Researchers successfully simulated Google’s 53-qubit Sycamore quantum circuit seven times faster than the original quantum computer using 1,432 GPUs and innovative tensor network algorithms, effectively refuting Google’s quantum advantage claim.
Scientists have discovered and experimentally confirmed the existence of “quadruplons,” genuine four-body quasi-particles consisting of two electrons and two holes tightly bound together in a monolayer semiconductor, which represent a fundamentally new type of matter excitation beyond previously known quasi-particles like excitons and bi-excitons.
UCL researchers have developed a groundbreaking technique using arsenic atoms in silicon that achieves a 97% success rate for single-atom placement (compared to phosphorus’s 70%), potentially solving quantum computing’s twin challenges of error rates and scalability through scanning tunneling microscopy hydrogen resist lithography.
A groundbreaking theory bridges quantum mechanics and general relativity by treating the spacetime metric as a quantum operator and introducing an entropy-based gravitational action that yields modified Einstein equations with an emergent cosmological constant, potentially explaining cosmic expansion and dark matter through a novel auxiliary “G-field.”
Harvard scientists have developed a groundbreaking photon router that creates an optical interface between light signals and superconducting microwave qubits, potentially solving a major quantum computing challenge by enabling different quantum systems to communicate efficiently without bulky wires, thus bringing distributed, fiber-optic-based quantum computers closer to reality.
Another “right-now” use case for quantum computing in financial services. Continue reading on Quantum Computing »
Chinese scientists have implemented twin-field quantum key distribution (QKD) through an 833-km optical fiber, setting a new world record in the field. The system has tolerated a channel loss beyond 140 dB. Furthermore, the optimized four-phase […]
Atom Computing, the creators of the first quantum computer made of nuclear-spin qubits from optically-trapped neutral atoms, today announced closure of a $60M Series B round. Third Point Ventures led the round, followed by Prime […]
Álvaro Gómez León (Institute of Fundamental Physics, Madrid):The topology of non-hermitian systems has recently gained a lot of attention due to its possible use in amplification, sensing or laser physics.
npj Quantum Information, Published online: 21 January 2022; doi:10.1038/s41534-021-00509-9 Rate-compatible multi-edge type low-density parity-check code ensembles for continuous-variable quantum key distribution systems
Scientists have boosted the efficiency and scalability of perovskite solar cells by replacing their electron-transport layers with a thin layer of quantum dots. Read More Quantum Computers News — ScienceDaily
By shaking an optical lattice potential, researchers have realized a discontinuous phase transition in a strongly correlated quantum gas, opening the door to quantum simulations of false vacuum decay in the early universe. Read More […]
Researchers at PSI have compared the electron distribution below the oxide layer of two semiconductors. The investigation is part of an effort to develop particularly stable quantum bits — and thus, in turn, particularly efficient […]
Markus Pflitsch, founder and CEO of Terra Quantum The landmark round, one of the largest global funding rounds in the global quantum space, underpins Terra Quantum’s pioneering market position in the development of revolutionary quantum computing applicationsThe fresh […]
npj Quantum Information, Published online: 20 January 2022; doi:10.1038/s41534-021-00501-3 Designing quantum networks using preexisting infrastructure
Researchers have achieved a key milestone toward the development of a fault-tolerant quantum computer. They were able to demonstrate a two-qubit gate fidelity of 99.5 percent — higher than the 99 percent considered to be […]
Australian researchers have proven that near error-free quantum computing is possible, paving the way to build silicon-based quantum devices compatible with current semiconductor manufacturing technology. Prof. Morello’s paper is one of three published today in Nature that […]
A precision diagnostic is emerging as a gold standard for detecting and describing problems inside quantum computing hardware. Read More Quantum Computers News — ScienceDaily
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SEEQC today announced the addition of a scientific advisory board to its leadership. This addition comes at a time when the company is unveiling a new brand identity and expanding its team internationally, including the […]
Daniel Haag (MPQ)I will define and motivate Haar-random matrix product states (RMPS)
Capgemini announced it has set up a dedicated Lab and team of Quantum Technology experts from across the globe, to develop capabilities and coordinate research facilities aimed at the advancement of Quantum Technologies and exploration of their potential. In addition to Capgemini’s work to explore Quantum Communications […]
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Lukas Wangler (MPQ)Trapped ions and electrons in solids can form crystals due to their repulsive interactions.
npj Quantum Information, Published online: 14 January 2022; doi:10.1038/s41534-021-00515-x All-fiber source and sorter for multimode correlated photons
We are pleased to announce our partnership with quGeeks, a new Job Board dedicated to Quantum Computing.
npj Quantum Information, Published online: 13 January 2022; doi:10.1038/s41534-021-00510-2 Towards practical quantum computers: transmon qubit with a lifetime approaching 0.5 milliseconds
Quantum states of light have enabled novel optical sensing schemes, e.g., for measuring distance or position, with precisions impossible to achieve with classical light sources such as lasers. The field of quantum metrology has now […]
Paris and Amsterdam, January 11, 2022 – Pasqal, a developer of neutral atom-based quantum technology, and Qu&Co, a quantum algorithm and software developer, today announced a merger to accelerate progress on achieving business advantage through quantum […]
Flavio Baccari (MPQ): I will give an informal introduction to the sampling algorithms recently introduced in arXiv:2112.08499.