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.
“Quantum Computers” are the supposed ‘computers of the future’. Capable of out-calculating even the fastest current systems, this bleeding… Continue reading on Quantum Computing »
A team of Hub researchers at the University of Sussex have for the first time built a modular quantum brain scanner, and used it to record a brain signal. This is the first time a […]
npj Quantum Information, Published online: 11 June 2021; doi:10.1038/s41534-021-00433-y Robust preparation of many-body ground states in Jaynes–Cummings lattices
In a major scientific leap, researchers have created a quantum microscope that can reveal biological structures that would otherwise be impossible to see. Read More Quantum Computers News — ScienceDaily
Paris, June 8th 2021 C12 Quantum Electronics today announces the closing of a $10 million seed round comprising funds from 360 Capital, Bpifrance (Digital Venture Fund), Airbus Ventures, BNP Paribas Développement, and Octave Klaba (OVHcloud), […]
npj Quantum Information, Published online: 09 June 2021; doi:10.1038/s41534-021-00428-9 Tight finite-key analysis for quantum key distribution without monitoring signal disturbance
Paris, June 8, 2021 – Pasqal today announced it has raised €25M in Series A funding. The round was led by Quantonation and the Defense Innovation Fund, managed by Bpifrance on behalf of the Defense Innovation Agency […]
The future quantum computers should be capable of super-fast and reliable computation. Today, this is still a major challenge. Now, computer scientists conduct an early exploration for reliable quantum machine learning. Read More Quantum Computers […]
npj Quantum Information, Published online: 08 June 2021; doi:10.1038/s41534-021-00423-0 Experimental quantum kernel trick with nuclear spins in a solid
npj Quantum Information, Published online: 08 June 2021; doi:10.1038/s41534-021-00421-2 Full daylight quantum-key-distribution at 1550 nm enabled by integrated silicon photonics
Physicists have created a quantum interferometer on an atom chip. This device can be used to explore the fundamentals of quantum theory by studying the interference pattern between two beams of atoms. Physicists describe how […]
A group has worked out theoretically how the communication between two quantum dots can be influenced with light. The team shows ways to control the transfer of information or energy from one quantum dot to […]
In the world of quantum mechanics, researchers can even make empty space, the lack of something, do their bidding. Scientists have now created a new setup to control the absence of electrons in a solid […]
In order to create resilient systems in our critical national infrastructure, we cannot allow for single point failures. And yet, our most commonly used satellite navigation system has vulnerabilities which allow exactly this. System weaknesses […]
npj Quantum Information, Published online: 03 June 2021; doi:10.1038/s41534-021-00425-y A variational toolbox for quantum multi-parameter estimation
npj Quantum Information, Published online: 03 June 2021; doi:10.1038/s41534-021-00431-0 Saving superconducting quantum processors from decay and correlated errors generated by gamma and cosmic rays
npj Quantum Information, Published online: 03 June 2021; doi:10.1038/s41534-021-00408-z Cyclic cooling of quantum systems at the saturation limit
npj Quantum Information, Published online: 03 June 2021; doi:10.1038/s41534-021-00427-w Quantum simulations with multiphoton Fock states
npj Quantum Information, Published online: 02 June 2021; doi:10.1038/s41534-021-00411-4 Counterfactual ghost imaging
npj Quantum Information, Published online: 02 June 2021; doi:10.1038/s41534-021-00426-x Optimal teleportation via noisy quantum channels without additional qubit resources
npj Quantum Information, Published online: 02 June 2021; doi:10.1038/s41534-021-00429-8 Avoiding coherent errors with rotated concatenated stabilizer codes
Researchers experimentally show that quantum resources have an advantage over classical — even in the NISQ era. Read More Quantum Computers News — ScienceDaily
Researchers have discovered a new mechanism in magnetic compounds that couples multiple topological bands. The coupling can significantly enhance the effects of quantum phenomena. Read More Quantum Computers News — ScienceDaily
We are delighted to announce that LIGENTEC SA, leader in low loss Silicon Nitride Integrated Photonics, has become a member of the Swiss Quantum Hub (SQH). Swiss based LIGENTEC provides custom specific integrated photonics circuits for […]
npj Quantum Information, Published online: 01 June 2021; doi:10.1038/s41534-021-00409-y Implementation of quantum imaginary-time evolution method on NISQ devices by introducing nonlocal approximation