High-Resolution Photoassociation Spectroscopy of Ultracold Ytterbium Atoms by Using the Intercombination Transition

Tojo, Satoshi; Kitagawa, M.; Enomoto, Kazuki; Kato, Yutaka; Takasu, Yoshio; Kumakura, M.; Takahashi, Yoshiro

doi:10.1103/physrevlett.96.153201

Cited by 69 publications

(78 citation statements)

References 30 publications

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“…We used the experimental data obtained by Tojo et al [13] to find the parameters needed to describe V 0 (r) for the 0 + u state. As described in Ref.…”

Section: Experimental Datamentioning

confidence: 99%

“…As described in Ref. [13], Yb atoms were decelerated by a Zeeman-slowing laser for the 1 S 0 -1 P 1 transition, and were collected in a magneto-optical trap (MOT) with a laser for the 1 S 0 -3 P 1 transition. After the compression of the MOT, the atoms were transferred into a crossed optical trap with laser beams at 532 nm.…”

Section: Experimental Datamentioning

confidence: 99%

“…Quantum degenerate gases have been obtained for the bosonic isotopes 174 Yb [8], 170 Yb [9], and 176 Yb [10], and the fermionic isotopes 171 Yb and 173 Yb [11]. Photoassociation spectroscopy has been carried out for bosons [12,13] as well as fermions [14]. A two-color photoassociation experiment has allowed a precise determination of the ground state s-wave scattering lengths for all combinations of Yb isotopes [15].…”

Section: Introductionmentioning

confidence: 99%

“…We take advantage of the experimental photoassociation spectra for 174 Yb 2 and 176 Yb 2 from Tojo et al [13] to precisely determine the binding energies of excited state molecular energy levels. In addition, we report new measurements of the binding energies of excited 170 Yb 2 and 172 Yb 2 .…”

Section: Introductionmentioning

confidence: 99%

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Line shapes of optical Feshbach resonances near the intercombination transition of bosonic ytterbium

Borkowski¹,

Ciuryło²,

Julienne

et al. 2009

Phys. Rev. A

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The properties of bosonic Ytterbium photoassociation spectra near the intercombination transition 1 S0-3 P1 are studied theoretically at ultra low temperatures. We demonstrate how the shapes and intensities of rotational components of optical Feshbach resonances are affected by mass tuning of the scattering properties of the two colliding ground state atoms. Particular attention is given to the relationship between the magnitude of the scattering length and the occurrence of shape resonances in higher partial waves of the van der Waals system. We develop a mass scaled model of the excited state potential that represents the experimental data for different isotopes. The shape of the rotational photoassociation spectrum for various bosonic Yb isotopes can be qualitatively different.

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“…We used the experimental data obtained by Tojo et al [13] to find the parameters needed to describe V 0 (r) for the 0 + u state. As described in Ref.…”

Section: Experimental Datamentioning

confidence: 99%

Section: Experimental Datamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Line shapes of optical Feshbach resonances near the intercombination transition of bosonic ytterbium

Borkowski¹,

Ciuryło²,

Julienne

et al. 2009

Phys. Rev. A

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“…Photoassociation, the process of associating pairs of colliding atoms into excited bound states by making them absorb a resonant photon, appears as the best tool to characterize and control these interactions. Indeed, photoassociation can be used as a spectroscopic tool to measure energy levels in excited molecular states [5,6,7] and characterize ground-state atomic interactions [8]. It can also be regarded as an optical Feshbach resonance [9], analogous to magnetic Feshbach resonances in alkali systems, making it possible to alter these interactions [10].…”

Section: Introductionmentioning

confidence: 99%

Optical Feshbach resonances of alkaline-earth-metal atoms in a one- or two-dimensional optical lattice

Naidon

Julienne

2006

Phys. Rev. A

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Motivated by a recent experiment by Zelevinsky et al. [Phys. Rev. Lett. 96, 203201], we present the theory for photoassociation and optical Feshbach resonances of atoms confined in a tight one-dimensional (1D) or two-dimensional (2D) optical lattice. In the case of an alkaline-earth intercombination resonance, the narrow natural width of the line makes it possible to observe clear manifestations of the dimensionality, as well as some sensitivity to the scattering length of the atoms. Among possible applications, a 2D lattice may be used to increase the spectroscopic resolution by about one order of magnitude. Furthermore, a 1D lattice induces a shift which provides a new way of determining the strength of a resonance by spectroscopic measurements.

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Modeling the electronic structures of the ground and excited states of the ytterbium atom and the ytterbium dimer: A modern quantum chemistry perspective

Tecmer

Boguslawski

Borkowski

et al. 2019

Int J of Quantum Chemistry

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We present a comprehensive theoretical study of the electronic structures of the Yb atom and the Yb 2 molecule, respectively, focusing on their ground and lowest-lying electronically excited states. Our study includes various state-of-the-art quantum chemistry methods such as CCSD, CCSD(T), CASPT2 (including spin-orbit coupling), and EOM-CCSD as well as some recently developed pCCD-based approaches and their extensions to target excited states. Specifically, we scan the lowest-lying potential energy surfaces of the Yb 2 dimer and provide a reliable benchmark set of spectroscopic parameters including optimal bond lengths, vibrational frequencies, potential energy depths, and adiabatic excitation energies. Our in-depth analysis unravels the complex nature of the electronic spectrum of Yb 2 , which is difficult to model accurately by any conventional quantum chemistry method. Finally, we scrutinize the biexcited character of the first 1 Σ + g excited state and its evolution along the potential energy surface. K E Y W O R D S relativistic effects, electron corellation effects, spin-orbit coupling, equation of motion coupled cluster, CASPT2 | INTRODUCTIONThe divalent ytterbium atom has in recent years garnered significant attention thanks to its many uses in cold atom physics. It has a nonmagnetic 1 S 0 ground state and several useful optical transitions: the strong 1 S 0 $ 1 P 1 line can be used for Zeeman slowing, whereas the narrow (181 kHz) intercombination 1 S 0 $ 3 P 1 line can be used to directly laser cool Yb atoms to microkelvin temperatures. [1] Yb has seven stable isotopes: two fermions (171 and 173 with nuclear spins of 1/2 and 5/2, respectively) and five bosons (168, 170, 172, 174, and 176) that lack nuclear spin. The rich isotope structure makes it possible to mass-tune the atomic interactions [2] and facilitates a wide array of possible quantum-degenerate gases. [3][4][5][6] The doubly forbidden 1 S 0 $ 3 P 0 transition lies at the heart of optical atomic clocks [7] that are among the most precise physical instruments known to mankind. For example, an ytterbium clock has recently been demonstrated to enable geopotential measurements with an accuracy below a centimeter. [8] The long-lived 3 P 0 clock states also find use in quantum simulations using Yb atoms. [9] The long-range interactions in the Yb dimer have been probed extensively by high-resolution photoassociation spectroscopy (PAS) [10] near the narrow 1 S 0 $ 3 P 1 intercombination line. The excited 1 S 0 + 3 P 1 (0 + u ) [11,12] state has been probed by single color PAS and provided the van der Waals C 6 coefficient and an improved value of the atomic 3 P 1 lifetime. Two-color PAS of ground state 0 + g vibrational levels [2,13] delivered accurate

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High-Resolution Photoassociation Spectroscopy of Ultracold Ytterbium Atoms by Using the Intercombination Transition

Cited by 69 publications

References 30 publications

Line shapes of optical Feshbach resonances near the intercombination transition of bosonic ytterbium

Line shapes of optical Feshbach resonances near the intercombination transition of bosonic ytterbium

Optical Feshbach resonances of alkaline-earth-metal atoms in a one- or two-dimensional optical lattice

Modeling the electronic structures of the ground and excited states of the ytterbium atom and the ytterbium dimer: A modern quantum chemistry perspective

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