Dressing the Orbital Feshbach Resonance using single-manifold Raman scheme

Han, Zhen; Deng, Tian-Shu

doi:10.48550/arxiv.1808.07578

Cited by 1 publication

(1 citation statement)

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“…We also demonstrated that the molecular internal degree of freedom can be controlled exploiting Raman transitions that swap between different nuclear spin states of the 1 S 0 atom forming the molecule. We show that also this process can be driven coherently, allowing us to cycle between molecular states with different groundstate component and providing a very powerful manipulation tool, which could also be exploited for the optical tuning of an optical Feshbach resonance [63]. Moreover, we showed that this manipulation scheme can also be used as a detection tool for orbital molecules, which are characterized by an extremely shallow binding energy that causes the usual detection methods of Feshbach molecules of alkaline atoms to be unusable.…”

Section: Discussionmentioning

confidence: 97%

Coherent Manipulation of Orbital Feshbach Molecules of Two-Electron Atoms

et al. 2019

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Ultracold molecules have experienced increasing attention in recent years. Compared to ultracold atoms, they possess several unique properties that make them perfect candidates for the implementation of new quantum-technological applications in several fields, from quantum simulation to quantum sensing and metrology. In particular, ultracold molecules of two-electron atoms (such as strontium or ytterbium) also inherit the peculiar properties of these atomic species, above all the possibility to access metastable electronic states via direct excitation on optical clock transitions with ultimate sensitivity and accuracy.In this paper we report on the production and coherent manipulation of molecular bound states of two fermionic 173 Yb atoms in different electronic (orbital) states 1 S0 and 3 P0 in proximity of a scattering resonance involving atoms in different spin and electronic states, called orbital Feshbach resonance. We demonstrate that orbital molecules can be coherently photoassociated starting from a gas of ground-state atoms in a three-dimensional optical lattices by observing several photoassociation and photodissociation cycles. We also show the possibility to coherently control the molecular internal state by using Raman-assisted transfer to swap the nuclear spin of one of the atoms forming the molecule, thus demonstrating a powerful manipulation and detection tool of these molecular bound states. Finally, by exploiting this peculiar detection technique we provide first information on the lifetime of the molecular states in a many-body setting, paving the way towards future investigations of strongly interacting Fermi gases in a still unexplored regime.

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Section: Discussionmentioning

confidence: 97%