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.
The International Clock and Oscillator Networking (ICON) project has been awarded £1.5 million in funding from the Engineering and Physical Sciences Research Council (EPSRC) to bring together world-leading transportable optical clocks and world-leading optical link […]
A new, more precise method of simulating quantum materials has revealed the basis for superconductivity in copper-based oxides known as cuprates. Researchers, using powerful supercomputers, found that phonons, vibrational energy from crystal structure, contribute to […]
Agnostiq, a Quantum Computing SaaS startup located in Toronto, announced the release of Covalent, an open-source workflow orchestration platform designed specifically for quantum computing and HPC technologies. Covalent aims to make quantum and high performance computing resources […]
A group of scientists from the University of Chicago and Purdue University collaborated on a new technique for mitigating noise in quantum computers: Instead of directly trying to measure the noise, they instead construct a […]
MIT researchers have used ultrathin materials to build superconducting qubits that are at least one-hundredth the size of conventional designs and suffer from less interference between neighboring qubits. This advance could improve the performance of quantum computers and enable […]
Researchers used the 2D material hexagonal boron nitride to build much smaller capacitors for superconducting qubits, enabling them to shrink the footprint of a qubit by two orders of magnitude without sacrificing performance. Read More […]
Within the field of spintronics, devices based on the interaction between spin and heat flow have emerged as a potential candidate for new thermoelectric devices (devices which convert heat to electricity). “Magnons,” quanta of spin […]
npj Quantum Information, Published online: 27 January 2022; doi:10.1038/s41534-022-00521-7 Optimal control of stimulated Raman adiabatic passage in a superconducting qudit
npj Quantum Information, Published online: 27 January 2022; doi:10.1038/s41534-022-00516-4 How to build Hamiltonians that transport noncommuting charges in quantum thermodynamics
npj Quantum Information, Published online: 27 January 2022; doi:10.1038/s41534-022-00519-1 A two-way photonic quantum entanglement transfer interface
npj Quantum Information, Published online: 27 January 2022; doi:10.1038/s41534-021-00514-y Xor-And-Inverter Graphs for Quantum Compilation
Recently, magnons (units of electron spin excitation waves) have been considered for information processing. Especially, utilizing thermally excited energetic magnons have been of interest. In parallel, the demand for faster and energy-efficient electronic devices has […]
Quantum researchers have dramatically reduced the time to simulate an optical quantum computer, with a speedup of around one billion over previous approaches. Quantum computers promise exponential speedups for certain problems, with potential applications in […]
Physicists at MIT have discovered a new qubit, in the form of vibrating pairs of atoms known as fermions. The new qubit appears to be extremely robust, able to maintain superposition between two vibrational states, […]
Researchers in the United Kingdom and the Netherlands decided to explore two very different quantum problems: breaking the encryption of Bitcoin and simulating the molecule responsible for biological nitrogen fixation. The team has especially described […]
PQShield, a cybersecurity company specializing in post-quantum cryptography, has today announced $20 million in series A funding. The operation has been led by Addition, the venture firm founded by Lee Fixel, with participation from existing […]
A physicist has proposed a radical solution to the question of how a charged particle, such as an electron, responded to its own electromagnetic field. This question has challenged physicists for over 100 years but […]
Researchers decided to explore two very different quantum problems: breaking the encryption of Bitcoin and simulating the molecule responsible for biological nitrogen fixation. They describe a tool they created to determine how big a quantum […]
HQS Quantum Simulations, an European startup for complex quantum simulations, has concluded a Series-A financing round and secured more than 12 million euros together with new research funding.
A team at Wells Fargo and University of California has just released a paper on solving a central and difficult problem in Financial Engineering: Computing Weighted Sums. Those familiar with expected values, value at risk, or […]
Scientists from MIT‘s Computer Science and Artificial Intelligence (CSAIL) created their own programming language for Quantum Computing called Twist. Twist can describe and verify which pieces of data are entangled in a quantum program, through […]
Researchers at the Hong Kong University of Science and Technology (HKUST) have demonstrated a new way to control the quantum state through the loss of particle. This process is usually avoided in the quantum devices. This […]
Researchers have demonstrated a new way to control the quantum state through the loss of particles — a process that is usually avoided in the quantum device, offering a new way towards the realization of […]
The Riemann zeta function is a deceptively straightforward function that has perplexed mathematicians since the 19th century. The most famous quandary, the Riemann hypothesis, is perhaps the greatest unsolved question in mathematics, with the Clay […]
Another “right-now” use case for quantum computing in financial services. Continue reading on Quantum Computing »