Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

arXiv:2306.13199 · Physical Review X

Microwave Spin Control of a Tin-Vacancy Qubit in Diamond

Eric I. Rosenthal, Christopher P. Anderson, Hannah Calzi Kleidermacher, Abigail Stein, Hope Lee, Jakob Grzesik, Giovanni Scuri, Alison E. Rugar, Daniel Riedel, Shahriar Aghaeimeibodi, Geun Ho Ahn, Kasper Van Gasse, Jelena Vuckovic A

Published Aug 30, 2023• 50 citations
arXivHTMLPDF

Abstract

Use of strain on a tin-vacancy defect in diamond allows for magnetic-field interactions that in turn enable microwave control over its spin, a key step for using such defects to encode quantum information.
DOI
10.1103/physrevx.13.031022

Related papers

Microwave Control of the Tin-Vacancy Spin Qubit in Diamond with a Superconducting Waveguide

Ioannis Karapatzakis, Jeremias Resch, Marcel Schrodin +10 more

Group-IV color centers in diamond are promising candidates for quantum networks due to their dominant zero-phonon line and symmetry-protected optical transitions that connect to coherent spin levels. The negatively charged tin-vacancy (SnV) center possesses long electron spin lifetimes due to its large spin-orbit splitting. However, the magnetic dipole transitions required for microwave spin control are suppressed, and strain is necessary to enable these transitions. Recent work has shown spin control of strained emitters using microwave lines that suffer from Ohmic losses, restricting coherence through heating. We utilize a superconducting coplanar waveguide to measure SnV centers subjected to strain, observing substantial improvement. A detailed analysis of the SnV center electron spin Hamiltonian based on the angle-dependent splitting of the ground and excited states is performed. We demonstrate coherent spin manipulation and obtain a Hahn echo coherence time of up to T 2 = 430 μ s . With dynamical decoupling, we can prolong coherence to T 2 = 10 ms , about a sixfold improvement compared to earlier works. We also observe a nearby coupling C 13 spin, which may serve as a quantum memory, thus substantiating the potential of SnV centers in diamond and demonstrates the benefit of superconducting microwave structures. Published by the American Physical Society 2024

arXiv:2403.00521•Physical Review X•Aug 27, 2024•21 citations

Coherent Microwave Control of a Diamond Tin-Vacancy Spin in a Scalable Platform

D. Andrew Golter, Andrew S. Greenspon, Genevieve Clark +7 more

We demonstrate coherent microwave control of single tin-vacancy spins in diamond waveguides. This control, along with optical spin initialization and readout, long spin coherence times, and our photonic integrated circuit platform, enables scalable quantum networks.

Frontiers in Optics•Jan 1, 2023•0 citations

Optical and microwave control of germanium-vacancy center spins in diamond

Petr Siyushev, Mathias H. Metsch, Aroosa Ijaz +13 more

Novel solid-state qubits have a lot to offer for quantum information processing because of the potential simplicity of engineering quantum computational hardware similar to modern silicon-based electronics. This work presents optical and electron-spin properties of a novel germanium-vacancy defect in diamond. The defect center combines high brightness and exceptional spectral stability with microwave and optical access to electron spin. The combination of a spin-\textonehalf{} qubit and an optical interface makes possible of the germanium-vacancy defect in scalable quantum networks.

arXiv:1612.02947•Physical review. B./Physical review. B•Aug 18, 2017•171 citations

Coherent control of the tin-vacancy spin qubit in diamond

Romain Debroux, Cathryn P. Michaels, Carola M. Purser +12 more

While the tin-vacancy center in diamond (SnV) has demonstrated excellent optical properties [1], spin control has remained elusive. We demonstrate multi-axis control of the SnV spin via an all-optical drive, and use this to demonstrate T2 = 0.30(8) ms.

Quantum Information and Measurement (QIM)•Jan 1, 2021•0 citations

Quantum Control and Waveguide Integration of Diamond Tin-Vacancy Spin Qubits

Hans K. C. Beukers, Christopher Waas, Matteo Pasini +4 more

We show coupling of an SnV center to a diamond waveguide of 20% with almost transform-limited optical transitions. Besides, we show control over the SnV spin qubit and extend its coherence to over a millisecond.

Quantum 2.0 Conference and Exhibition•Jan 1, 2024•1 citation

Investigation of Efficient Microwave Control of Unstrained Negatively Charged Group-IV Color Centers in Diamond

Gregor Pieplow, Mohamed Belhassen, Tim Schröder

This work theoretically investigates the microwave control of group-IV color centers. We find that heavy vacancies such as the tin and lead vacancy can be efficiently controlled without external strain.

•Jan 1, 2024•0 citations
Group-IV color centers in diamond are promising candidates for quantum networks due to their dominant zero-phonon line and symmetry-protected optical transitions that connect to coherent spin levels. The negatively charged tin-vacancy (SnV) center possesses long electron spin lifetimes due to its large spin-orbit splitting. However, the magnetic dipole transitions required for microwave spin control are suppressed, and strain is necessary to enable these transitions. Recent work has shown spin control of strained emitters using microwave lines that suffer from Ohmic losses, restricting coherence through heating. We utilize a superconducting coplanar waveguide to measure SnV centers subjected to strain, observing substantial improvement. A detailed analysis of the SnV center electron spin Hamiltonian based on the angle-dependent splitting of the ground and excited states is performed. We demonstrate coherent spin manipulation and obtain a Hahn echo coherence time of up to T 2 = 430 μ s . With dynamical decoupling, we can prolong coherence to T 2 = 10 ms , about a sixfold improvement compared to earlier works. We also observe a nearby coupling C 13 spin, which may serve as a quantum memory, thus substantiating the potential of SnV centers in diamond and demonstrates the benefit of superconducting microwave structures. Published by the American Physical Society 2024
Novel solid-state qubits have a lot to offer for quantum information processing because of the potential simplicity of engineering quantum computational hardware similar to modern silicon-based electronics. This work presents optical and electron-spin properties of a novel germanium-vacancy defect in diamond. The defect center combines high brightness and exceptional spectral stability with microwave and optical access to electron spin. The combination of a spin-\textonehalf{} qubit and an optical interface makes possible of the germanium-vacancy defect in scalable quantum networks.