Coherently coupling distinct spin ensembles through a high-Tc superconducting resonator

A. Ghirri; C. Bonizzoni; F. Troiani; N. Buccheri; L. Beverina; A. Cassinese; M. Affronte

doi:10.1103/PhysRevA.93.063855

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Coherently coupling distinct spin ensembles through a high-Tc superconducting resonator

A. Ghirri, C. Bonizzoni, F. Troiani, N. Buccheri, L. Beverina, A. Cassinese, M. Affronte

DOI 10.1103/PhysRevA.93.063855 · Physical Review A

T1

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Abstract

The problem of coupling multiple spin ensembles through cavity photons is revisited by using (3,5-dichloro-4-pyridyl)bis(2,4,6-trichlorophenyl)methyl (PyBTM) organic radicals and a high-Tc superconducting coplanar resonator. An exceptionally strong coupling is obtained and up to three spin ensembles are simultaneously coupled. The ensembles are made physically distinguishable by chemically varying the g factor and by exploiting the inhomogeneities of the applied magnetic field. The coherent mixing of the spin and field modes is demonstrated by the observed multiple anticrossing, along with the simulations performed within the input-output formalism, and quantified by suitable entropic measures.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBCO Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown