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 …

Superconducting microwave circuits incorporating nonlinear devices, such as Josephson
junctions, are a leading platform for emerging quantum technologies. Increasing circuit …

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 …

Large scale quantum computing motivates the invention of two-qubit gate schemes that not
only maximize the gate fidelity but also draw minimal resources. In the case of …

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

In this paper, we present an experimentally feasible protocol to generate the cat states in the
microwave resonator coupled to a superconducting qubit. The setup employs a detuned …

Developing Hamiltonian models for quantum processors with many qubits on the same chip
is crucial for advancing quantum computing technologies. Stray couplings between qubits …

An optical unitary converter (OUC) that can convert a set of N mutually orthogonal optical
modes into another set of arbitrary N orthogonal modes is expected to be a key device in …

Parametric converters are parametric amplifiers that mix two spatially separate
nondegenerate modes and are commonly used for amplifying and squeezing microwave …

We demonstrate a transmon-qubit readout based on the nonlinear response to a drive of
polaritonic meters in situ coupled to the qubit. Inside a three-dimensional readout cavity, we …