Articles tagged with Qubits
A team of scientists has developed a hybrid memory system that stores quantum information in the nucleus of an atom, solving a key problem for quantum computing. This breakthrough enables faster processing speeds from electrons and longer memory times from nuclei.
Scientists at University of Michigan and U.S. Naval Research Laboratory demonstrate a solid-state qubit that can be both 0 and 1 at the same time, enabling faster quantum computing and improved computer security. The breakthrough enables the creation of a code that would be impossible to crack with conventional computers.
Researchers at USC successfully apply Viterbi algorithm to decode entangled photons in quantum communication. This enables reliable error-free message transmission in noisy quantum channels.
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.
Researchers have developed a technique to arrange individual carbon nanotubes into circuit patterns with high accuracy. Meanwhile, superconductors can harness quantum physics to boost computer power, potentially creating more powerful qubits for quantum computers.
Researchers at Yale have made two major breakthroughs in advancing quantum computing, enabling the transfer of information between distant qubits and paving the way for more complex quantum computers. By developing a superconducting communication 'bus,' they can now store and transfer information efficiently between qubits on a chip.
Scientists at NIST have developed a new component for potential ultra-powerful quantum computers using a microfabricated aluminum cable with superconducting circuits. This 'quantum bus' can transport data between two or more qubits, enabling faster calculations and potentially solving complex mathematical problems.
Researchers at the University of Michigan have successfully established entanglement between two atoms, a key feature of quantum communication. This achievement has significant implications for the development of super-fast quantum computers and a quantum internet.
Delft researchers achieved the first 'controlled-NOT' calculation with two qubits using superconducting rings, paving the way for more complex quantum calculations. This breakthrough demonstrates a crucial step towards creating a functional quantum computer.
Researchers from NEC, JST and RIKEN have successfully demonstrated the world's first controllably coupled qubits using a new circuit technology. This achievement is vital for the realization of practical quantum computers, which are expected to surpass even today's most modern supercomputers in capabilities.
Researchers at USC Viterbi School of Engineering have developed a method to use entangled photons as part of the message stream, allowing for the use of highly efficient turbo codes. This breakthrough enables quantum computing systems to operate close to theoretical limits of efficiency.
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.
Researchers develop quantum algorithm to calculate molecular energy states with high accuracy, overcoming challenges in quantum chemistry. By using a relatively small number of qubits, they demonstrate the potential of quantum computers to solve complex problems that are currently unsolvable by classical supercomputers.
Researchers successfully entangled a photon and a single atom located in an atomic cloud, demonstrating the first time this has passed the rigorous test of Bell inequality violation. The findings are a significant step towards developing secure long-distance quantum communications.
Researchers discovered that quantum coherence in qubits spontaneously disappears, even without external influences. This process is linked to quantum mechanical spontaneous symmetry breaking, which could limit the development of quantum computers.
Physicists at NIST demonstrated a crucial step in using quantum computers to break today's most commonly used encryption codes. The team used three ions as qubits to represent 1s or 0s and identified repeating patterns in quantum information. This work paves the way for building large-scale quantum computers.
Researchers have created an 'egg carton' of light with tiny holes that can contain single atoms, a crucial step towards making quantum computing more practical. The design enables faster computing than traditional chips and has potential applications in fields like astrophysics, genetics, and materials science.
Researchers at University College London have discovered how a well-specified bath affects the qubits in a crystal, which behaves as a primitive quantum computer. The study suggests that the effect can be controlled by radio waves and temperature of the bath, paving the way for stable quantum computing.
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.