Speaker
Description
The strong hyperfine splitting of electronuclear tin-vacancy (SnV) levels in diamond has been shown to allow for optically addressable qubits with long coherence times. In this work we present a model of non-zero nuclear spin SnVs in diamond coupled to a quantised optical mode; the model corresponds to SnVs in photonic crystal cavities or optical cavities made of mirrors, realised in earlier experiments. We use a consistent perturbative treatment to simplify the model to describe all-optical single- and two-qubit manipulations, where the qubit manifold is defined by SnV electronuclear levels. With experimental or ab initio parameters as inputs, we are able to provide time-scale estimates for carrying out such operations. Our work has implications for quantum technological applications of SnV centres as long-lived optical qubits.