Encoding quantum information into a set of harmonic oscillators is considered a hardware
efficient approach to mitigate noise for reliable quantum information processing. Various …

Recently, the Josephson diode effect (JDE), in which the superconducting critical current
magnitudes differ when the currents flow in opposite directions, has attracted great interest …

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 …

We review some of the recent efforts in devising and engineering bosonic qubits for
superconducting devices, with emphasis on the Gottesman–Kitaev–Preskill (GKP) qubit. We …

We propose an experimentally feasible dissipative spin-wave diode comprising two
magnetic layers coupled via a nonmagnetic spacer. We theoretically demonstrate that the …

Cat states and Gottesman-Kitaev-Preskill (GKP) states play a key role in quantum
computation and communication with continuous variables. The creation of such states …

Approaches to developing large-scale superconducting quantum processors must cope with
the numerous microscopic degrees of freedom that are ubiquitous in solid-state devices …

Encoding logical quantum information in harmonic oscillator modes is a promising and
hardware-efficient approach to the realization of a quantum computer. In this work, we …

The theory of circuit quantum electrodynamics has successfully analyzed superconducting
circuits on the basis of the classical Lagrangian, and the corresponding quantized …

Protected qubits such as the 0-π qubit, and bosonic qubits including cat qubits and
Gottesman-Kitaev-Preskill (GKP) qubits offer advantages for fault tolerance. Some of these …