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.
An exceptionally large grant will allow a team of Empa researchers to work on an ambitious project over the next ten years: The Werner Siemens Foundation (WSS) is supporting Empa’s CarboQuant project with 15 million Swiss francs.
Researchers from Aalto University propose a new approach to measure the energy of single microwave photons. These low energy quanta are emitted by artificial quantum systems such as superconducting qubits. Detecting them continuously has been […]
Nord Quantique, a Sherbrooke-based Canadian Quantum Computing technology start-up, announced it has closed CAD $9.5 Million seed funding. Nord Quantique develops technology using superconducting qubits to solve challenges within current quantum processors. Co-leading this seed investment is BDC Capital’s […]
Title: Test & measurement in Quantum Computing Date: Tuesday, February 22, 2022 Time: 2:00pm CET / 8 :00am EST Duration: 45 minutes Join Rohde & Schwarz’s webinar on test & measurement in quantum computing. This webinar is intended for […]
A team of Duke University and Weizmann Institute researchers report a keystone achievement in the spintronics field: the development of a conducting system that controls the spin of electrons and transmits a spin current over […]
npj Quantum Information, Published online: 08 February 2022; doi:10.1038/s41534-022-00518-2 Classical and quantum chaos in chirally-driven, dissipative Bose-Hubbard systems
Understanding the structural properties of molecules found in nature or synthesized in the laboratory has always been the bread and butter of materials scientists. These researchers rely upon sophisticated simulation techniques that incorporate the rules […]
A few years ago, a novel measurement technique showed that protons are probably smaller than had been assumed since the 1990s. The discrepancy surprised the scientific community. Some researchers even believed that the Standard Model […]
Researchers have developed an instrument to image the acoustic waves generated by micromechanical resonators over a wide range of frequencies and produce ‘movies’ of them with unprecedented detail. Read More Quantum Computers News — ScienceDaily
Researchers have revived and improved a once-reliable technique to identify and count defects in transistors, the building blocks of modern electronic devices such as smartphones and computers. Read More Quantum Computers News — ScienceDaily
A research team has developed an in situ transmission electron microscopy (TEM) technique that can be used to precisely manipulate individual molecular structures. Using this technique, the team succeeded in fabricating carbon nanotube (CNT) intramolecular […]
Researchers at the Department of Physics and the Swiss Nanoscience Institute of the University of Basel have used the principle of coherent feedback to cool a quantum system for the first time. Coherent feedback describes […]
npj Quantum Information, Published online: 03 February 2022; doi:10.1038/s41534-022-00522-6 Photonic resource state generation from a minimal number of quantum emitters
npj Quantum Information, Published online: 03 February 2022; doi:10.1038/s41534-022-00520-8 Entanglement-based quantum communication complexity beyond Bell nonlocality
npj Quantum Information, Published online: 03 February 2022; doi:10.1038/s41534-022-00517-3 Quasiprobability decompositions with reduced sampling overhead
A team of researchers at the Argonne National Laboratory and the University of Chicago has maintained a qubit coherence time for a record five seconds. The qubits are made from silicon carbide (SiC), widely found […]
For Quantum Computers to surpass their classical counterparts in speed and capacity, their qubits need to be on the same wavelength. Achieving this, however, has come at the cost of size. Whereas the transistors used […]
MIT scientists and colleagues have not only found a new way to manipulate magnetism in a material with light but have also realized a rare form of matter. Excitons are composed of an electron and […]
Scientists develop a chaos-based stream cipher that can withstand attacks from large-scale quantum computers. Read More Quantum Computers News — ScienceDaily
In recent years simulations of chemistry and condensed materials has emerged as one of the preeminent applications of quantum computing, offering an exponential speedup for the solution of the electronic structure for certain strongly correlated […]
The researchers showed that EASE gates make it drastically easier to implement circuit elements for universal quantum computation: An n-qubit Clifford circuit can be applied in only 6log(n) EASE gates, an n-qubit multiply-controlled NOT gate in 3n/2 EASE gates, and an n-qubit permutation in only six EASE gates.
Physicists at QuSoft and the University of Amsterdam have proposed a new architecture for a scalable quantum computer. Making use of the collective motion of the constituent particles, they were able to construct new building […]
Drilling with the beam of an electron microscope, scientists have precisely machined tiny electrically conductive cubes that can interact with light and organized them in patterned structures that confine and relay light’s electromagnetic signal. This […]
Scientists at the Georgia Tech Research Institute (GTRI) have demonstrated the feasibility of a new approach that moves trapped ion pairs through a single laser beam, potentially reducing power requirements and simplifying the system for […]
A research team has discovered an unusual topological aspect of sodium chloride, commonly known as table salt, which will not only facilitate the understanding of the mechanism behind salt’s dissolution and formation, but may also […]