Comment on “Calculation of accurate permanent dipole moments of the lowest Σ+1,3 states of heteronuclear alkali dimers using extended basis sets” [J. Chem. Phys. <b>122</b>, 204302 (2005)]

Aymar, M; Dulieu, Olivier

doi:10.1063/1.2222354

Cited by 149 publications

(274 citation statements)

References 19 publications

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“…Table I indicates that all the electronic PDMs and TDMs, as well as the experimentally unavailable PECs, are computed in our group using a quantum chemistry approach. These calculations, performed with the socalled CIPSI package, are explained in a previous paper [60,116]. Briefly we model the alkali-atom diatomic molecule as two valence electrons moving in the field exerted by two polarizable ionic cores.…”

Section: Molecular Structure Datamentioning

confidence: 99%

Dynamic dipole polarizabilities of heteronuclear alkali dimers: optical response, trapping and control of ultracold molecules

Véxiau

Borsalino

Lepers

et al. 2017

International Reviews in Physical Chemistry

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In this article we address the general approach for calculating dynamical dipole polarizabilities of small quantum systems, based on a sum-over-states formula involving in principle the entire energy spectrum of the system. We complement this method by a few-parameter model involving a limited number of effective transitions, allowing for a compact and accurate representation of both the isotropic and anisotropic components of the polarizability. We apply the method to the series of ten heteronuclear molecules composed of two of ( 7 Li, 23 Na, 39 K, 87 Rb, 133 Cs) alkali-metal atoms. We rely on both up-to-date spectroscopically-determined potential energy curves for the lowest electronic states, and on our systematic studies of these systems performed during the last decade for higher excited states and for permanent and transition dipole moments. Such a compilation is timely for the continuously growing researches on ultracold polar molecules. Indeed the knowledge of the dynamic dipole polarizabilities is crucial to model the optical response of molecules when trapped in optical lattices, and to determine optimal lattice frequencies ensuring optimal transfer to the absolute ground state of initially weakly-bound molecules. When they exist, we determine the so-called "magic frequencies" where the ac-Stark shift and thus the viewed trap depth, is the same for both weakly-bound and ground-state molecules.

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Section: Molecular Structure Datamentioning

confidence: 99%

Dynamic dipole polarizabilities of heteronuclear alkali dimers: optical response, trapping and control of ultracold molecules

Véxiau

Borsalino

Lepers

et al. 2017

International Reviews in Physical Chemistry

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“…Photoassociation (PA), a long established technique, has been successfully employed in the production of K 2 [6], RbCs [7], Cs 2 [8], and LiCs [9] in the lowest vibrational level of the electronic ground state. In contrast to the homonuclear molecules, heteronuclear alkali dimers exhibit strong dipole moments ranging from 0.6 Debye for LiNa and KRb to 5.5 Debye for LiCs [10]. The formation of these dipolar molecules in their lowest vibrational level opens the way to the exploration of quantum phases in dipolar gases [11,12], the development of quantum computation techniques [13], precision measurements of fundamental constants [14], and the investigation and control of ultracold chemical reactions [15].…”

Section: Introductionmentioning

confidence: 99%

Formation of ultracold dipolar molecules in the lowest vibrational levels by photoassociation

et al. 2009

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We recently reported the formation of ultracold LiCs molecules in the rovibrational ground state et al., PRL 101, 133004 (2008)]. Here we discuss details of the experimental setup and present a thorough analysis of the photoassociation step including the photoassociation line shape. We predict the distribution of produced ground state molecules using accurate potential energy curves combined with an ab-initio dipole transition moment and compare this prediction with experimental ionization spectra. Additionally we improve the value of the dissociation energy for the X 1 Σ + state by high resolution spectroscopy of the vibrational ground state.

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“…Using the Mapped Fourier Grid Hamiltonian (MFGH) method 36 we compute the vibrational wave functions 34 We plot them in Fig. 1(b).…”

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Molecular spectroscopy for ground-state transfer of ultracold RbCs molecules

Debatin

Takekoshi

Rameshan

et al. 2011

Phys. Chem. Chem. Phys.

116

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We perform one-and two-photon high resolution spectroscopy on ultracold samples of RbCs Feshbach molecules with the aim to identify a suitable route for efficient ground-state transfer in the quantum-gas regime to produce quantum gases of dipolar RbCs ground-state molecules. One-photon loss spectroscopy allows us to probe deeply bound rovibrational levels of the mixed excited (A 1 Σ + − b 3 Π 0 ) 0 + molecular states. Two-photon dark state spectroscopy connects the initial Feshbach state to the rovibronic ground state. We determine the binding energy of the lowest rovibrational level |v ′′ = 0, J ′′ = 0 of the X 1 Σ + ground state to be D X 0 = 3811.5755(16) cm −1 , a 300-fold improvement in accuracy with respect to previous data. We are now in the position to perform stimulated two-photon Raman transfer to the rovibronic ground state.

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Comment on “Calculation of accurate permanent dipole moments of the lowest Σ+1,3 states of heteronuclear alkali dimers using extended basis sets” [J. Chem. Phys. 122, 204302 (2005)]

Cited by 149 publications

References 19 publications

Dynamic dipole polarizabilities of heteronuclear alkali dimers: optical response, trapping and control of ultracold molecules

Dynamic dipole polarizabilities of heteronuclear alkali dimers: optical response, trapping and control of ultracold molecules

Formation of ultracold dipolar molecules in the lowest vibrational levels by photoassociation

Molecular spectroscopy for ground-state transfer of ultracold RbCs molecules

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