Table 1 Spin number and mean cavity photon number for the main transition of VOPc.

From: Coherent coupling between Vanadyl Phthalocyanine spin ensemble and microwave photons: towards integration of molecular spin qubits into quantum circuits

Sample

N 0,sim (spin)

Ω S,fit (Hz)

n p

#1

(6.4 ± 0.9) ∙ 1017

0.05 ± 0.01

≤6.4 ∙ 109

#2

(6.4 ± 1.1) ∙ 1017

0.04 ± 0.01

≤4.8 ∙ 109

#3

(7.1 ± 1.1) ∙ 1017

0.04 ± 0.01

≤1.6 ∙ 109

#4

(2.6 ± 0.8) ∙ 1017

0.07 ± 0.01

≤8.3 ∙ 1011

  1. The maximum number of spins coupled to the resonator (N 0,sim) and the values of single spin coupling (ΩS) obtained respectively from the electromagnetic simulations and from the fitting of Ω-vs-T  dependence (Supplementary Information) are reported. The last column reports the mean cavity photon number for the maximum input power used for each sample.
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