Researchers at Abu Dhabi’s Technology Innovation Institute (TII) have identified a new universality in dynamic phase transitions by investigating a "quench" scenario in a two-dimensional atomic cloud undergoing a Kosterlitz-Thouless (BKT) transition. They discovered the universal behavior that vortex pairs form from the fluctuations of the atomic cloud during this dynamic phase transition and successfully described the process using a real-time renormalization method. Their paper, titled “Universal scaling of the dynamic BKT transition in quenched 2D Bose gases”, was published in Science. Why it matters: This discovery could catalyze the development of sensitive quantum sensors and contributes to a better understanding of many-body dynamics.
Researchers from LENS, CNR-INO, the University of Florence, UNAM, RPTU University Kaiserslautern-Landau, and TII Abu Dhabi have observed Shapiro steps in ultracold atoms for the first time. This allows for real-time observation of quantum mechanics and could lead to advanced quantum sensors and simulation. The experiments involved creating vortex-antivortex pairs, resulting in step-like signals, and the findings were published in Science. Why it matters: This breakthrough provides a new method to observe and control quantum coherence, potentially enabling advancements in quantum technologies and simulations within the region.
Sergey Kozlov, a research scientist at KAUST's Catalysis Center (KCC), is leaving to take up a tenure-track position as an assistant professor at the National University of Singapore (NUS). During his time at KAUST, Kozlov focused on simulating the chemical properties of catalysts using computational chemistry methods and the Shaheen II supercomputer. His research focused on applications in energy and CO2 utilization technologies. Why it matters: Kozlov's move highlights KAUST's role in developing research talent and contributing to advancements in computational chemistry and catalysis within the region.
This article summarizes presentations from an internal Quantum Research Center (QRC) workshop at the Technology Innovation Institute (TII). Topics covered included superconducting quantum computers, quantum coherent networks, quantum simulation, and quantum machine learning. Several presentations also discussed experimental quantum technologies. Why it matters: The workshop highlights TII's ongoing research activities in quantum computing and related technologies, signaling its commitment to advancing the field in the UAE.
A DeepMind researcher presented work on incorporating symmetries into machine learning models, with applications to lattice-QCD and molecular dynamics. The work includes permutation and translation-invariant normalizing flows for free-energy estimation in molecular dynamics. They also presented U(N) and SU(N) Gauge-equivariant normalizing flows for pure Gauge simulations and its extensions to incorporate fermions in lattice-QCD. Why it matters: Applying symmetry principles to generative models could improve AI's ability to model complex physical systems relevant to materials science and other fields in the region.
KAUST researchers have published a review paper in Science magazine covering memristor technology, comparing it to the original transistor. Dr. Mario Lanza is the lead author of the paper, which summarizes data supporting memristor technology readiness across materials and applications. The paper statistically shows the technical criteria for how memristors function in various configurations. Why it matters: Memristors could become the new switching technology standard, surpassing transistors in speed and operational efficiency, especially as current chip technology reaches its quantum limit in terms of size.
The Atomtronics@AbuDhabi2021 meeting, held virtually via Zoom, focused on recent advancements in cold atom quantum technology, particularly within the emerging field of Atomtronics. The meeting covered applicative, experimental, and theoretical aspects of atomic circuits for computation, communication, and sensing. Poster sessions were organized in Zoom breakout rooms. Why it matters: The event signals growing interest and activity in quantum technologies and quantum simulation within the UAE, with potential implications for future research and development in the region.
Professor Christian Roos from the University of Innsbruck will present a seminar on investigating many-body physics using trapped ions dressed by laser light. The talk will cover encoding, manipulating, and entangling quantum information using laser-cooled trapped ions. Recent experiments demonstrating entangling interactions and single-qubit control in strings of up to 50 ions will be discussed. Why it matters: This seminar contributes to advancements in quantum computing and simulation, fields of increasing interest in the Middle East as the region invests in advanced technologies.