Initialisation of single spin dressed states using shortcuts to adiabaticity
| Autor: | Johannes Kölbl, Lucas Thiel, Mark Kasperczyk, Aashish A. Clerk, Arne Barfuss, Hugo Ribeiro, Patrick Maletinsky |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Physics
Quantum Physics education.field_of_study Condensed Matter - Mesoscale and Nanoscale Physics Spins Quantum sensor Population General Physics and Astronomy Initialization FOS: Physical sciences Quantum information processing 01 natural sciences Coherent control Quantum mechanics 0103 physical sciences Mesoscale and Nanoscale Physics (cond-mat.mes-hall) 010306 general physics education Adiabatic process Quantum Physics (quant-ph) Coherence (physics) |
| Zdroj: | Physical Review Letters |
| Popis: | We demonstrate the use of shortcuts to adiabaticity protocols for initialisation, readout, and coherent control of dressed states generated by closed-contour, coherent driving of a single spin. Such dressed states have recently been shown to exhibit efficient coherence protection, beyond what their two-level counterparts can offer. Our state transfer protocols yield a transfer fidelity of ~ 99.4(2) % while accelerating the transfer speed by a factor of 2.6 compared to the adiabatic approach. We show bi-directionality of the accelerated state transfer, which we employ for direct dressed state population readout after coherent manipulation in the dressed state manifold. Our results enable direct and efficient access to coherence-protected dressed states of individual spins and thereby offer attractive avenues for applications in quantum information processing or quantum sensing. Comment: 16 pages, 9 figures. Including supplementary material |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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