Flux-biased loops including one or more Josephson junctions are ubiquitous elements in
quantum information experiments based on superconducting circuits. These quantum …

With its rich dynamics, the quantum harmonic oscillator is an innate platform for
understanding real-world quantum systems and could even excel as the heart of a quantum …

We present a systematic method to design arbitrary energy-phase relations using parallel
arms of two series Josephson tunnel junctions each. Our approach employs Fourier …

We report measurements of the current-phase relation of two voltage-controlled
semiconductor-superconductor hybrid Josephson junctions (JJs) in series. The two hybrid …

Gatemon qubits are the electrically tunable cousins of superconducting transmon qubits. In
this work, we demonstrate the full coherent control of a gatemon qubit based on hole carriers …

Motivated by recent experimental observations carried out in superconducting transmon
circuits, we compare two different charging protocols for three-level quantum batteries based …

The development of quantum computing hardware is facing the challenge that current-day
quantum processors, comprising 50–100 qubits, already operate outside the range of …

A major challenge for scaling up superconducting quantum computers is unwanted
couplings between qubits, which lead to always-on ZZ couplings that impact gate fidelities …

In a Josephson junction, the current phase relation relates the phase variation of the
superconducting order parameter φ, between the two superconducting leads connected …

Perception of voice means acoustic electric conversion in the auditory system, and changes
of external magnetic field can affect the neural activities by taming the channel current via …