Physicists studying the strange behavior of metal alloys called heavy fermions have made a surprising discovery that could be useful in safeguarding the information stored in quantum bits, or qubits, the basic units of encoded information in quantum computers. …
Tag: quantum computers
Complex quantum teleportation achieved for the first time
Austrian and Chinese scientists have succeeded in teleporting three-dimensional quantum states for the first time. High-dimensional teleportation could play an important role in future quantum computers. …
Quantum computers to become portable
Together with the University of Innsbruck, the ETH Zurich and Interactive Fully Electrical Vehicles SRL, Infineon Austria is researching specific questions on the commercial use of quantum computers. With new innovations in design and manufacturing, the partners from universities and industry want to develop affordable components for quantum computers. …
Ions clear another hurdle toward scaled-up quantum computing
Scientists at the Joint Quantum Institute (JQI) have been steadily improving the performance of ion trap systems, a leading platform for future quantum computers. Now, a team of researchers led by JQI Fellows Norbert Linke and Christopher Monroe has performed a key experiment on five ion-based quantum bits, or qubits. They used laser pulses to simultaneously create quantum connections between different…
Newfound superconductor material could be the ‘silicon of quantum computers’
A potentially useful material for building quantum computers has been unearthed at the National Institute of Standards and Technology (NIST), whose scientists have found a superconductor that could sidestep one of the primary obstacles standing in the way of effective quantum logic circuits. …
Schrödinger’s cat with 20 qubits
Dead or alive, left-spinning or right-spinning—in the quantum world particles such as the famous analogy of Schrödinger’s cat can be all these things at the same time. An international team, including researchers from several leading American universities, together with experts from Forschungszentrum Jülich, have now succeeded in transforming 20 entangled quantum bits into such a state of superposition. The generation of…
Does Quantum Cryptography Need a Reboot?
“Despite decades of research, there’s no viable roadmap for how to scale quantum cryptography to secure real-world data and communications for the masses,” according to IEEE Spectrum. Wave723 shares their report: A handful of companies now operate or pay for access to networks secured using quantum cryptography in the United States, China, Austria, and Japan. According to a recent industry report,…
Quantum computers to clarify the connection between the quantum and classical worlds
Los Alamos National Laboratory scientists have developed a new quantum computing algorithm that offers a clearer understanding of the quantum-to-classical transition, which could help model systems on the cusp of quantum and classical worlds, such as biological proteins, and also resolve questions about how quantum mechanics applies to large-scale objects. …
Imaging of exotic quantum particles as building blocks for quantum computing
Researchers at the University of Illinois at Chicago, in collaboration with their colleagues at the University of Hamburg in Germany, have imaged an exotic quantum particle—called a Majorana fermion—that can be used as a building block for future qubits and eventually the realization of quantum computers. Their findings are reported in the journal Science Advances. …
Researchers lead breakthrough in quantum computing
The large, error-correcting quantum computers envisioned today could be decades away, yet experts are vigorously trying to come up with ways to use existing and near-term quantum processors to solve useful problems despite limitations due to errors or “noise.” …