Dark State Adiabatic Passage with spin-one particles

Abstract

Adiabatic transport of information is a widely invoked resource in connection with quantum information processing and distribution. The study of adiabatic transport via spin-half chains or clusters is standard in the literature, while in practice the true realisation of a completely isolated two-level quantum system is not achievable. We explore here, theoretically, the extension of spin-half chain models to higher spins. Considering arrangements of three spin-one particles, we show that adiabatic transport, specifically a generalisation of the Dark State Adiabatic Passage procedure, is applicable to spin-one systems. We thus demonstrate a qutrit state transfer protocol. We discuss possible ways to physically implement this protocol, considering quantum dot and nitrogen-vacancy implementations.

8 pages, 6 figures (some in colour), comments welcome

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• Spin entangled state transfer in quantum dot arrays: Coherent adiabatic and speed-up protocols
• Fast long-range state transfer in quantum dot arrays via shortcuts to adiabaticity
• Robust Multiple-Range Coherent Quantum State Transfer
• Dark state adiabatic passage with branched networks and high-spin systems: spin separation and entanglement
• Adiabatic state distribution using anti-ferromagnetic spin systems