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Phase-Variation Ramsey Spectroscopy of the $2^{3} S_{1} \to 2^{3} P_{2}$ Interval in Positronium

D. M. Newson and D. B. Cassidy

Department of Physics and Astronomy, University College London, Gower Street, London, WC1E 6BT, United Kingdom

Precision measurement of the 23S1→23P2 interval in positronium using phase-variation Ramsey spectroscopy

D. M. Newson and D. B. Cassidy

Phys. Rev. A 114 022821 (2026)

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