Be it magnets or superconductors: materials are known for their various properties. However, these properties may change spontaneously under extreme conditions. Researchers have discovered an entirely new type of such phase transitions. They display the […]
Computer scientists have succeeded in developing a method for systematically finding the optimal quantum operation sequence for a quantum computer. They have developed a systematic method that applies optimal control theory (GRAPE algorithm) to identify […]
Single-electron conveyor-mode shuttling in Si/SiGe quantum channels demonstrates 99.42% fidelity using only four control signals independent of distance, enabling scalable quantum computing architectures by solving the signal-fanout problem in connecting dense qubit registers.
A new method for correcting errors in the calculations of quantum computers potentially clears a major obstacle to a powerful new realm of computing.
Physicists have managed to entangle more than a dozen photons efficiently and in a defined way. They are thus creating a basis for a new type of quantum computer. Read More Quantum Computers News — […]
The research proposes a novel scheme for generating scalable quantum entanglement using ultracold atoms in optical superlattices, where atoms are sequentially entangled in double wells and then reconfigured through lattice phase shifts, resulting in a noise-resistant genuine multipartite entangled state suitable for practical quantum computing implementations.
Scientists have developed a mathematical description of what happens within tiny magnets as they fluctuate between states when an electric current and magnetic field are applied. Their findings could act as the foundation for engineering […]
Researchers have achieved a major step toward large-scale quantum computing by demonstrating error correction in a three-qubit silicon-based quantum computing system. This work could pave the way toward the achievement of practical quantum computers. Read […]
Researchers have proposed that the micromasers can serve as excellent model for future quantum batteries. Read More Quantum Computers News — ScienceDaily
Scientists have discovered that in quantum systems, certain patterns of entanglement between parts of a system can reveal additional entanglement relationships not directly observed, proving this phenomenon exists for both small and large quantum systems and characterizing specific conditions under which it occurs.
Researchers report an experimental demonstration of a space-to-ground quantum key distribution (QKD) network using a compact QKD terminal aboard the Chinese Space Lab Tiangong-2 and four ground stations. The demonstration represents an important step toward […]
Researchers have successfully created electron-photon pairs in a controlled way in an electron microscope. Read More Quantum Computers News — ScienceDaily
By using photons and electron spin qubits to control nuclear spins in a two-dimensional material, researchers have opened a new frontier in quantum science and technology, enabling applications like atomic-scale nuclear magnetic resonance spectroscopy, and […]
An international research team has detected novel quantum effects in high-precision studies of natural double-layer graphene. This research provides new insights into the interaction of the charge carriers and the different phases, and contributes to […]
Quantum coherence in diamond-based NV centers, crucial for quantum computing applications, faces limitations from decoherence effects. This study examines how nitrogen impurities (P1 centers) impact NV-spin coherence using cluster correlation expansion and density functional theory. Results show T2 varies linearly with P1 concentrations (log scale, -1.06 slope), matching experimental data. The Jahn-Teller effect and hyperfine interactions significantly influence decoherence dynamics. These findings establish theoretical T2 limits across P1 densities, guiding material optimization for quantum devices.
Theoretical work reveals an unexpected link between two major principles in physics that may inform future experimentation and an understanding of how to harness quantum information. Read More Quantum Computers News — ScienceDaily
Researchers have used the coldest systems in the universe to realize in the laboratory gauge theories, key models of modern physics that describe the fundamental forces of Nature and the behavior of complex quantum materials. […]
An international collaboration of scientists has created and observed an entirely new class of vortices — the whirling masses of fluid or air. A new article details laboratory studies of these ‘exotic’ whirlpools in an […]
Researchers have demonstrated how a smart compiler specifically tailored for superconducting quantum hardware can optimize circuits and networks and execute less error-prone quantum algorithms such as Quantum Approximate Optimization Algorithm (QAOA) important for quantum computing. […]
Zurich Instruments offers Quantum Computing researchers a fast track to unleashing the power of parametric amplification for qubit readout. While being critical to achieve the high measurement speed and low error rates needed for quantum […]
Researchers have designed smart, color-controllable white light devices from quantum dots — tiny semiconductors just a few billionths of a meter in size — which are more efficient and have better color saturation than standard LEDs, and can dynamically reproduce daylight conditions in a single light.
A roadmap for the future direction of quantum simulation. Read More Quantum Computers News — ScienceDaily
Scientists have used neutron scattering to determine whether a specific material’s atomic structure could host a novel state of matter called a spiral spin liquid. By tracking tiny magnetic moments known as ‘spins’ on the […]
A method known as quantum key distribution has long held the promise of communication security unattainable in conventional cryptography. An international team of scientists has now demonstrated experimentally, for the first time, an approach to […]
An international team has successfully implemented an advanced form of quantum cryptography for the first time. Moreover, encryption is independent of the quantum device used and therefore even more secure against hacking attempts. Read More […]