Lattice hamiltonians and stray interactions within quantum processors

X Xu, Manabputra, C Vignes, MH Ansari… - Physical Review Applied, 2024 - APS
Developing Hamiltonian models for quantum processors with many qubits on the same chip
is crucial for advancing quantum computing technologies. Stray couplings between qubits …

Toolbox for nonreciprocal dispersive models in circuit quantum electrodynamics

L Labarca, O Benhayoune-Khadraoui, A Blais… - Physical Review …, 2024 - APS
We provide a systematic method for constructing effective dispersive Lindblad master
equations to describe weakly anharmonic superconducting circuits coupled by a generic …

Flux-charge symmetric theory of superconducting circuits

A Osborne, A Lucas - Physical Review B, 2024 - APS
The quantum mechanics of superconducting circuits is derived by starting from a classical
Hamiltonian dynamical system describing a dissipationless circuit, usually made of …

High-Fidelity Two-Qubit Gates between Fluxonium Qubits with a Resonator Coupler

EL Rosenfeld, CT Hann, DI Schuster, MH Matheny… - PRX Quantum, 2024 - APS
We take a bottom-up first-principles approach to designing a two-qubit gate between
fluxonium qubits for minimal error, speed, and control simplicity. Our proposed architecture …

Two-port quantum model of finite-length transmission lines coupled to lumped circuits

C Forestiere, G Miano - Physical Review A, 2024 - APS
We show that, in the framework of quantum circuit electrodynamics in the Heisenberg
picture, a finite-length transmission line can be described as a two-port lumped element of …

Stochastic theory of nonlinear electrical circuits in thermal equilibrium

A Osborne, A Lucas - arXiv preprint arXiv:2406.11796, 2024 - arxiv.org
We revisit the theory of dissipative mechanics in RLC circuits, allowing for circuit elements to
have nonlinear constitutive relations, and for the circuit to have arbitrary topology. We …

Least Action Approach to Lumped Element Circuit Mechanics

AMY Osborne - 2024 - search.proquest.com
In the endeavor to design and implement useful quantum computers, various platforms have
seen varying levels of success, and the route to the era of fully scalable quantum computing …