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.
Quside, a spin-off of ICFO (Institute of Photonic Sciences) in Barcelona, Spain, has announced availability of its new chip-based quantum entropy source technology, the QN 100, for ultrafast and high-quality random number generation. The new QN […]
Rigetti has announced it has achieved entangling gate fidelities as high as 99.5% on its next-generation chip architecture. Today’s quantum computers are prone to errors, which limit the size and complexity of problems that can […]
Deploying quantum technologies in space, while complex, will be truly transformative on a global scale. The International Network in Space Quantum Technologies (INSQT) is a new project led by UK Quantum Technology Hub Sensors and […]
Physicists of the attoworld-team at Ludwig-Maximilians-Universität have uncovered what happens during the sampling of a light field. This helped them increase the sensitivity of the measurement by up to one order of magnitude.
Classiq, which provides a platform for Quantum Algorithm Design, today announced that it has raised $33 million in a Series B round, following its Series A of $10.5M in 2021. This new round brings Classiq’s […]
A new study describes previously unexpected properties in a complex quantum material known as Ta2NiSe5. Using a novel technique developed at Penn, these findings have implications for developing future quantum devices and applications. This research […]
A physicist at University of Michigan is using quantum computing and machine learning to better understand the idea that everything around us could be just a hologram, the famous so-called holographic duality. Holographic duality is a mathematical […]
Scientists at Caltech have developed an approach for quantum storage that could help pave the way for the development of large-scale optical quantum networks. The new system relies on nuclear spins oscillating collectively as a […]
npj Quantum Information, Published online: 17 February 2022; doi:10.1038/s41534-022-00526-2 Reconfigurable quantum phononic circuits via piezo-acoustomechanical interactions
Rigetti Computing Announces Commercial Availability of 80-Qubit Aspen-M System and Results of CLOPS Speed Tests.
npj Quantum Information, Published online: 16 February 2022; doi:10.1038/s41534-022-00525-3 Finite key effects in satellite quantum key distribution
npj Quantum Information, Published online: 16 February 2022; doi:10.1038/s41534-022-00523-5 Impact of charge noise on electron exchange interactions in semiconductors
npj Quantum Information, Published online: 16 February 2022; doi:10.1038/s41534-022-00527-1 Stabilizing multiple topological fermions on a quantum computer
In the race to achieve the coveted “advantage” of a quantum computer, those developing quantum algorithms are pitted against each other and against those working on classical algorithms. With each potential claim of such an […]
Physicists working at the University of Sussex have developed a monitoring and control system blueprint for quantum devices and experiments in space. The research has wider implications for operating quantum devices and carrying out experiments in inaccessible and unpredictable […]
11.02.2022 By: Andreas Trabesinger Image: The experimental chamber in which the experiments of de Neeve and colleagues [1] were performed. (Photo: ETH Zurich/D-PHYS Home group) In modern computing devices, literally billions of transistors work restlessly […]
Scientists have created the first ever 2D map of the Overhauser field in organic LEDs, shedding light on the challenges we face in designing accurate quantum-based technologies. Read More Quantum Computers News — ScienceDaily
A research team has developed a new algorithm to measure entanglement entropy, advancing the exploration of more comprehensive laws in quantum mechanics, a move closer towards actualization of application of quantum materials. Read More Quantum […]
Researchers at the University of Adelaide have taken a key step in making quantum batteries a reality. They have successfully proved the concept of superabsorption, a crucial idea underpinning quantum batteries. To prove the concept […]
Researchers at University of Cambridge have identified a two-dimensional material that could be used to store quantum information at room temperature. This two-dimensional material called hexagonal boron nitride, that can emit single photons from atomic-scale […]
npj Quantum Information, Published online: 14 February 2022; doi:10.1038/s41534-022-00529-z Quantum emulation of topological magneto-optical effects using ultracold atoms
Researchers at University of Chicago have been able to create a new kind of quantum object at will in the laboratory. They call them “domain walls”. In one of their experiments, the UChicago scientists noticed […]
In the past four years scientists have discovered metals whose crystal structure mimics that of a traditional Japanese woven bamboo pattern: kagome metals. The international research activity in this new direction of quantum materials has […]
Rigetti and Zapata Computing announced a new phase in their long-standing partnership: the companies are developing an industry-first compilation toolchain explicitly designed for hybrid quantum-classical algorithms.
Nonlocal games are extensions of Bell inequalities, aimed at demonstrating quantum advantage. These games are well suited for noisy quantum computers because they only require the preparation of a shallow circuit, followed by the measurement […]