Schrödinger cat states, quantum superpositions of macroscopically distinct classical states,
are an important resource for quantum communication, quantum metrology and quantum …

By applying a microwave drive to a specially designed Josephson circuit, we have realized
a double-well model system: a Kerr oscillator submitted to a squeezing force. We have …

Quantum tunneling is the phenomenon that makes superconducting circuits “quantum”.
Recently, there has been a renewed interest in using quantum tunneling in phase space of a …

Accelerating computation with quantum resources is limited by the challenges of high-fidelity
control of quantum systems. Reservoir computing presents an attractive alternative, as …

Networks of coupled Kerr parametric oscillators (KPOs) are a leading physical platform for
analog solving of complex optimization problems. These systems are colloquially known as …

A Kerr nonlinear parametric oscillator (KPO) can stabilize a quantum superposition of two
coherent states with opposite phases, which can be used as a qubit. In a universal gate set …

The fragile nature of quantum circuits is a major bottleneck to scalable quantum
applications. Operating at cryogenic temperatures, quantum circuits are highly vulnerable to …

A Kerr-nonlinear parametric oscillator (KPO) can generate a quantum superposition of two
oscillating states, known as a Schrödinger cat state, via quantum adiabatic evolution and …

Kerr cat qubits are a promising candidate for fault-tolerant quantum computers owing to the
biased nature of their errors. The ZZ coupling between the qubits can be utilized for a two …

Kerr parametric oscillators are potential building blocks for fault-tolerant quantum computers.
They can stabilize Kerr-cat qubits, which offer advantages toward the encoding and …