Two-photon resonant transition in a single atomic spin pair Er-T
ORAL
Abstract
The interaction between radiation and matter involving the absorption or emission of multiple photons underpins various modern technologies, including Raman scattering and harmonic generation. The coherent control of quantum states through two-photon processes facilitates the creation of quantum entanglement [1, 2, 3], a cornerstone of quantum information processing. Despite the significance, the coherent control of such a process in atomic spin qubits remains largely unexplored [4-7]. In this talk, we present our recent experimental results demonstrating the observation of a two-photon process in a pair of Erbium (Er) and Titanium (Ti) spins on a MgO surface. Using pulsed electron spin resonance, we achieve coherent control between the spin states of the Er-Ti pair using two-photon interaction, identifying a novel way for implementation of quantum gates to atomic spin qubits on a surface.
[1] S. Polleto et al., Phys. Rev. Lett 109, 240505 (2012).
[2] A. O. Niskanen et al., Science 316, 723 (2007).
[3] K. N. Nestrov et al., Phys. Rev. X Quantum 2, 0220345 (2021).
[4] Soo-hyon Phark et al., ACS Nano 17, 14144 (2023).
[5] Yu Wang et al., Science 382, 87 (2023).
[6] Stefano Reale et al., Nat Commun 15, 5289 (2024).
[7] Stefano Reale et al., Phys. Rev. B 107, 045427 (2023)
[1] S. Polleto et al., Phys. Rev. Lett 109, 240505 (2012).
[2] A. O. Niskanen et al., Science 316, 723 (2007).
[3] K. N. Nestrov et al., Phys. Rev. X Quantum 2, 0220345 (2021).
[4] Soo-hyon Phark et al., ACS Nano 17, 14144 (2023).
[5] Yu Wang et al., Science 382, 87 (2023).
[6] Stefano Reale et al., Nat Commun 15, 5289 (2024).
[7] Stefano Reale et al., Phys. Rev. B 107, 045427 (2023)
*The authors acknowlege the support from Institue of Basic Science.
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Presenters
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Yaowu Liu
- Center for quantum Nanoscience institute of basic science