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We propose and analyze a high-fidelity hot gate for generic spin-resonator systems which allows for coherent spin-spin coupling, in the presence of a thermally populated resonator mode. Our scheme is nonperturbative in the spin-resonator coupling strength, applies to a broad class of physical systems, including, for example, spins coupled to circuit-QED and surface acoustic wave resonators as well as nanomechanical oscillators, and can be implemented readily with state-of-the-art experimental setups. We provide and numerically verify simple expressions for the fidelity of creating maximally entangled states under realistic conditions.

Original languageEnglish
Article number052335
Number of pages26
JournalPhysical Review A: covering atomic, molecular, and optical physics and quantum information
Volume95
Issue number5
DOIs
Publication statusPublished - 2017

ID: 38016444