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Polyatomic trilobite Rydberg molecules in a dense gas

Perttu Luukko, Jan Michael Rost

Aug 11, 20170 citations

Cs Trilobite Molecules and Rydberg Atom Interactions

Donald W. Booth, Jonathan Tallant, Patrick Zabawa +2 more

Bulletin of the American Physical SocietyJun 4, 20130 citations

Mapping trilobite state signatures in atomic hydrogen

Jesús Pérez‐Ríos, Matthew T. Eiles, Chris H. Greene

Abstract A few-body approach relying on static line broadening theory is developed to treat the spectroscopy of a single Rydberg excitation to a trilobite-like state immersed in a high density ultracold medium. The present theoretical framework implements the recently developed compact treatment of polyatomic Rydberg molecules, allowing for an accurate treatment of a large number of perturbers within the Rydberg orbit. This system exhibits two unique spectral signatures: its lineshape depends on the Rydberg quantum number n but, strikingly, is independent of the density of the medium, and it is characterized by sharply peaked features reflecting the oscillatory structure of the potential energy landscape.Abstract A few-body approach relying on static line broadening theory is developed to treat the spectroscopy of a single Rydberg excitation to a trilobite-like state immersed in a high density ultracold medium. The present theoretical framework implements the recently developed compact treatment of polyatomic Rydberg molecules, allowing for an accurate treatment of a large number of perturbers within the Rydberg orbit. This system exhibits two unique spectral signatures: its lineshape depends on the Rydberg quantum number n but, strikingly, is independent of the density of the medium, and it is characterized by sharply peaked features reflecting the oscillatory structure of the potential energy landscape.

arXiv:1603.02990Journal of Physics B Atomic Molecular and Optical PhysicsJun 20, 201621 citations

Trilobite Molecules Measured

Marric Stephens

Rydberg atom is one with a highly excited electron, and this electron can interact with a second atom in its ground state to form a weakly bound Rydberg molecule.One example of such a bound state is a "trilobite Rydberg molecule," so-called because the electron's probability distribution resembles the long-extinct sea creature.Markus Exner at the Technical University of Kaiserslautern, Germany, and colleagues have now obtained high-resolution measurements of the vibrational spectra of trilobite Rydberg molecules formed from pairs of rubidium atoms [1].The results offer a rigorous test of theoretical models.Rydberg atom is one with a highly excited electron, and this electron can interact with a second atom in its ground state to form a weakly bound Rydberg molecule.One example of such a bound state is a "trilobite Rydberg molecule," so-called because the electron's probability distribution resembles the long-extinct sea creature.Markus Exner at the Technical University of Kaiserslautern, Germany, and colleagues have now obtained high-resolution measurements of the vibrational spectra of trilobite Rydberg molecules formed from pairs of rubidium atoms [1].The results offer a rigorous test of theoretical models.

PhysicsJun 4, 20250 citations

Coherent excitation of Rydberg atoms in an ultracold gas

Johannes Deiglmayr, M. Reetz‐Lamour, Thomas Amthor +3 more

Optics CommunicationsJun 16, 200674 citations

Polyatomic Trilobite Rydberg Molecules in a Dense Random Gas

Perttu Luukko, Jan Michael Rost

Trilobites are exotic giant dimers with enormous dipole moments. They consist of a Rydberg atom and a distant ground-state atom bound together by short-range electron-neutral attraction. We show that highly polar, polyatomic trilobite states unexpectedly persist and thrive in a dense ultracold gas of randomly positioned atoms. This is caused by perturbation-induced quantum scarring and the localization of electron density on randomly occurring atom clusters. At certain densities these states also mix with an s state, overcoming selection rules that hinder the photoassociation of ordinary trilobites.Trilobites are exotic giant dimers with enormous dipole moments. They consist of a Rydberg atom and a distant ground-state atom bound together by short-range electron-neutral attraction. We show that highly polar, polyatomic trilobite states unexpectedly persist and thrive in a dense ultracold gas of randomly positioned atoms. This is caused by perturbation-induced quantum scarring and the localization of electron density on randomly occurring atom clusters. At certain densities these states also mix with an s state, overcoming selection rules that hinder the photoassociation of ordinary trilobites.

arXiv:1708.03503Physical Review LettersNov 14, 201725 citations

Excitation of ultracold molecules to trilobite-like Rydberg states

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