Parity-preserving light-matter system mediates effective two-body interactions. (26th May 2017)

• Record Type: Journal Article
• Authors: Kyaw, Thi Ha; Allende, Sebastian; Kwek, Leong-Chuan; Romero, Guillermo
• Is Part Of: Quantum science and technology. Volume 2:Number 2(2017)
• Publication Date: 2017-05-26
• Subjects: quantum information architectures and implementations -- cavity quantum electrodynamics -- quantum computation -- superconducting circuits -- quantum Rabi model; Quantum theory -- Periodicals; Quantum theory; Periodicals; 530
• DOI: 10.1088/2058-9565/aa701c
• Languages: English
• ISSNs: 2058-9565

Abstract

Abstract: We study the equilibrium and non-equilibrium physics of two qubits interacting through an ultrastrong coupled qubit-cavity system. By tuning the qubits energy gap while keeping the ultrastrong coupling system to its ground state, we demonstrate a strong two-qubit interaction as well as an enhanced excitation transfer between the two qubits. Our proposal has twofold implications: a means to attain multipurpose parity-protected quantum information tasks in superconducting circuits and a building block for ultrastrong coupled cavity-enhanced exciton transport in disordered media.