Direct observation of swap cooling in atom-ion collisions

Mahdian, Amir; Krükow, Artjom; Denschlag, Johannes Hecker

doi:10.48550/arxiv.2012.07759

Cited by 2 publications

(2 citation statements)

References 24 publications

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“…Therefore, energy spectroscopy of product ions could reveal information about the binding length of initial long-range atom-ion Rydberg molecules. Such energy spectroscopy may be carried out, e.g., by employing an ion trap [35] or by making use of time of flight techniques [36][37][38].…”

Section: Detection By Photoionizationmentioning

confidence: 99%

Long-Range Atom–Ion Rydberg Molecule: A Novel Molecular Binding Mechanism

Deiß¹,

Haze²,

Denschlag³

2021

Atoms

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We present a novel binding mechanism where a neutral Rydberg atom and an atomic ion form a molecular bound state at a large internuclear distance. The binding mechanism is based on Stark shifts and level crossings that are induced in the Rydberg atom due to the electric field of the ion. At particular internuclear distances between the Rydberg atom and the ion, potential wells occur that can hold atom–ion molecular bound states. Apart from the binding mechanism, we describe important properties of the long-range atom–ion Rydberg molecule, such as its lifetime and decay paths, its vibrational and rotational structure, and its large dipole moment. Furthermore, we discuss methods of how to produce and detect it. The unusual properties of the long-range atom–ion Rydberg molecule give rise to interesting prospects for studies of wave packet dynamics in engineered potential energy landscapes.

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Section: Detection By Photoionizationmentioning

confidence: 99%

Long-Range Atom–Ion Rydberg Molecule: A Novel Molecular Binding Mechanism

Deiß¹,

Haze²,

Denschlag³

2021

Atoms

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“…These systems enable to explore cold reactions as ions can be laser-cooled near their motional ground state and atoms to temperatures below µK. Various inelastic processes were studied with these systems including spin-exchange [12][13][14][15], spin relaxation [16,17], chargeexchange [18][19][20][21][22][23][24], molecular association and dissociation [25,26], as well as elastic processes [27,28] and nonequilibrium open-system dynamics [29][30][31][32]. While hybrid atom-ion systems provide exquisite control over the physical state of both atom and ion, the necessary degree of control in their preparation and detection often severely limits the range of investigated atomic and molecular species as well as the internal states involved.…”

Section: Introductionmentioning

confidence: 99%

Quantum-Logic Detection of Chemical Reactions

Katz,

Pinkas,

Akerman

et al. 2021

Preprint

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Studies of chemical reactions by a single pair of atoms in a well defined quantum state constitute a corner stone in quantum chemistry. Yet, the number of demonstrated techniques which enable observation and control of a single chemical reaction is handful. Here we propose and demonstrate a new technique to study chemical reactions between an ultracold neutral atom and a cold ion using quantum logic. We experimentally study the release of hyperfine energy in a reaction between an ultracold rubidium atom and isotopes of singly ionized strontium for which we do not have experimental control. We detect the reaction outcome and measure the reaction rate of the chemistry ion by reading the motional state of a logic ion via quantum logic, in a single shot. Our work opens new avenues and extends the toolbox of studying chemical reactions, with existing experimental tools, for all atomic and molecular ions in which direct laser cooling and state detection are unavailable.

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Direct observation of swap cooling in atom-ion collisions

Cited by 2 publications

References 24 publications

Long-Range Atom–Ion Rydberg Molecule: A Novel Molecular Binding Mechanism

Long-Range Atom–Ion Rydberg Molecule: A Novel Molecular Binding Mechanism

Quantum-Logic Detection of Chemical Reactions

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