Articles tagged with Quantum Processors
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Researchers at University of Chicago have developed a new device that captures trapped electrons and manipulates them using superconducting quantum circuits. The team successfully holds electrons in place for up to 12 hours, leveraging the unique properties of liquid helium to isolate individual electrons.
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 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 at Lomonosov Moscow State University successfully controlled ultrafast motion of electrons down to three attoseconds, breaking natural obstacles and observing quantum interference. The achievement opens a new horizon for studying ultrafast processes in physics.
Scientists at the Niels Bohr Institute have developed a photon contact that can control the transport of photons in a circuit. This breakthrough enables the creation of complex quantum photonic circuits and paves the way for the development of quantum networks based on photons.
Scientists at Penn State and University of Chicago discovered a new way to use light to draw and erase quantum-mechanical circuits on topological insulators, allowing for non-invasive and faster experimentation. The technique uses ultraviolet and bright red light to manipulate the electronic properties of these materials.
Oriol Romero-Isart receives Euro 4,000 award for seminal contributions to quantum physics topics including degenerate gases and nanooptics.
Researchers have developed an optical chip that can process photons in an infinite number of ways, a major step forward in creating a quantum computer. This breakthrough brings together existing quantum experiments and paves the way for new protocols, making it easier to conduct research and discover new science.
Scientists have developed a new protocol to estimate unknown optical processes with enhanced precision using entangled photons, promising better sensors for medical research and more powerful quantum computers. The technique uses the unique properties of quantum mechanics to surpass current limitations in sensing and measurement.
Quantum physicists at the University of California - Santa Barbara have developed a quantum circuitry system that self-checks for errors and suppresses them, preserving qubits' state(s) and imbuing the system with reliability. The system uses the surface code scheme to detect errors based on parity information.
Physicist Kater Murch's experiment combines information about a quantum system's evolution before and after a target time to narrow the odds of correctly guessing its state. The 'hindsight' prediction is 90% accurate, suggesting that time runs both backward and forward in the quantum world.
Researchers have created high-value, compact nanoscale resistors using thin-film chromium oxide, enabling faster development of quantum devices for computing and fundamental physics research. The new resistors can be tuned by controlling oxygen content, making them compatible with quantum phase-slip circuit requirements.
Physicists at UC Berkeley have demonstrated a way to follow the 'life history' of a quantum system, allowing for continuous error correction. This technology could enable steering quantum evolution and optimizing chemical reactions.
Theorists propose using a bottom-up approach to create hybrid quantum devices by placing superconducting regions within silicon crystals. This could combine the benefits of both silicon spin qubits and superconducting circuits, enabling more robust qubit designs.
A new study from the University of Waterloo's Institute for Quantum Computing reveals that contextuality is a necessary resource for achieving the advantages of quantum computation. Researchers have confirmed theoretically that contextuality is required for building a universal quantum computer.
Researchers at USC have validated the quantum nature of D-Wave processors using elaborate tests on its functional qubits. The results consistently agree with quantum models but contradict classical models, indicating the presence of quantum effects.
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.
Researchers from ETH Zürich and University of Calgary demonstrated the sharing of light between two artificial atoms in a one-dimensional system. This effect has significant implications for future applications in advanced quantum devices.
Physicists at ETH Zurich have successfully teleported information across a distance of six millimeters using a solid state system. This achievement demonstrates the potential for quantum communication and may lead to faster and more efficient quantum computing in the future.
Physicists have built a theoretical construct of twisted atom beams, which can have potential applications in quantum communication and atomic processes. These beams were created by solving the non-relativistic Schrödinger equation for atoms driven by a laser field.
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.
Researchers at NIST have reported the first observation of the spin Hall effect in a Bose-Einstein condensate, offering new insight into the quantum mechanical world. The phenomenon demonstrates the potential for ultracold atoms to be used as circuit components, paving the way for applications in 'atomtronics'.
Researchers at the University of Strathclyde and Imperial College London have developed a portable device for producing ultracold atoms for quantum technology. The device uses micro-fabricated diffraction gratings to cool and trap large numbers of atoms, enabling accurate measurements in various fields.
Researchers at ETH Zurich have developed a new control method for quantum systems, enabling precise steering through Hilbert spaces. This breakthrough has significant implications for the development of practical quantum computers.
Researchers at the University of Bristol successfully implemented a full quantum circuit to calculate unknown eigenvalues using a quantum algorithm without prior knowledge. This achievement marks an important step towards practical quantum computing, enabling applications in quantum simulations and metrology.
Researchers at University of Cambridge create hundreds of tiny twisters on chip using quantum mechanics, controlling electron movement and light interaction to form 'polariton'. This enables precise measurement of motion and surface irregularities with sensitivity.
A team from the University of Bristol's Centre for Quantum Photonics has developed a technique to recycle particles in a quantum computer, reducing physical resources required for factoring. This breakthrough enables more efficient calculations, paving the way for larger implementations of quantum algorithms.
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 UCSB have successfully factored a small composite number using a quantum processor. The achievement is significant as it demonstrates a milestone on the road to building a quantum computer capable of factoring larger numbers with significant implications for cryptography and cybersecurity.
Researchers have developed a multi-purpose photonic chip that generates, manipulates, and measures entanglement and mixture on a tiny silica chip. This device can perform various experiments in a straightforward way using a single reconfigurable chip.
Researchers at Cambridge University have developed a technique to transfer quantum information by controlling individual electrons in Gallium Arsenide. This innovation has the potential to enable faster and more efficient processing in quantum computers, addressing complex problems beyond classical computers' capabilities.
Scientists at the University of Bristol develop a new technique to dramatically simplify controlled operations in quantum computing. This breakthrough reduces complexity in quantum circuits, enabling more sophisticated algorithms and applications in precision measurement, simulation, and beyond.
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.
Researchers at NIST have developed a technique to calm the vibrations of a microscopic aluminum drum to the quantum ground state, allowing for longer storage of individual packets of energy. The drum's motion is slowed by applying microwave light, enabling applications in quantum computing and testing of quantum theory.
Researchers have successfully demonstrated a quantum logic gate acting on four particles of light, enabling new approaches to quantum technologies. The device has the potential to improve secure communication and precision measurement, paving the way for more efficient computers and innovative applications.
Scientists at NIST and UM create a toroidal Bose-Einstein condensate with ultracold sodium atoms, exhibiting superfluidity and persistent flow. The circuit includes a tunable weak link barrier that controls the atom current to specific values.
Physicists at NIST have demonstrated an electromechanical circuit that processes information and controls motion at the quantum scale. The device uses a micro drum to transmit mechanical vibrations, achieving strong interactions between microwave light and the drum, paving the way for quantum applications.
Researchers from the University of Bristol demonstrated the quantum operation of new components that will enable compact circuits for future photonic quantum computers. These integrated photonic circuits are compact, stable, and low-noise, paving the way for mass production of chips for quantum computers.
Researchers at UC Santa Barbara and in China and Japan created NOON states by generating and storing microwave photons in two physically-separated cavities. The team demonstrated the ability to manipulate these states, showing that probing one cavity affects the other.
Scientists created a 70-nanometer narrow channel to analyze photogenerated electrons with high precision. They demonstrated that photogenerated electrons can flow several micrometers before colliding with crystalline atoms, revealing the influence of circuit geometry on electron paths.
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 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 at the University of Bristol have successfully implemented a high-fidelity fibre controlled-NOT gate using single photons in optical fibres. This achievement paves the way for more sophisticated quantum networks with increased range and potential applications in computing, communication, and advanced measurement.
Physicists at University of Bristol and Imperial College London develop new method using 'spooky action' to identify quantum black boxes, overcoming fundamental limitations. This breakthrough has significant implications for future quantum computing and information science.
Researchers Enrique Solano and colleagues have made significant progress in understanding the behavior of qubits. They found that certain quantum leaps are prohibited when a qubit's symmetry is broken, and vice versa.
A team of physicists and engineers at the University of Bristol demonstrated control of single particles of light on a silicon chip, a crucial step towards a super-powerful quantum computer. The controlled-NOT gate, the building block of a quantum computer, was achieved with high-fidelity operation.
Researchers at Ames Laboratory and Microsoft Station Q studied nitrogen-vacancy centers in diamond to understand decoherence, a process destroying quantum coherence. They discovered that environmental interference can be regulated by applying a moderate magnetic field, gaining insight into the decoherence process.
Researchers have discovered a way to manipulate individual carbon-13 atoms in diamond to create stable quantum mechanical memory and a small quantum processor operating at room temperature. This breakthrough brings solid-state materials into the realm of quantum computing, revolutionizing scientists' approach to the technology.
Researchers at NRC Canada use laser pulses to control chemical reactions by tilting molecular landscapes. This method has implications for quantum information and optical microscopy of live cells.
Researchers have designed a new quantum processor core that keeps qubits active all the time, enabling faster calculations and making quantum computers more efficient. This breakthrough could lead to advancements in fields like molecular biology, biophysics, and materials science.
A team of international researchers has discovered a new method to link qubit rings, which could lead to the creation of the world's most powerful computers. The breakthrough opens up the possibility of creating quantum gates, a more advanced version of processors found in modern computers.
Researchers have developed a silicon-chip qubit that can perform quantum computations without leaking information due to decoherence. This achievement is based on a blueprint from 1998 and could lead to the creation of large arrays of qubits for practical quantum processing.
The National Science Foundation has established FOCUS, a Physics Frontier Center at the University of Michigan, to advance coherent control in quantum, ultrafast, and high-field physics. The center will focus on three major research components: High Field Control, Ultrafast Control, and Quantum Control.