Molecular prototypes for spin-based CNOT quantum gates
F. Luis, A. Repoll\'es, M. J. Mart\'inez-P\'erez, D. Aguil\`a, O., Roubeau, D. Zueco, M. Evangelisti, A. Cam\'on, J. Ses\'e, L. A. Barrios, and, G. Arom\'i
TL;DR
This paper demonstrates that chemically engineered [Tb2] molecular clusters can serve as a platform for implementing universal CNOT quantum gates using spin-based qubits, leveraging structural asymmetry.
Contribution
It introduces a novel molecular design that enables the realization of a CNOT gate with weakly coupled Tb3+ spin qubits through structural asymmetry.
Findings
Structural asymmetry in [Tb2] molecules creates magnetically inequivalent qubits.
The energy spectrum meets conditions for universal CNOT gate implementation.
Potential for scalable quantum computing with molecular spin qubits.
Abstract
We show that a chemically engineered structural asymmetry in [Tb2] molecular clusters renders the two weakly coupled Tb3+ spin qubits magnetically inequivalent. The magnetic energy level spectrum of these molecules meets then all conditions needed to realize a universal CNOT quantum gate.
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