Circuit quantum electrodynamics

A Blais, AL Grimsmo, SM Girvin, A Wallraff - Reviews of Modern Physics, 2021 - APS
Quantum-mechanical effects at the macroscopic level were first explored in Josephson-
junction-based superconducting circuits in the 1980s. In recent decades, the emergence of …

Energy dynamics, heat production and heat–work conversion with qubits: toward the development of quantum machines

L Arrachea - Reports on Progress in Physics, 2023 - iopscience.iop.org
We present an overview of recent advances in the study of energy dynamics and
mechanisms for energy conversion in qubit systems with special focus on realizations in …

Superconducting-qubit readout via low-backaction electro-optic transduction

RD Delaney, MD Urmey, S Mittal, BM Brubaker… - Nature, 2022 - nature.com
Entangling microwave-frequency superconducting quantum processors through optical light
at ambient temperature would enable means of secure communication and distributed …

New material platform for superconducting transmon qubits with coherence times exceeding 0.3 milliseconds

APM Place, LVH Rodgers, P Mundada… - Nature …, 2021 - nature.com
The superconducting transmon qubit is a leading platform for quantum computing and
quantum science. Building large, useful quantum systems based on transmon qubits will …

Fast universal control of an oscillator with weak dispersive coupling to a qubit

A Eickbusch, V Sivak, AZ Ding, SS Elder, SR Jha… - Nature Physics, 2022 - nature.com
Full manipulation of a quantum system requires controlled evolution generated by nonlinear
interactions, which is coherent when the rate of nonlinearity is large compared with the rate …

Quantum error correction of a qubit encoded in grid states of an oscillator

P Campagne-Ibarcq, A Eickbusch, S Touzard… - Nature, 2020 - nature.com
The accuracy of logical operations on quantum bits (qubits) must be improved for quantum
computers to outperform classical ones in useful tasks. One method to achieve this is …

Exponential suppression of bit-flips in a qubit encoded in an oscillator

R Lescanne, M Villiers, T Peronnin, A Sarlette… - Nature Physics, 2020 - nature.com
A quantum system interacts with its environment—if ever so slightly—no matter how much
care is put into isolating it. Therefore, quantum bits undergo errors, putting dauntingly difficult …

Practical quantum error correction with the XZZX code and Kerr-cat qubits

AS Darmawan, BJ Brown, AL Grimsmo, DK Tuckett… - PRX Quantum, 2021 - APS
The development of robust architectures capable of large-scale fault-tolerant quantum
computation should consider both their quantum error-correcting codes and the underlying …

Repetition cat qubits for fault-tolerant quantum computation

J Guillaud, M Mirrahimi - Physical Review X, 2019 - APS
We present a 1D repetition code based on the so-called cat qubits as a viable approach
toward hardware-efficient universal and fault-tolerant quantum computation. The cat qubits …

Quantum error correction with the Gottesman-Kitaev-Preskill code

AL Grimsmo, S Puri - PRX Quantum, 2021 - APS
The Gottesman-Kitaev-Preskill (GKP) code was proposed in 2001 by Daniel Gottesman,
Alexei Kitaev, and John Preskill as a way to encode a qubit in an oscillator. The GKP …