QED effects in molecules: test on rotational quantum states of H2 |
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Authors: | Salumbides E J Dickenson G D Ivanov T I Ubachs W |
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Institution: | Institute for Lasers, Life and Biophotonics Amsterdam, VU University, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands. e.j.salumbides@vu.nl |
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Abstract: | Quantum electrodynamic effects have been systematically tested in the progression of rotational quantum states in the X?1Σ(g)(+), v=0 vibronic ground state of molecular hydrogen. High-precision Doppler-free spectroscopy of the EF?1Σ(g)(+)-X?1Σ(g)(+) (0,0) band was performed with 0.005 cm(-1) accuracy on rotationally hot H2 (with rotational quantum states J up to 16). QED and relativistic contributions to rotational level energies as high as 0.13 cm(-1) are extracted, and are in perfect agreement with recent calculations of QED and high-order relativistic effects for the H2 ground state. |
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