Terra Quantum Announces Successful Demonstration of New Type of Superconductivity
Terra Quantum, a global leader in quantum technology, announced on October 20 the successful demonstration of a new type of superconductivity – a significant breakthrough in physics and superconducting technology. “Type III” superconductors feature superconducting islands separated by non-superconducting regions, resulting in unique magnetic and electrical properties.
The research, “Topological gauge theory of vortices in type-III superconductors,” was published in Physical Review B, and presents a novel theory describing the new class of superconductors. The paper was co-authored by Terra Quantum’s Chief Scientific Officer Valerii Vinokur, Cristina Diamantini at the University of Peruglia, Italy, and Carlo Trugenberger at SwissScientific.
“This work builds upon our own research as well as the work from some of greatest minds of the past century,” said Markus Pflitsch, CEO of Terra Quantum. “As we develop useful applications for quantum computing, we’re excited to see how our work in superconducting technology will improve quantum technologies and the electronics industry altogether.”
An absence of the normal cores in novel kind of vortices in type III superconductors open an opportunity to move without energy dissipation. In usual superconductors, the motion of vortices with normal cores results in energy losses, which implies the need to introduce special vortex pinning mechanisms to ensure the practical use of superconductivity. Type III superconductivity provides dissipationless behavior upon the applied currents and electromagnetic fields, opening fantastic opportunities for the practical use of type III superconductivity for superconducting devices.
QANplatform joins Linux Foundation and its Post-Quantum Cryptography Alliance
The Linux Foundation is a nonprofit organization dedicated to fostering innovation through open-source technologies. It hosts some of the most impactful technology projects globally (e.g.: Linux, Kubernetes, Node.js.), supporting the development of secure, scalable, and reliable software. The Foundation’s community consists of leading enterprises and developers who work collaboratively to advance open-source solutions.
One of the Foundation’s key initiatives, the Post-Quantum Cryptography Alliance (PQCA), focuses on creating cryptographic algorithms resilient to the threats posed by quantum computing. As quantum computers become more advanced, they will be capable of breaking current encryption methods, posing significant risks to industries and governments alike. The PQCA aims to develop and promote cryptographic standards that can withstand these future threats.
China Boosts Quantum Computer Production with Self-Developed Chips Amid US Sanctions
Origin Quantum is boosting its operations amid China’s nationwide drive towards technological self-sufficiency. That push has become more urgent as the US has ramped up efforts to thwart China’s progress by curbing its access to advanced American technologies with trade controls. Origin Quantum was among 22 quantum computing research institutions in China that were added to a US trade blacklist in May this year.
Origin Quantum – a research firm based in Hefei, capital of eastern Anhui province – has kept its 72-qubit quantum computing chip running in “stable operation” on its Origin Wukong superconducting quantum computer for nine months. The company is also expanding its superconducting quantum computer assembly line.
Countries that already own quantum computers, including the US, Japan and Canada, have shown a high level of interest in Origin Wukong, with American users accessing the machine far more frequently than those from other countries, the company told Chinese media in May.
New Single Photon Detector on Silicon Photonics Platform Charts Path for Highly Integrated Room Temperature Quantum Computer
Currently, large-scale photonic quantum computing (PQC) systems typically consist of three main building blocks: (1) quantum sources that generate single photons, (2) quantum circuits that manipulate single photons, and (3) quantum detectors that measure single photons. Existing PQC architectures rely on superconducting nanowire single-photon detectors (SNSPDs) based on superconductors such as niobium nitride (NbN) operated at a temperature less than 4 Kelvin. Such a cryogenic cooling requirement not only consumes a huge amount of power, it also makes testing systems slow and expensive, significantly limiting wider use outside of specialized facilities.
To bring PQC systems into a revolutionary room-temperature (RT) operation paradigm, this work has proposed replacing the conventional SNSPDs with a newly designed waveguide-based germanium-silicon (GeSi) single-photon avalanche diode (SPAD. By combining on-chip waveguided spontaneous four-wave mixing sources, waveguided field-programmable interferometer mesh circuits, and a waveguided spatially-multiplexed array of photon-number-resolving GeSi SPADs detectors with a proper gating window, a highly integrated electronic-photonic system capable of being operated outside cryogenic environment can be realized.
