Collateral coupling between superconducting resonators: Fast and high fidelity generation of qudit-qudit entanglement

Bibliographic Details
Title: Collateral coupling between superconducting resonators: Fast and high fidelity generation of qudit-qudit entanglement
Authors: Rosario, Pedro, Santos, Alan C., Villas-Boas, Celso Jorge, Bachelard, Romain
Source: Phys. Rev. Applied 20, 034036 (2023)
Publication Year: 2023
Collection: Quantum Physics
Subject Terms: Quantum Physics
More Details: Superconducting circuits are highly controllable platforms to manipulate quantum states, which make them particularly promising for quantum information processing. We here show how the existence of a distance-independent interaction between microwave resonators coupled capacitively through a qubit offers a new control parameter toward this goal. This interaction is able to induce an idling point between resonant resonators, and its state-dependent nature allows one to control the flow of information between the resonators. The advantage of this scheme over previous one is demonstrated through the generation of high-fidelity NOON states between the resonators, with a lower number of operations than previous schemes. Beyond superconducting circuits, our proposal could also apply to atomic lattices with clock transitions in optical cavities, for example.
Document Type: Working Paper
DOI: 10.1103/PhysRevApplied.20.034036
Access URL: http://arxiv.org/abs/2305.03564
Accession Number: edsarx.2305.03564
Database: arXiv
More Details
DOI:10.1103/PhysRevApplied.20.034036