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 …

In the past 20 years, impressive progress has been made both experimentally and
theoretically in superconducting quantum circuits, which provide a platform for manipulating …

We describe and implement a family of entangling gates activated by radio-frequency flux
modulation applied to a tunable transmon that is statically coupled to a neighboring …

We have realized a new interaction between superconducting qubits and a readout cavity
that results in the displacement of a coherent state in the cavity, conditioned on the state of …

Spin qubits in silicon and germanium quantum dots are promising platforms for quantum
computing, but entangling spin qubits over micrometer distances remains a critical …

The goal of this article is to review the progress of three-electron spin qubits from their
inception to the state of the art. We direct the main focus towards the exchange-only qubit …

Here we describe how, utilizing a time-dependent optomechanical interaction, a mechanical
probe can provide an amplified measurement of the virtual photons dressing the quantum …

Building a scalable quantum computer requires developing appropriate models to
understand and verify its complex quantum dynamics. We focus on superconducting …

We develop a quantum theory describing the input–output properties of Josephson traveling
wave parametric amplifiers. This allows us to show how such a device can be used as a …

Coupling qubits to a superconducting resonator provides a mechanism to enable long-
distance entangling operations in a quantum computer based on spins in semiconducting …