Thin Film Lithium Niobate on Diamond (LiNDa) platform for Efficient Spin-Phonon Coupling
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866916735783796736 |
|---|---|
| author | Xu, Zhujing Ding, Sophie Weiyi Cornell, Eliza Mohideen, Salma Yeh, Matthew Kuruma, Kazuhiro Magalhaes, Leticia Shams-Ansari, Amirhassan Pingault, Benjamin Loncar, Marko |
| author_facet | Xu, Zhujing Ding, Sophie Weiyi Cornell, Eliza Mohideen, Salma Yeh, Matthew Kuruma, Kazuhiro Magalhaes, Leticia Shams-Ansari, Amirhassan Pingault, Benjamin Loncar, Marko |
| contents | Negatively charged silicon vacancy (SiV) center in diamonds are leading candidates for solid-state quantum memories that can be controlled using electromagnetic or acoustic waves. The latter are particularly promising due to strong strain response of SiV, enabling large spin-phonon interaction strengths. Indeed, coherent spin control via surface acoustic waves (SAW) has been demonstrated and is essential for developing on-chip phononic quantum networks. However, the absence of piezoelectricity in diamond requires interfacing with a piezoelectric material for efficient transduction and delivery of acoustic waves to spins in diamonds. Here, we demonstrate a heterogeneously integrated phononic platform that combines thin-film lithium niobate (TFLN) with diamond to enable acoustic control of single SiV spins. Additionally, leveraging large SAW-induced strain at the location of SiV, we achieve coherent acoustic control of an electron spin with more than twofold improvement in Rabi frequency compared to the state-of-the-art devices based on aluminum nitride-on-diamond. This work represents a crucial step towards realizing phonon-based quantum information processing systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_08895 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Thin Film Lithium Niobate on Diamond (LiNDa) platform for Efficient Spin-Phonon Coupling Xu, Zhujing Ding, Sophie Weiyi Cornell, Eliza Mohideen, Salma Yeh, Matthew Kuruma, Kazuhiro Magalhaes, Leticia Shams-Ansari, Amirhassan Pingault, Benjamin Loncar, Marko Quantum Physics Negatively charged silicon vacancy (SiV) center in diamonds are leading candidates for solid-state quantum memories that can be controlled using electromagnetic or acoustic waves. The latter are particularly promising due to strong strain response of SiV, enabling large spin-phonon interaction strengths. Indeed, coherent spin control via surface acoustic waves (SAW) has been demonstrated and is essential for developing on-chip phononic quantum networks. However, the absence of piezoelectricity in diamond requires interfacing with a piezoelectric material for efficient transduction and delivery of acoustic waves to spins in diamonds. Here, we demonstrate a heterogeneously integrated phononic platform that combines thin-film lithium niobate (TFLN) with diamond to enable acoustic control of single SiV spins. Additionally, leveraging large SAW-induced strain at the location of SiV, we achieve coherent acoustic control of an electron spin with more than twofold improvement in Rabi frequency compared to the state-of-the-art devices based on aluminum nitride-on-diamond. This work represents a crucial step towards realizing phonon-based quantum information processing systems. |
| title | Thin Film Lithium Niobate on Diamond (LiNDa) platform for Efficient Spin-Phonon Coupling |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2505.08895 |