Platzman, P. M. & Dykman, M. I. Quantum computing with electrons floating on liquid helium. Science 284, 1967–1969 (1999).

Article 

Google Scholar
 

Dykman, M. I., Platzman, P. M. & Seddighrad, P. Qubits with electrons on liquid helium. Phys. Rev. B 67, 155402 (2003).

Article 
ADS 

Google Scholar
 

Schuster, D. I., Fragner, A., Dykman, M. I., Lyon, S. A. & Schoelkopf, R. J. Proposal for manipulating and detecting spin and orbital states of trapped electrons on helium using cavity quantum electrodynamics. Phys. Rev. Lett. 105, 040503 (2010).

Article 
ADS 

Google Scholar
 

Lyon, S. A. Spin-based quantum computing using electrons on liquid helium. Phys. Rev. A 74, 052338 (2006).

Article 
ADS 

Google Scholar
 

Kawakami, E., Chen, J., Benito, M. & Konstantinov, D. Blueprint for quantum computing using electrons on helium. Phys. Rev. Appl. 20, 054022 (2023).

Article 
ADS 

Google Scholar
 

Bradbury, F. R. et al. Efficient clocked electron transfer on superfluid helium. Phys. Rev. Lett. 107, 266803 (2011).

Article 
ADS 

Google Scholar
 

Castoria, K. E. et al. Sensing and control of single trapped electrons above 1 K. Phys. Rev. X 15, 041002 (2025).


Google Scholar
 

Koolstra, G., Yang, G. & Schuster, D. I. Coupling a single electron on superfluid helium to a superconducting resonator. Nat. Commun. 10, 5323 (2019).

Article 
ADS 

Google Scholar
 

Wallraff, A. et al. Strong coupling of a single photon to a superconducting qubit using circuit quantum electrodynamics. Nature 431, 162–167 (2004).

Article 
ADS 

Google Scholar
 

Chiorescu, I. et al. Coherent dynamics of a flux qubit coupled to a harmonic oscillator. Nature 431, 159–162 (2004).

Article 
ADS 

Google Scholar
 

Boca, A. et al. Observation of the vacuum rabi spectrum for one trapped atom. Phys. Rev. Lett. 93, 233603 (2004).

Article 
ADS 

Google Scholar
 

Maunz, P. et al. Normal-mode spectroscopy of a single-bound-atom–cavity system. Phys. Rev. Lett. 94, 033002 (2005).

Article 
ADS 

Google Scholar
 

Samkharadze, N. et al. Strong spin–photon coupling in silicon. Science 359, 1123–1127 (2018).

Article 
ADS 

Google Scholar
 

Mi, X. et al. A coherent spin–photon interface in silicon. Nature 555, 599–603 (2018).

Article 
ADS 

Google Scholar
 

Glasson, P. et al. Observation of dynamical ordering in a confined wigner crystal. Phys. Rev. Lett. 87, 176802 (2001).

Article 
ADS 

Google Scholar
 

Koolstra, G. et al. High-impedance resonators for strong coupling to an electron on helium. Phys. Rev. Appl. 23, 024001 (2025).

Article 
ADS 

Google Scholar
 

Zhou, X. et al. Single electrons on solid neon as a solid-state qubit platform. Nature 605, 46–50 (2022).

Article 
ADS 

Google Scholar
 

Beysengulov, N. ZeroHelilumKit. Zenodo https://doi.org/10.5281/zenodo.19985198 (2026).

Rieger, D. et al. Fano interference in microwave resonator measurements. Phys. Rev. Appl. 20, 014059 (2023).

Article 
ADS 

Google Scholar
 

Sanchez-Mondragon, J. J., Narozhny, N. B. & Eberly, J. H. Theory of spontaneous-emission line shape in an ideal cavity. Phys. Rev. Lett. 51, 550–553 (1983).

Article 
ADS 

Google Scholar
 

Mi, X., Cady, J. V., Zajac, D. M., Deelman, P. W. & Petta, J. R. Strong coupling of a single electron in silicon to a microwave photon. Science 355, 156–158 (2017).

Article 
ADS 

Google Scholar
 

Burkard, G., Gullans, M. J., Mi, X. & Petta, J. R. Superconductor–semiconductor hybrid-circuit quantum electrodynamics. Nat. Rev. Phys. 2, 129–140 (2020).

Article 

Google Scholar
 

Schuster, D. I. et al. ac Stark shift and dephasing of a superconducting qubit strongly coupled to a cavity field. Phys. Rev. Lett. 94, 123602 (2005).

Article 
ADS 

Google Scholar
 

Dykman, M. I., Asban, O., Chen, Q., Jin, D. & Lyon, S. A. Spin dynamics in quantum dots on liquid helium. Phys. Rev. B 107, 035437 (2023).

Article 
ADS 

Google Scholar
 

Rojas-Arias, J. S. et al. Spatial noise correlations beyond nearest neighbors in 28Si/Si-Ge spin qubits. Phys. Rev. Appl. 20, 054024 (2023).

Article 
ADS 

Google Scholar
 

Li, X. et al. Solid neon as a noise-resilient host for electron qubits above 100 mK. Nat. Electron. https://doi.org/10.1038/s41928-026-01613-4 (2026).

Krantz, P. et al. A quantum engineer’s guide to superconducting qubits. Appl. Phys. Rev. 6, 021318 (2019).

Article 
ADS 

Google Scholar
 

Li, J. Room temperature reactive sputtering deposition of titanium nitride with high sheet kinetic inductance. Preprint at https://arxiv.org/abs/2509.14133 (2025).

Frisk Kockum, A., Miranowicz, A., De Liberato, S., Savasta, S. & Nori, F. Ultrastrong coupling between light and matter. Nat. Rev. Phys. 1, 19–40 (2019).

Article 

Google Scholar
 

Yang, G. et al. Coupling an ensemble of electrons on superfluid helium to a superconducting circuit. Phys. Rev. X 6, 011031 (2016).


Google Scholar
 

Mikolas, C. A. et al. Plasmon mode engineering with electrons on helium. Nat. Commun. 16, 4959 (2025).

Article 
ADS 

Google Scholar
 

Koolstra, G. et al. Strong coupling of a microwave photon to an electron on helium. Zenodo https://doi.org/10.5281/zenodo.20086616 (2026).