Articles tagged with Qubits
A new quantum computer architecture, proposed by NIST scientist Emanuel Knill, overcomes the fragility of qubits by using a pyramid-style hierarchy and teleportation to continuously double-check accuracy. This approach enables reliable computing even if individual logic operations make errors up to 3 percent of the time.
Researchers have successfully created artificial atoms using superconducting materials, allowing for the measurement of quantum properties in two interconnected devices. This breakthrough enables the development of simple logic operations using artificial atoms, a crucial step toward building superconducting quantum computers.
Physicists at NIST have developed a method for automatically correcting data-handling errors in quantum computers, enabling potentially massive computational power. The approach exploits entanglement of atoms to create redundant data sets and correct errors, making it more practical than previous methods.
A team of physicists at Georgia Institute of Technology has successfully transferred quantum information from two different groups of atoms onto a single photon. The researchers report using atomic clouds of rubidium atoms as a matter qubit and converting the entanglement into a single photon.
Researchers at the University of Bonn have successfully built a quantum register using neutral atoms, enabling the storage and manipulation of quantum information. The achievement marks a significant milestone in the development of quantum computing, which could potentially solve complex problems beyond current computer capabilities.
Researchers at Yale University have successfully created an artificial molecule on a chip, shrinking experimental apparatus to a tiny size. The achievement improves coupling between resonator and atom by a factor of 1000, paving the way for exploring fundamental interactions of light and matter.
Researchers at Yale University have developed a miniaturized superconducting cavity that enables quantum optics experiments on a microchip. The system allows for rapid exchange of energy between photons and atoms, demonstrating the potential for faster computing with quantum qubits.
A new nanoscale device developed by University of Wisconsin-Madison researchers allows for the study of individual electrons in detail. The device enables the observation of heat dissipation's influence on single electron transport, a crucial aspect of quantum computing and communication.
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 paper proposes an experimentally realizable circuit and an efficient scheme to implement scalable quantum computing. Researchers aim to overcome two major stumbling blocks: preparing, manipulating, and measuring fragile quantum states and controlling connectivity between many qubits.
The University of Michigan researchers have successfully cooled a single atom to near absolute zero using laser cooling, a crucial step toward scaling up trapped atom computers. The proposal outlines a 'quantum charge-coupled device' architecture that could be used for large-scale quantum computing.
Scientists at IBM's Almaden Research Center performed the first demonstration of Shor's historic factoring algorithm, solving a simple version of the mathematical problem at the heart of many data-security systems. The team controlled a billion molecules in a test tube to become a seven-qubit quantum computer.