Polarizability of ultracold 
	   molecules in the rovibrational ground state of

Deiß, Markus; Drews, B.; Denschlag, Johannes Hecker; Bouloufa-Maafa, Nadia; Véxiau, Romain; Dulieu, Olivier

doi:10.1088/1367-2630/17/6/065019

Cited by 17 publications

(26 citation statements)

References 49 publications

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“…The FM and the ground-state molecules DDPs are not equal, leading to a limitation in the efficiency of the transfer process. However as shown in our recent paper [38], a ground-state molecule DDP 2.5 greater than the FM one still allows for an acceptable transfer efficiency.…”

Section: Magic Frequenciesmentioning

confidence: 70%

“…A description of our method to obtain the ionic DDPs is given in [38]. Briefly we compare our atomic species (Cs, Rb, K) calculated DDPs to the very accurate atomic determination made by Derevianko et al [117].…”

Section: Molecular Structure Datamentioning

confidence: 99%

“…At this wavelength called "magic wavelength" [35], the ac Stark shifts and so the DDP of the two molecular levels are equal. Only few studies of the DDP have been done on specific molecules like KRb [36], RbCs [36], Cs 2 [37] and Rb 2 [38]. However the large range of species currently considered in experiments requires an extensive study.…”

Section: Introductionmentioning

confidence: 99%

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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: Magic Frequenciesmentioning

confidence: 70%

Section: Molecular Structure Datamentioning

confidence: 99%

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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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“…This allowed Ramsey interferometry between two rotational levels of the molecule with a reasonably long coherence time, and led to a pivotal study of the dipolar spin-coherence time in a 3D optical lattice [22]. More recently, Deiß et al [23,24] have carried out parametric heating experiments on aligned triplet Rb 2 molecules and extracted both isotropic and anisotropic polarizabilities.…”

mentioning

confidence: 99%

ac Stark effect in ultracold polar Rb87Cs133 molecules

et al. 2017

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“…In parallel, optimal trapping conditions for homonuclear Rb 2 and Cs 2 were studied in Refs. [14, 15]. …”

Section: Introductionmentioning

confidence: 99%

Pendular trapping conditions for ultracold polar molecules enforced by external electric fields

Petrov

Makrides

et al. 2017

Phys. Rev. A

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We theoretically investigate trapping conditions for ultracold polar molecules in optical lattices, when external magnetic and electric fields are simultaneously applied. Our results are based on an accurate electronic-structure calculation of the polar 23Na40K polar molecule in its absolute ground state combined with a calculation of its rovibrational-hyperfine motion. We find that an electric field strength of 5.26(15) kV/cm and an angle of 54.7° between this field and the polarization of the optical laser lead to a trapping design for 23Na40K molecules where decoherences due laser-intensity fluctuations and fluctuations in the direction of its polarization are kept to a minimum. One standard deviation systematic and statistical uncertainties are given in parenthesis. Under such conditions pairs of hyperfine-rotational states of v = 0 molecules, used to induce tunable dipole-dipole interactions between them, experience ultrastable, matching trapping forces.

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Polarizability of ultracold molecules in the rovibrational ground state of

Abstract: We study, both theoretically and experimentally, the dynamical polarizability Show more

Cited by 17 publications

References 49 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

ac Stark effect in ultracold polar Rb87Cs133 molecules

Pendular trapping conditions for ultracold polar molecules enforced by external electric fields

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