Challenges and opportunities in quantum optimization
Quantum computers have demonstrable ability to solve problems at a scale beyond brute-
force classical simulation. Interest in quantum algorithms has developed in many areas …
force classical simulation. Interest in quantum algorithms has developed in many areas …
Quantum computing for high-energy physics: State of the art and challenges
Quantum computers offer an intriguing path for a paradigmatic change of computing in the
natural sciences and beyond, with the potential for achieving a so-called quantum …
natural sciences and beyond, with the potential for achieving a so-called quantum …
Large-scale quantum approximate optimization on nonplanar graphs with machine learning noise mitigation
Quantum computers are increasing in size and quality but are still very noisy. Error
mitigation extends the size of the quantum circuits that noisy devices can meaningfully …
mitigation extends the size of the quantum circuits that noisy devices can meaningfully …
Implementation of Conditional Phase Gates Based on Tunable Interactions
High fidelity two-qubit gates exhibiting low cross talk are essential building blocks for gate-
based quantum information processing. In superconducting circuits, two-qubit gates are …
based quantum information processing. In superconducting circuits, two-qubit gates are …
Building blocks of a flip-chip integrated superconducting quantum processor
We have integrated single and coupled superconducting transmon qubits into flip-chip
modules. Each module consists of two chips—one quantum chip and one control chip—that …
modules. Each module consists of two chips—one quantum chip and one control chip—that …
Quantum optimization: Potential, challenges, and the path forward
Recent advances in quantum computers are demonstrating the ability to solve problems at a
scale beyond brute force classical simulation. As such, a widespread interest in quantum …
scale beyond brute force classical simulation. As such, a widespread interest in quantum …
Simulating lattice gauge theory on a quantum computer
The utility of quantum computers for simulating lattice gauge theories is currently limited by
the noisiness of the physical hardware. Various quantum error mitigation strategies exist to …
the noisiness of the physical hardware. Various quantum error mitigation strategies exist to …
Strong parametric dispersive shifts in a statically decoupled two-qubit cavity QED system
Qubits in cavity quantum electrodynamic (QED) architectures are often operated in the
dispersive regime, in which the operating frequency of the cavity depends on the energy …
dispersive regime, in which the operating frequency of the cavity depends on the energy …
Fast logic with slow qubits: microwave-activated controlled-Z gate on low-frequency fluxoniums
We demonstrate a controlled-Z gate between capacitively coupled fluxonium qubits with
transition frequencies 72.3 and 136.3 MHz. The gate is activated by a 61.6-ns-long pulse at …
transition frequencies 72.3 and 136.3 MHz. The gate is activated by a 61.6-ns-long pulse at …
Two-qutrit quantum algorithms on a programmable superconducting processor
Processing quantum information using quantum three-level systems or qutrits as the
fundamental unit is an alternative to contemporary qubit-based architectures with the …
fundamental unit is an alternative to contemporary qubit-based architectures with the …