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.
Researchers have proposed a quantum implementation of the Stochastic Series Expansion (SSE) Monte Carlo method and shown it offers significant advantages over classical implementations of SSE. In particular, for problems where classical SSE encounters the […]
Two teams of researchers working independently have shown the viability of using neutral atoms to create quantum circuits. One of the groups, with members from the University of Wisconsin, Madison, ColdQuanta and Riverlane, successfully ran […]
Stanford University researchers have developed a key experimental device for future quantum physics-based technologies that borrows a page from current, everyday mechanical devices. Reliable, compact, durable, and efficient, acoustic devices harness mechanical motion to perform […]
Physicists at the University of California have demonstrated the use of a hydrogen molecule as a quantum sensor in a terahertz laser-equipped scanning tunneling microscope, a technique that can measure the chemical properties of materials […]
Autonomous quantum error correction has gained considerable attention to avoid complicated measurements and feedback. Despite its simplicity compared with the conventional measurement-based quantum error correction, it is still a far from practical technique because of […]
The rapid development of quantum computing technologies already made it possible to manipulate a collective state of several dozens of qubits, which poses a strong demand on efficient methods for characterization and verification of large-scale […]
Scientists from both parties will co-develop what will effectively be a virtual laboratory. The aim is to conduct experiments using quantum computing and other Microsoft Azure cloud services. Quantum chemical computation is capable of simulating […]
A team of researchers at Tsinghua University in China, has broken the distance record for Quantum Secure Direct Communication (QSDC) by sending information using their protocol a distance of 102.2 km. They devised a new […]
Researchers at the University of Washington and the University of Hong Kong have discovered that light from a laser can trigger a form of magnetism in a normally nonmagnetic material. This magnetism centers on the […]
In the era of Noisy Intermediate-Scale Quantum (NISQ) computers it is crucial to design quantum algorithms which do not require many qubits or deep circuits. Unfortunately, most of the well-known quantum algorithms are too demanding […]
Researchers at the Department of Energy’s Oak Ridge National Laboratory, SRI International, Freedom Photonics and Purdue University have made strides toward a fully quantum internet by designing and demonstrating the first-ever Bell state analyzer for […]
In a new report now published in Nature Communications Physics, an international team of scientists in quantum technologies, functional quantum systems and quantum physics, developed a new framework of operational criterion for physical reality. This attempt […]
Quantinuum has reached another milestone in its quest to build the highest performing quantum computer in the world. This week, the System Model H1-2 doubled its performance to become the first commercial quantum computer to […]
With their superior properties, topological qubits could help achieve a breakthrough in the development of a quantum computer designed for universal applications. So far, no one has yet succeeded in unambiguously demonstrating a quantum bit, […]
A University of Michigan research team has developed the first reliable, scalable method for growing single layers of hexagonal boron nitride on graphene. The process can produce large sheets of high-quality hBN with the widely […]
Lawrence Berkeley National Laboratory physicists have leveraged an IBM Q quantum computer through the Oak Ridge Leadership Computing Facility to capture part of a calculation of two protons colliding. The calculation can show the probability […]
Quantum Machines, Alice&Bob and European quantum computing research groups led by Prof. Benjamin Huard from the Ecole Normale Supérieure de Lyon and Prof. Florian Marquardt of the Max Planck Institute for the Science of Light, has announced the launch of Project ARTEMIS.
A team of physicists from the University of Glasgow and Heriot-Watt University have found a new way to create detailed microscopic images under conditions which would cause conventional optical microscopes to fail. They have managed […]
Researchers from the University of Tokyo and NTT Corporation have successfully generated strongly nonclassical light using a modular waveguide-based light source. By combining a waveguide Optical Parametric Amplifier (OPA) module created for quantum experiments and […]
Researchers from the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) in collaboration with industry partners at Freedom Photonics and HyperLight Corporation, have developed the first fully integrated high-power laser on a […]
A new study has demonstrated topological control capabilities in an acoustic system, with implications for applications such as 5G communications and quantum information processing. This research builds on concepts from the field of topological materials, […]
Research conducted by Princeton University physicists is paving the way for the use of silicon-based technologies in quantum computing, especially as quantum bits. This research promises to accelerate the use of silicon technology as a […]
Researchers are now demonstrating how nanoparticles in tiny optical resonators can be transferred into quantum regime and used as high-precision sensors. The team has proposed a new concept for a high-precision quantum sensor. The researchers […]
Scientists have uncovered a mathematical shortcut for calculating an all-important feature of quantum devices. Having crunched the numbers on the quantum properties of 12,000 elements and compounds, researchers have published a new equation for approximating […]
It is well established that quantum error correction can improve the performance of quantum sensors. But new theory work cautions that, unexpectedly, the approach can also give rise to inaccurate and misleading results — and […]