Spin qubits in carbon nanotubes

Spin qubits hosted in carbon nanotubes is a promising scalable platform for high fidelity qubits. Carbon nanotubes can be interfaced with on-chip microwave circuits [1] and the electronic spin of a double quantum dots coupled to microwave photon [2,3,4,5]. I will present the decoherence mechanisms associated to the hybrid charge-spin spectrum [6] and give their estimation in the case of suspended carbon nanotubes.

[1] T. Cubaynes et al., Appl. Phys. Lett.  (2020)

[2] J.J Viennot et al., Science (2015)

[3] T. Cubaynes et al, NJP Quantum Inf (2019)

[4]  F. Borjans et al, Nature (2020)

[5] P.H. Collard et al,  arXiv:2108.01206 (2021)

[6] M. Beniot et al, Phys. Rev B (2019)