Lara Faoro

Precision quantum simulation of magnon spectra and interactions

Trond I. Andersen, Nikita Astrakhantsev, Jeronimo Martinez, Will Morong et autres

Quantum simulation promises to advance materials discovery by accurately simulating complex states of matter, their microscopic excitations, and macroscopic response functions. The central challenge in resolving the underlying interacting dynamics is to combine high-fidelity evolution with the sophisticated control necessary to manipulate …

Precision quantum simulation of magnon spectra and interactions

Trond I. Andersen, Nikita Astrakhantsev, Jeronimo Martinez, Will Morong et autres

Quantum simulation promises to advance materials discovery by accurately simulating complex states of matter, their microscopic excitations, and macroscopic response functions. The central challenge in resolving the underlying interacting dynamics is to combine high-fidelity evolution with the sophisticated control necessary to manipulate …

Author Correction: Quantum error correction below the surface code threshold

Google Quantum AI and Collaborators, Rajeev Acharya, Dmitry A. Abanin, Laleh Aghababaie-Beni et autres

In the version of this article initially published, there were errors in Fig. 3a, where the x-axis label, now reading “Repetition code distance, d ” originally appeared as “Surface code distance, d ,” while in the Fig. 3a keys, the open and …

us, gb (code pays fourni par la source)

Correlated Phase Error Bursts in a Gap-Engineered Superconducting Qubit Array

Vladislav D. Kurilovich, Gabrielle Roberts, Leigh S. Martin, Matt McEwen et autres

One of the roadblocks toward the implementation of a fault-tolerant superconducting quantum processor is impacts of ionizing radiation with the qubit substrate. Such impacts temporarily elevate the density of quasiparticles (QPs) across the device, leading to correlated qubit error bursts. The most …

us (code pays fourni par la source)

Multifractal and Glassy Signatures of Non-Ergodic 2D Quantum Dynamics

A. V. Lunkin, Nicole Ticea, Michael T. Solomon, Riccardo Andreoni et autres

The fate of ergodicity and localization in disordered, interacting quantum systems in two spatial dimensions remains an outstanding open problem in non-equilibrium physics. Theoretical and numerical approaches are severely constrained by exponential Hilbert space growth. Here, we leverage the high data-acquisition rates …

Multifractal and Glassy Signatures of Non-Ergodic 2D Quantum Dynamics

A. V. Lunkin, Nicole Ticea, Michael T. Solomon, Riccardo Andreoni et autres

The fate of ergodicity and localization in disordered, interacting quantum systems in two spatial dimensions remains an outstanding open problem in non-equilibrium physics. Theoretical and numerical approaches are severely constrained by exponential Hilbert space growth. Here, we leverage the high data-acquisition rates …

si, us, gb (code pays fourni par la source)

Observation of disorder-induced superfluidity

Nicole Ticea, Elías Portolés, Eliott Rosenberg, Alexander Schuckert et autres

The emergence of states with long-range correlations in a disordered landscape is rare, as disorder typically suppresses the particle mobility required for long-range coherence. But when more than two energy levels are available per site, disorder can induce resonances that locally enhance …

Observation of disorder-induced superfluidity

Nicole Ticea, Elías Portolés, Eliott Rosenberg, Alexander Schuckert et autres

The emergence of states with long-range correlations in a disordered landscape is rare, as disorder typically suppresses the particle mobility required for long-range coherence. But when more than two energy levels are available per site, disorder can induce resonances that locally enhance …

Magic state cultivation on a superconducting quantum processor

Emma Rosenfeld, Craig Gidney, Gabrielle Roberts, Alexis Morvan et autres

Fault-tolerant quantum computing requires a universal gate set, but the necessary non-Clifford gates represent a significant resource cost for most quantum error correction architectures. Magic state cultivation offers an efficient alternative to resource-intensive distillation protocols; however, testing the proposal's assumptions represents a …

Observation of constructive interference at the edge of quantum ergodicity

Dmitry A. Abanin, Rajeev Acharya, Laleh Aghababaie-Beni, Georg Aigeldinger et autres

The dynamics of quantum many-body systems is characterized by quantum observables that are reconstructed from correlation functions at separate points in space and time1–3. In dynamics with fast entanglement generation, however, quantum observables generally become insensitive to the details of the underlying …

us, ca (code pays fourni par la source)

Geometric Phase Transition of the Three-Dimensional Z 2 Lattice Gauge Model

Ramgopal Agrawal, Leticia F. Cugliandolo, Lara Faoro, L. B. Ioffe et autres

After fifty years of lattice gauge theories (LGTs), the nature of the transition between their topological phases (confinement or deconfinement) remains challenging due to the absence of a local order parameter. In this work, we conduct a percolation analysis of Wegner's three-dimensional …

fr, us (code pays fourni par la source)

Constructive interference at the edge of quantum ergodic dynamics

Dmitry A. Abanin, Rajeev Acharya, Laleh Aghababaie-Beni, Georg Aigeldinger et autres

Quantum observables in the form of few-point correlators are the key to characterizing the dynamics of quantum many-body systems. In dynamics with fast entanglement generation, quantum observables generally become insensitive to the details of the underlying dynamics at long times due to …