Bob B. Buckley
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View article: Data for "Observation of disorder-free localization using a (2+1)D lattice gauge theory on a quantum processor"
Data for "Observation of disorder-free localization using a (2+1)D lattice gauge theory on a quantum processor" Open
This dataset contains the experimental data for arXiv:2410.06557, as well as two notebooks showing how to read the data files and reproduce figures from the paper. `1D` contains the data to reproduce Figure 1 and associated SM figures. `2D…
View article: Observation of constructive interference at the edge of quantum ergodicity
Observation of constructive interference at the edge of quantum ergodicity Open
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,…
View article: Visualizing Dynamics of Charges and Strings in (2+1)D Lattice Gauge Theories
Visualizing Dynamics of Charges and Strings in (2+1)D Lattice Gauge Theories Open
The datasets contained herein correspond to the raw data from the quantum processor and displayed results of the main figures of Visualizing Dynamics of Charges and Strings in (2+1)D Lattice Gauge Theories, published in Nature. For details…
View article: Scaling and logic in the color code on a superconducting quantum processor
Scaling and logic in the color code on a superconducting quantum processor Open
Quantum error correction is essential for bridging the gap between the error rates of physical devices and the extremely low logical error rates required for quantum algorithms. Recent error-correction demonstrations on superconducting pro…
View article: Demonstrating dynamic surface codes
Demonstrating dynamic surface codes Open
A remarkable characteristic of quantum computing is the potential for reliable computation despite faulty qubits. This can be achieved through quantum error correction, which is typically implemented by repeatedly applying static syndrome …
View article: Quantum error correction below the surface code threshold
Quantum error correction below the surface code threshold Open
View article: Quantum error correction below the surface code threshold
Quantum error correction below the surface code threshold Open
Quantum error correction provides a path to reach practical quantum computing by combining multiple physical qubits into a logical qubit, where the logical error rate is suppressed exponentially as more qubits are added. However, this expo…
View article: Thermalization and Criticality on an Analog-Digital Quantum Simulator
Thermalization and Criticality on an Analog-Digital Quantum Simulator Open
Understanding how interacting particles approach thermal equilibrium is a major challenge of quantum simulators. Unlocking the full potential of such systems toward this goal requires flexible initial state preparation, precise time evolut…
View article: Overcoming leakage in quantum error correction
Overcoming leakage in quantum error correction Open
View article: Data for "Phase transition in Random Circuit Sampling"
Data for "Phase transition in Random Circuit Sampling" Open
<p><strong>Purpose</strong></p>\n\n<p>This dataset defines the Random Quantum Circuits (RQCs) used in our paper "Phase transition in Random Circuit Sampling" and lists the bitstrings observed in the …
View article: Dynamics of magnetization at infinite temperature in a Heisenberg spin chain
Dynamics of magnetization at infinite temperature in a Heisenberg spin chain Open
Understanding universal aspects of quantum dynamics is an unresolved problem in statistical mechanics. In particular, the spin dynamics of the 1D Heisenberg model were conjectured to belong to the Kardar-Parisi-Zhang (KPZ) universality cla…
View article: Quantum information phases in space-time: measurement-inducedentanglement and teleportation on a noisy quantum processor
Quantum information phases in space-time: measurement-inducedentanglement and teleportation on a noisy quantum processor Open
Measurement has a special role in quantum theory 1 : by collapsing the wavefunction it can enable phenomena such as teleportation 2 and thereby alter the "arrow of time" that constrains unitary evolution. When integrated in many-body dynam…
View article: Measurement-induced entanglement and teleportation on a noisy quantum processor
Measurement-induced entanglement and teleportation on a noisy quantum processor Open
Measurement has a special role in quantum theory: by collapsing the wavefunction it can enable phenomena such as teleportation and thereby alter the "arrow of time" that constrains unitary evolution. When integrated in many-body dynamics, …
View article: Suppressing quantum errors by scaling a surface code logical qubit
Suppressing quantum errors by scaling a surface code logical qubit Open
Practical quantum computing will require error rates well below those achievable with physical qubits. Quantum error correction 1,2 offers a path to algorithmically relevant error rates by encoding logical qubits within many physical qubit…
View article: Formation of robust bound states of interacting microwave photons
Formation of robust bound states of interacting microwave photons Open
View article: Purification-based quantum error mitigation of pair-correlated electron simulations
Purification-based quantum error mitigation of pair-correlated electron simulations Open
An important measure of the development of quantum computing platforms has been the simulation of increasingly complex physical systems [1–3]. Prior to fault-tolerant quantum computing, robust error mitigation strategies are necessary to c…
View article: Overcoming leakage in scalable quantum error correction
Overcoming leakage in scalable quantum error correction Open
Leakage of quantum information out of computational states into higher energy states represents a major challenge in the pursuit of quantum error correction (QEC). In a QEC circuit, leakage builds over time and spreads through multi-qubit …
View article: Non-Abelian braiding of graph vertices in a superconducting processor
Non-Abelian braiding of graph vertices in a superconducting processor Open
Indistinguishability of particles is a fundamental principle of quantum mechanics. For all elementary and quasiparticles observed to date - including fermions, bosons, and Abelian anyons - this principle guarantees that the braiding of ide…
View article: Purification-based quantum error mitigation of pair-correlated electron simulations
Purification-based quantum error mitigation of pair-correlated electron simulations Open
An important measure of the development of quantum computing platforms has been the simulation of increasingly complex physical systems. Prior to fault-tolerant quantum computing, robust error mitigation strategies are necessary to continu…
View article: Readout of a quantum processor with high dynamic range Josephson parametric amplifiers
Readout of a quantum processor with high dynamic range Josephson parametric amplifiers Open
We demonstrate a high dynamic range Josephson parametric amplifier (JPA) in which the active nonlinear element is implemented using an array of rf-SQUIDs. The device is matched to the 50 $Ω$ environment with a Klopfenstein-taper impedance …
View article: Formation of robust bound states of interacting photons
Formation of robust bound states of interacting photons Open
Data and analysis scripts for the manuscript https://arxiv.org/abs/2206.05254
View article: Suppressing quantum errors by scaling a surface code logical qubit
Suppressing quantum errors by scaling a surface code logical qubit Open
Practical quantum computing will require error rates that are well below what is achievable with physical qubits. Quantum error correction offers a path to algorithmically-relevant error rates by encoding logical qubits within many physica…
View article: Noise-resilient Edge Modes on a Chain of Superconducting Qubits
Noise-resilient Edge Modes on a Chain of Superconducting Qubits Open
Inherent symmetry of a quantum system may protect its otherwise fragile states. Leveraging such protection requires testing its robustness against uncontrolled environmental interactions. Using 47 superconducting qubits, we implement the o…
View article: Resolving catastrophic error bursts from cosmic rays in large arrays of superconducting qubits
Resolving catastrophic error bursts from cosmic rays in large arrays of superconducting qubits Open
View article: Realizing topologically ordered states on a quantum processor
Realizing topologically ordered states on a quantum processor Open
Synthesizing topological order Topologically ordered matter exhibits long-range quantum entanglement. However, measuring this entanglement in real materials is extremely tricky. Now, two groups take a different approach and turn to synthet…
View article: Data for "Realizing topologically ordered states on a quantum processor"
Data for "Realizing topologically ordered states on a quantum processor" Open
Data and code used in "Realizing topologically ordered states on a quantum processor," Satzinger et al. (2021), preprint at https://arxiv.org/abs/2104.01180
View article: Exponential suppression of bit or phase errors with cyclic error correction
Exponential suppression of bit or phase errors with cyclic error correction Open
Realizing the potential of quantum computing requires sufficiently low logical error rates 1 . Many applications call for error rates as low as 10 −15 (refs. 2–9 ), but state-of-the-art quantum platforms typically have physical error rates…
View article: Exponential suppression of bit or phase flip errors with repetitive quantum error correction
Exponential suppression of bit or phase flip errors with repetitive quantum error correction Open
Realizing the potential of quantum computing will require achieving sufficiently low logical error rates. Many applications call for error rates in the $10^{-15}$ regime, but state-of-the-art quantum platforms typically have physical error…
View article: Information Scrambling in Computationally Complex Quantum Circuits
Information Scrambling in Computationally Complex Quantum Circuits Open
Interaction in quantum systems can spread initially localized quantum information into the many degrees of freedom of the entire system. Understanding this process, known as quantum scrambling, is the key to resolving various conundrums in…
View article: Accurately computing electronic properties of materials using eigenenergies
Accurately computing electronic properties of materials using eigenenergies Open
A promising approach to study quantum materials is to simulate them on an engineered quantum platform. However, achieving the accuracy needed to outperform classical methods has been an outstanding challenge. Here, using eighteen supercond…