quantum interactions.
Researchers at Ames Laboratory overcome major hurdle in quantum information processing by decoupling individual qubits from their environment. This breakthrough enables robust quantum computation with solid-state devices, promising faster and more precise processing than classical computers.
Researchers at USC and international partners successfully built a quantum computer inside a diamond, showcasing solid-state computing's potential. The device protects against decoherence, a major obstacle to quantum systems, by utilizing microwave pulses to stabilize electron spin rotation.
A research team has generated flying 'qubits' that can define more than two states, potentially increasing computational power. They used semiconductors to create quantum bits with clear states suitable for encoding information.
Researchers have demonstrated a new method of quantum computation that preserves data privacy, enabling perfectly secure cloud computing. The 'blind' approach uses photons to encode data, allowing users to outsource their computations to remote servers without compromising their data.
Researchers at Rice University have created a tiny 'electron superhighway' that could be useful for building a quantum computer. The device, which acts as an electron superhighway, is one of the building blocks needed to create quantum particles that store and manipulate data.
Researchers at the University of Innsbruck have successfully created a digital quantum simulator that can simulate any physical system efficiently. The simulator uses trapped ions to manipulate and encode states, allowing for the study of phenomena such as Zitterbewegung, which had never been observed directly in nature before.
Researchers developed a quantum computing system that resists 'quantum bug' decoherence, allowing qubits to last up to 500 microseconds. By using high magnetic fields and molecular magnets, they suppressed decoherence and increased signal detection in qubits.
Physicist Olivier Pfister and his team create 60 measurable Qmodes, a multilevel variant of entangled qubits, in a major step towards building a quantum computer. This achievement has significant implications for quantum computing, potentially revolutionizing fields such as data encryption and complex system simulations.
Austrian researchers have successfully implemented an algorithm for error correction in a quantum processor, enabling repetitive corrections. This achievement is a significant milestone towards developing practical quantum computers.
Dutch researchers have successfully controlled qubits using electrical fields instead of magnetic ones, paving the way for a future super-fast quantum computer. They also embedded these qubits into semiconductor nanowires, which are ideal for quantum information processing.
Researchers have developed a micromirror-based beam steering system that can precisely control individual atoms using tiny laser pulses. This technology has the potential to enable more efficient and accurate quantum computing applications.
Researchers have successfully fabricated a hybrid system using nano-diamonds and photonic crystals, paving the way for multi-qubit systems on a single chip. This achievement brings the dream of a quantum computer closer to reality, with potential applications in various fields of science and engineering.
Researchers have discovered a way to correct for errors in quantum computers, allowing them to work with a quarter of faulty or missing qubits. The findings bring scientists one step closer to designing and building real-life quantum computing systems that could revolutionize fields like drug design and code-breaking.
A Yale team has achieved the entanglement of three solid-state qubits for the first time, paving the way for quantum error correction and future quantum computing. The accomplishment builds on their previous development of a rudimentary solid-state quantum processor.
A team of Yale physicists has successfully cooled molecules using lasers, bringing scientists closer to individual molecule-based qubits. This achievement promises new applications in quantum computing, chemistry, and particle physics, offering a promising breakthrough in the field.
Researchers achieved quantum entanglement between photons and solid-state materials, enabling communication over long distances. This breakthrough is crucial for developing quantum networks for secure communication and distributed computing.
Researchers at NIST have developed a new type of control device that can tune interactions between quantum bits (qubits) and quantum buses, potentially speeding up the development of practical quantum computers. The 'dimmer switch' enables flexible control over interactions in intricate networks.
Physicists at the University of Maryland have developed a novel approach to manipulate quantum bits using an optical frequency comb. The technique allows for the creation of coherent pairs of frequencies, reducing the need for physically adjusting components and increasing the versatility of qubit manipulation.
Jason Petta's discovery enables control of single electrons, achieving rapid manipulation without disturbing surrounding trillions. This breakthrough paves the way for future high-capacity quantum computers.
Researchers developed a technique to triple the number of events in reading qubits, strengthening the signal and enabling more efficient quantum data storage. This approach uses the spin of Nitrogen nuclei to add steps to the process, potentially paving the way for practical quantum computers at room temperature.
Researchers have developed a new method to delicately comb out entanglements among qubits while preserving the encoded information. This work provides a primitive model for a quantum World Wide Web, where individual users form ebits with quantum search engines and send queries via quantum teleportation.
Physicists at NIST demonstrate the first universal programmable quantum information processor using two qubits, capable of running any program allowed by quantum mechanics. The processor stores binary information in beryllium ions and can perform 160 different processing routines, making it 'universal'.
Physicists at NIST demonstrate sustained, reliable information processing operations on ions, overcoming hurdles in scaling up ion-trapping technology. They successfully performed a combined sequence of five quantum logic operations and ten transport operations while maintaining qubit data integrity.
Researchers have created a way to manipulate single qubits without affecting neighboring information, enabling the development of more reliable quantum computers. The new approach uses polarized light to create effective magnetic fields, simplifying the process of addressing individual qubits.
Researchers at Yale University have successfully created a rudimentary solid-state quantum processor, performing simple algorithms like a search and demonstrating quantum information processing with a solid-state device for the first time. The team's achievement marks a significant step towards building a practical quantum computer.
Researchers create tiny NEMS resonator and superconducting qubit to probe quantum behavior in ordinary objects. The experiment enables measurements of discrete energy levels predicted by quantum mechanics.
Researchers at NIST have demonstrated a technique for suppressing errors in quantum computers using an array of ultracold beryllium ions. The new method counteracts random errors caused by stray electric or magnetic fields, reducing error rates up to 100 times more than comparable techniques.
Researchers at Stanford University have successfully flipped the spin of an electron and measured its new position, a key step towards faster quantum computing. The experiment achieved this in about 100 times less time than previous techniques, using ultrafast lasers.
Researchers at Harvard University propose that quantum computers could simulate chemical reactions with improved accuracy, reducing computational resources required. This breakthrough has significant potential for applications in drug design, materials science, and other fields.