Observation of resonant monopole-dipole energy transfer between Rydberg atoms and polar molecules

Fuente: arXiv
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Autores principales: Zou, J., Wang, R. R. W., González-Férez, R., Sadeghpour, H. R., Hogan, S. D.
Formato: Preprint
Publicado: 2025
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author Zou, J.
Wang, R. R. W.
González-Férez, R.
Sadeghpour, H. R.
Hogan, S. D.
author_facet Zou, J.
Wang, R. R. W.
González-Férez, R.
Sadeghpour, H. R.
Hogan, S. D.
contents Resonant energy transfer (RET), between equal parity 1s65s$^3\mathrm{S}_1$ and 1s66s$^3\mathrm{S}_1$ Rydberg levels in helium has been observed in low-temperature ($\sim80$ mK) collisions with ammonia molecules which undergo inversion transitions in their X$^1$A$_1$ ground electronic state. This hybrid Rydberg-atom-polar-molecule RET represents a monopole-dipole energy exchange reaction that necessarily requires spatial overlap of the Rydberg-electron and molecular wavefunctions. Calculations, that account explicitly for the charge-dipole interaction between the Rydberg electron and the molecule, provide a quantitative explanation of the observations. Total parity is conserved in the reaction through the mixing of collisional angular momentum in the atom-molecule complex. This work opens opportunities to expand the toolbox for quantum science with charge-dipole-mediated energy exchange in hybrid neutral-atom-polar-molecule platforms.
format Preprint
id arxiv_https___arxiv_org_abs_2509_21582
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Observation of resonant monopole-dipole energy transfer between Rydberg atoms and polar molecules
Zou, J.
Wang, R. R. W.
González-Férez, R.
Sadeghpour, H. R.
Hogan, S. D.
Atomic Physics
Quantum Gases
Quantum Physics
Resonant energy transfer (RET), between equal parity 1s65s$^3\mathrm{S}_1$ and 1s66s$^3\mathrm{S}_1$ Rydberg levels in helium has been observed in low-temperature ($\sim80$ mK) collisions with ammonia molecules which undergo inversion transitions in their X$^1$A$_1$ ground electronic state. This hybrid Rydberg-atom-polar-molecule RET represents a monopole-dipole energy exchange reaction that necessarily requires spatial overlap of the Rydberg-electron and molecular wavefunctions. Calculations, that account explicitly for the charge-dipole interaction between the Rydberg electron and the molecule, provide a quantitative explanation of the observations. Total parity is conserved in the reaction through the mixing of collisional angular momentum in the atom-molecule complex. This work opens opportunities to expand the toolbox for quantum science with charge-dipole-mediated energy exchange in hybrid neutral-atom-polar-molecule platforms.
title Observation of resonant monopole-dipole energy transfer between Rydberg atoms and polar molecules
topic Atomic Physics
Quantum Gases
Quantum Physics
url https://arxiv.org/abs/2509.21582