title: Solid-state spin-photon quantum interface without spin-orbit coupling.
abstract: We show that coherent optical manipulation of a single confined spin is possible even in the absence of spin-orbit coupling. To this end, we consider the non-Markovian dynamics of a single valence orbital hole spin that has optically induced spin-exchange coupling to a low-temperature partially polarized electron gas. We show that the fermionic nature of the reservoir induces a coherent component to the hole spin dynamics that does not generate entanglement with the reservoir modes. We analyze in detail the competition of this reservoir-assisted coherent contribution with dissipative components displaying markedly different behavior at different time scales and determine the fidelity of optically controlled spin rotations.
authors.affiliation: Institute for Quantum Electronics, ETH-Zürich, CH-8093 Zürich, Switzerland.
authors.forename: Martin
authors.initials: M
authors.lastname: Claassen
authors.forename: Hakan E
authors.initials: HE
authors.lastname: Türeci
authors.forename: Atac
authors.initials: A
authors.lastname: Imamoğlu