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 achieved a major quantum computing breakthrough by using a 56-qubit quantum computer to generate certifiably random numbers verified by classical supercomputers, marking a shift from theoretical quantum advantage to practical application with significant implications for cryptography, security, and fairness.
Princeton physicists accidentally discovered and directly visualized Hofstadter’s butterfly—a theoretical fractal pattern of electron energy levels predicted in 1976—using scanning tunneling microscopy on twisted bilayer graphene, revealing not only the long-sought fractal energy spectrum but also new quantum phenomena driven by electron interactions beyond Hofstadter’s original calculations.
An international research team has developed a groundbreaking technique to integrate superconductors with semiconductors by patterning platinum on germanium and heating it to form a superconducting alloy, demonstrating coherent quantum states that could enable hybrid quantum processors combining the scalability of semiconductor qubits with the long-range connectivity of superconducting circuits.
Researchers developed and experimentally validated a neural network-based protocol that can efficiently measure quantum entanglement in large systems (up to 100 qubits) using only local measurements, while also predicting future entanglement dynamics beyond the measurement window.
Researchers have developed a framework to split quantum circuits into smaller parallel components, allowing quantum computers to solve optimization problems larger than their available qubit count while maintaining solution quality through a global optimization approach.
A QuTech research team demonstrated initialization, readout, and universal control of four qubits created from eight germanium quantum dots, achieving quantum information transfer with 75% Bell state fidelity and establishing a versatile platform for quantum computing advancement.
Microsoft has demonstrated the world’s first topological qubit using Majorana Zero Modes in specially-engineered topoconductor materials, achieving measurement-based control through quantum dot interactions while securing DARPA support to build a fault-tolerant prototype that could scale to one million qubits and revolutionize scientific discovery.
Using Quobly’s Strategy to Build Qubits With FD-SOI Technology, Readout Architecture ‘Provides a Path to Low Power and Scalable Quantum’ ICs
The research demonstrates how quantum state tomography can reveal the full quantum characteristics of photoelectrons emitted from atoms, showing pure quantum states in helium but mixed states in argon due to spin-orbit coupling, thus bridging photoelectron spectroscopy with quantum information science.
A quantum circuit refrigerator based on photon-assisted electron tunneling can effectively cool and stabilize Kerr-cat qubits by providing tunable dissipation while preserving their advantageous error-bias characteristics through quantum interference suppression of unwanted bit flips.
Scientists at Leibniz University Hannover have developed a cost-effective quantum network security system using frequency-bin coding of light particles, which reduces complexity and equipment costs by 75% while enhancing security against quantum computer threats through a simplified single-detector design that enables dynamic, scalable quantum key distribution.
Scientists at Oak Ridge National Laboratory successfully transmitted entangled quantum signals without interruption over a commercial fiber-optic network using automatic polarization compensation, marking a crucial advance toward practical quantum internet development.
This research demonstrates a Contextual Subspace Variational Quantum Eigensolver on superconducting hardware that successfully models N₂ molecular bond-breaking with superior accuracy to single-reference wavefunction techniques, achieved through comprehensive error mitigation strategies and circuit optimization while requiring fewer quantum resources than comparable classical approaches.
Scientists at the ARC Centre of Excellence for Transformative Meta-Optical Systems have developed a groundbreaking quantum imaging technique using an ultra-thin nonlinear metasurface that generates spatially entangled photon pairs, eliminating the need for mechanical scanning and achieving resolution four orders of magnitude better than conventional systems, paving the way for compact quantum imaging applications in LiDAR, secure communication, and advanced sensing.
A research team has developed an innovative hybrid quantum-classical computing approach that combines quantum optimization, machine learning, and classical computations to efficiently screen thousands of diarylethene derivatives, successfully identifying five promising photochromic compounds with optimal properties for light-controlled drug delivery applications.
ISTA physicists have developed a breakthrough method to connect superconducting qubits using fiber optics instead of traditional electrical signals, significantly reducing cooling requirements and potentially enabling the scaling and networking of quantum computers by converting optical signals to microwave frequencies that qubits can process.
Researchers have developed a groundbreaking universal model that uses quantum entanglement to explain how particles emerge from high-energy proton collisions, successfully matching experimental data from the HERA accelerator and potentially transforming our understanding of nuclear physics through future testing at facilities like the Electron-Ion Collider.
Scientists have proven that Maxwell’s Demon cannot violate the second law of thermodynamics in any quantum scenario, as the energy gains from information-based sorting must always be balanced by the energy costs of measurement and memory erasure, regardless of how these processes are implemented.
A groundbreaking quantum cooling protocol demonstrates how a macroscopic oscillator can mediate between a single-probe spin and a spin ensemble, achieving ground-state cooling through weak dispersive coupling and measurement feedback, with promising applications in quantum technology and remote sensing.
A novel quantum key distribution encoder called MacZac combines Sagnac and Mach-Zehnder interferometers with a single phase modulator to achieve exceptionally low error rates and high stability in time-bin encoded quantum communications, while simplifying the optical setup and eliminating the need for active compensation.
Researchers have presented an on-chip temporal multiplexing scheme utilizing Thin-Film Lithium Niobate (TFLN) photonics.
Researchers have showed that a microscopic parametrization of quantum gates under time-correlated noise on the driving phase, motivated by recent experiments with trapped-ion gates, enables a more efficient version of GST.
Physicists achieved a quantum computing breakthrough by successfully connecting separate quantum processors through photonic links, enabling quantum teleportation of logical gates between modules and demonstrating the first distributed quantum computer system, which could potentially scale up without the limitations of cramming millions of qubits into a single device.
Researchers resolved the apparent paradox between quantum mechanics and classical thermodynamics by demonstrating that while von Neumann entropy remains constant in quantum systems, Shannon entropy increases over time just as classical entropy does, thereby reconciling quantum theory with the second law of thermodynamics.
A team has reported on the first demonstration of precise control of single photon states on an 11-dimensional continuously-coupled programmable waveguide array.
Quantum Extreme Learning Machines (QELMs) leverage untrained quantum dynamics to efficiently process information encoded in input quantum states, avoiding the high computational cost of training more complicated nonlinear models. On the other hand, Quantum Information […]
Scientists have developed a groundbreaking device that uses dual-colored laser beams to levitate and study pairs of electrically charged glass nanospheres.