Will spin-relaxation times in molecular magnets permit quantum information processing?

Abstract

Using X-band pulsed electron spin resonance, we report the intrinsic spin-lattice ($T_1$) and phase coherence ($T_2$) relaxation times in molecular nanomagnets for the first time. In Cr${}_{7}M$ heterometallic wheels, with $M$ = Ni and Mn, phase coherence relaxation is dominated by the coupling of the electron spin to protons within the molecule. In deuterated samples $T_2$ reaches 3 $\mu$s at low temperatures, which is several orders of magnitude longer than the duration of spin manipulations, satisfying a prerequisite for the deployment of molecular nanomagnets in quantum information applications.

4 pages, 3 figures, in press at Physical Review Letters

References in corpus (1)

• Bang-bang control of fullerene qubits using ultra-fast phase gates

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