Optical pumping of rubidium atoms frozen in solid argon

Kanagin, Andrew N.; Regmi, Sameer K.; Pathak, Pawan; Weinstein, Jonathan D.

doi:10.1103/physreva.88.063404

Cited by 15 publications

(14 citation statements)

References 20 publications

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“…Electron spin resonance spectroscopy (see, for example, [40]) has been routinely used to study matrix-trapped molecules. Optically pumped rubidium atoms within an inert-gas matrix [13] show that electron spin polarization can be maintained for a coherence time of up to 0.1 s.…”

Section: The Study Of Molecules Trapped In An Inert-gas Solidmentioning

confidence: 99%

“…The number of embedded polar molecules could range from 10 12 to 10 16 , or more. We expect that a T of approaching 1 s should be possible given that second-long coherence times were demonstrated for cesium atomic spins in solid-helium crystals [11,12] and 0.1 s has been demonstrated for rubidium atoms in an argon matrix [13]. With a measurement cycle time of one second and a one-month-long measurement, N would be 10 18 to 10 22 .…”

Section: Introductionmentioning

confidence: 99%

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Oriented Polar Molecules in a Solid Inert-Gas Matrix: A Proposed Method for Measuring the Electric Dipole Moment of the Electron

Vutha

Horbatsch

Hessels

2018

Atoms

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Abstract:We propose a very sensitive method for measuring the electric dipole moment of the electron using polar molecules embedded in a cryogenic solid matrix of inert-gas atoms. The polar molecules can be oriented in theẑ-direction by an applied electric field, as has recently been demonstrated by Park et al. The trapped molecules are prepared into a state that has its electron spin perpendicular tô z, and a magnetic field alongẑ causes precession of this spin. An electron electric dipole moment d e would affect this precession due to the up to 100 GV/cm effective electric field produced by the polar molecule. The large number of polar molecules that can be embedded in a matrix, along with the expected long coherence times for the precession, allows for the possibility of measuring d e to an accuracy that surpasses current measurements by many orders of magnitude. Because the matrix can inhibit molecular rotations and lock the orientation of the polar molecules, it may not be necessary to have an electric field present during the precession. The proposed technique can be applied using a variety of polar molecules and inert gases, which, along with other experimental variables, should allow for careful study of systematic uncertainties in the measurement.

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Section: The Study Of Molecules Trapped In An Inert-gas Solidmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Oriented Polar Molecules in a Solid Inert-Gas Matrix: A Proposed Method for Measuring the Electric Dipole Moment of the Electron

Vutha

Horbatsch

Hessels

2018

Atoms

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“…No difference in the spectra other than an overall decrease is seen, although the signal-to-noise after bleaching is unfavorable for detailed comparison. Bleaching effects are not uncommon in matrix isolation and have been seen in Rb in noble gases [20,36] and parahydrogen [37].…”

Section: Resultsmentioning

confidence: 99%

“…Noble gas solids are chemically inert and easy to produce, therefore they have potential applications where the substrate must avoid surface charging. Although alkali atomic lines are typically broadened to around 100 nm when trapped in argon [18][19][20], matrix isolated molecular transitions can be narrow, and midinfrared spin-orbit lines in atomic bromine have less than 1 cm −1 linewidth [8].…”

Section: Introductionmentioning

confidence: 99%

Subnanometer optical linewidth of thulium atoms in rare-gas crystals

2019

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We investigate the 1140 nm magnetic dipole transition of thulium atoms trapped in solid argon and neon. These solids can be straightforwardly grown on any substrate at cryogenic temperatures, making them prime targets for surface sensing applications. Our data are well described by a splitting of the single vacuum transition into three components in both argon and neon, with each component narrower than the 0.8 nm spectrometer resolution. The lifetime of the excited states is 14.6(0.5) ms in argon and 27(3) ms in neon, shorter than in vacuum or in solid helium. We also collected visible laser-induced fluorescence spectroscopy showing broader emission features in the range of 580-600 nm. The narrow infrared features in particular suggest a range of possible applications.

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“…Spin coherence times of the guest species, which are ultimately dominated by long-range dipolar couplings [1,2], could be made as long as 10 3 s for nuclear spins and 1 s for electronic spins by minimizing spin impurities within the host matrix. Applications of this "matrix isolation" technique include tests of fundamental symmetries [3,4], magnetometry [5,6] and quantum information science [7].…”

Section: Introductionmentioning

confidence: 99%

High Resolution Spectroscopy of Neutral Yb Atoms in a Solid Ne Matrix

Lambo,

Xu,

Pratt

et al. 2021

Preprint

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We present an experimental and theoretical study of the absorption and emission spectra of Yb atoms in a solid Ne matrix at a resolution of 0.025 nm. Five absorption bands were identified as due to transitions from the 4f 14 5d 0 6s 2 1 S0 ground state configuration to 4f 14 5d 0 6s6p and 4f 13 5d 1 6s 2 configurations. The two lowest energy bands were assigned to outer-shell transitions to 6s6p 3 P1 and 1 P1 atomic states and displayed the structure of a broad doublet and an asymmetric triplet, respectively. The remaining three higher-frequency bands were assigned to inner-shell transitions to distinct J = 1 states arising from the 4f 13 5d 1 6s 2 configuration and were highly structured with narrow linewidths. A classical simulation was performed to identify the stability and symmetry of possible trapping sites in the Ne crystal. It showed that the overarching 1+2 structure of the high frequency bands could be predominantly ascribed to crystal field splitting in the axial field of a 10atom vacancy of C4v symmetry. Their prominent substructures were shown to be manifestations of phonon sidebands associated with the zero-phonon lines on each crystal field state. Unprecedented for a metal-rare gas system, resolution of individual phonon states on an allowed electronic transition was possible under excitation spectroscopy which reflects the semi-quantum nature of solid Ne. In contrast to the absorption spectra, emission spectra produced by steady-state excitation into the 1 P1 absorption band consisted of simple, unstructured fluorescence bands.

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Optical pumping of rubidium atoms frozen in solid argon

Cited by 15 publications

References 20 publications

Oriented Polar Molecules in a Solid Inert-Gas Matrix: A Proposed Method for Measuring the Electric Dipole Moment of the Electron

Oriented Polar Molecules in a Solid Inert-Gas Matrix: A Proposed Method for Measuring the Electric Dipole Moment of the Electron

Subnanometer optical linewidth of thulium atoms in rare-gas crystals

High Resolution Spectroscopy of Neutral Yb Atoms in a Solid Ne Matrix

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