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.
D-Wave Quantum Inc. has achieved the world’s first demonstration of quantum computational supremacy on a useful real-world problem, using their Advantage2 prototype quantum annealer to perform complex magnetic materials simulations in minutes that would take a classical supercomputer nearly one million years and consume more than the world’s annual electricity.
Researchers at China’s USTC have developed Zuchongzhi-3, a groundbreaking 105-qubit quantum computer that processes calculations 10^15 times faster than the most powerful supercomputers and one million times faster than Google’s latest quantum systems, marking a significant advancement in quantum supremacy.
Amazon Web Services has unveiled Ocelot, a groundbreaking quantum chip that uses cat qubits and bosonic quantum error correction to significantly reduce resource requirements, achieving bit-flip times approaching one second while requiring only one-tenth the resources of traditional approaches, potentially revolutionizing the path to commercially viable quantum computing.
Physicists at Osaka Metropolitan University developed simplified formulas to quantify quantum entanglement between selected atoms and their environment in strongly correlated electron systems, revealing unexpected quantum interaction patterns that could advance quantum technologies.
Scientists have made a breakthrough in quantum computing by discovering how electrons can appear to split in half through quantum interference, potentially bringing us closer to creating topological quantum computers. This research, published in Physical […]
Among various classes of Quantum Error Correcting Codes (QECCs), non-stabilizer codes have rich properties and are of theoretical and practical interest. Decoding non-stabilizer codes is, however, a highly non-trivial task. In this paper, researchers show […]
Extended quantum networks are based on quantum repeaters that often rely on the distribution of entanglement in an efficient and heralded fashion over multiple network nodes. Many repeater architectures require multiplexed sources of entangled photon […]
Engineers at Penn Engineering have achieved a remarkable advancement in Nuclear Quadrupolar Resonance (NQR) spectroscopy, developing a technique capable of detecting signals from individual atoms. This breakthrough represents a significant leap forward from traditional methods […]
Scientists have made a groundbreaking discovery of semi-Dirac fermions, unique quasiparticles that exhibit both massless and massive behavior depending on their direction of movement. This discovery was made in crystals of the semi-metal ZrSiS by […]
Scientists at Brown University have made a significant breakthrough by discovering a new class of quantum particles called fractional excitons, which display characteristics of both fermions and bosons. The research, published in Nature on January […]
Simulating the dynamics of open quantum systems is essential in achieving practical quantum computation and understanding novel nonequilibrium behaviors. However, quantum simulation of a many-body system coupled to an engineered reservoir has yet to be […]
A significant advancement in quantum technology has been achieved through the successful demonstration of an integrated spin-wave quantum memory, addressing key challenges in photon transmission loss and noise suppression. This development is particularly crucial for […]
Researchers used arrays of synthetic atoms and ultracold matter waves to demonstrate previously unseen collective spontaneous emission effects.
A breakthrough discovery by twin physicists Professors Chris and Martin White has revealed an unexpected connection between the Large Hadron Collider (LHC) and quantum computing through a property called “magic” in top quarks. Published in […]
The scientific community has made a groundbreaking discovery that challenges our traditional understanding of classical and quantum physics. Researchers have identified quantum coherence within classical light fields, a finding that questions long-held assumptions about the […]
Quantum walks represent a revolutionary quantum computing paradigm that surpasses classical computational methods by leveraging fundamental quantum phenomena like superposition, interference, and entanglement. This technology has been comprehensively analyzed in recent research from China’s National […]
Superradiance is a quantum phenomenon where atoms emit light collectively when interacting with cavity photons. This effect has been well-studied in optical cavities but remains elusive in free space due to synchronization challenges. In optical […]
Scientists achieved a breakthrough by synchronizing six mechanical oscillators into a collective quantum state using a superconducting platform.
To achieve scalable universal quantum computing, scientists need to implement a universal set of logical gates fault-tolerantly, for which the main difficulty lies with non-Clifford gates. Researchers have demonstrated that several characteristic features of the […]
In a new study, researchers from the Max Planck Institute of Quantum Optics under the lead of Timon Hilker demonstrated evidence of stripe formation, i.e. extended structures in the density pattern, in a cold-atom Fermi-Hubbard […]
Legitimate quantum operations must adhere to principles of quantum mechanics, particularly the requirements of complete positivity and trace preservation. Yet, non-completely positive maps, especially Hermitian-preserving maps, play a crucial role in quantum information science. Researchers […]
Optical quantum communication technologies are making the prospect of unconditionally secure and efficient information transfer a reality. The possibility of generating and reliably detecting quantum states of light, with the further need of increasing the […]
Scientists propose a fault-tolerant scheme for generating long-range entanglement at the ends of a rectangular array of qubits of length R. It is realized by a constant-depth circuit producing a constant-fidelity Bell-pair (independent of R) for local […]
Fast and high-fidelity qubit measurement is essential for Quantum Error Correction (QEC) in universal quantum computing. This study examines dispersive measurement of a spin in a semiconductor double quantum dot using a nonlinear microwave resonator. […]
Japanese researchers have achieved a significant advancement in quantum sensing technology by developing nanodiamond sensors that combine excellent brightness for bioimaging with quantum-grade spin properties comparable to bulk diamonds. This breakthrough, published in ACS Nano […]
Linköping University researchers have experimentally validated a theoretical connection between quantum mechanics and information theory, specifically confirming a 2014 mathematical proposition from Singapore that links the complementarity principle to entropic uncertainty. This breakthrough bridges fundamental […]
Scientists have made a significant breakthrough by confirming the existence of a quantum spin liquid state in a crystal material called pyrochlore cerium stannate. In normal materials, electron spins (which act like tiny magnets) typically […]
UC Santa Barbara researchers have developed a breakthrough in laser technology: a compact, chip-scale laser that matches or exceeds the performance of much larger laboratory systems while being significantly more affordable. Led by Professor Daniel […]