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.
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 […]
Large-scale communication networks, such as the Internet, rely on routing packets of data through multiple intermediate nodes to transmit information from a sender to a receiver. Researchers has developped a model of a quantum communication […]
Northwestern University engineers have accomplished a significant feat by successfully demonstrating quantum teleportation through fiber optic cables while simultaneously carrying regular Internet traffic. Led by Professor Prem Kumar, the team published their findings in Optica […]
This paper improves and demonstrates the usefulness of the first quantized plane-wave algorithms for the quantum simulation of electronic structure. The researchers describe their quantum algorithm for first quantized simulation that accurately includes pseudopotentials. They […]
Christian Schneider, a quantum physicist at the University of Oldenburg in Germany, has been awarded a prestigious European Research Council (ERC) Consolidator Grant of approximately two million euros for his groundbreaking research into two-dimensional materials […]
Researchers at the University of Chicago’s Pritzker School of Molecular Engineering have developed a groundbreaking quantum processor design that challenges traditional computational architectures. Unlike conventional quantum chips that arrange qubits in rigid 2D grids, this […]
MIT physicists have made a groundbreaking discovery about electron behavior in pentalayer graphene, revealing that electrons can exhibit fractional charges without a magnetic field—a phenomenon previously thought impossible. This research, led by Professor Senthil Todadri […]
The groundbreaking study by Rice University physicist Qimiao Si delves into the fascinating world of quantum critical metals, materials that defy conventional physics by exhibiting extraordinary behavior at low temperatures. Published in Nature Physics, the […]
The groundbreaking research by QuTech represents a significant advancement in quantum computing technology, demonstrating the successful interconnection of spin qubits over unprecedented distances. By achieving coherent logic operations between qubits positioned 250 micrometers apart on […]