Alignment-dependent decay rate of an atomic dipole near an optical nanofiber

Solano, Pablo; Grover, Jeffrey A.; Xu, Yunlu; Barberis-Blostein, Pablo; Munday, Jeremy N.; Orozco, L. A.; Phillips, William D.; Rolston, Steven

doi:10.1103/physreva.99.013822

Cited by 18 publications

(14 citation statements)

References 86 publications

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“…Until now, the quantization axis was implicitly fixed along the fiber axis (Oz). Here, in the spirit of the experimental work in Ref [43], we study how the spontaneous emission rate of an atom close to an optical nanofiber depends on the direction of the quantization axis chosen to define its state, and therefore the direction of its angular momentum polarization. The angles (Θ, Φ) characterizing the quantization axis are specified in Fig.…”

Section: Influence Of the Quantization Axismentioning

confidence: 99%

Spontaneous emission of a sodium Rydberg atom close to an optical nanofibre

Stourm

Zhang

Lepers

et al. 2019

J. Phys. B: At. Mol. Opt. Phys.

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In this paper, we report on numerical calculations of the spontaneous emission rates and Lamb shifts of a 87 Rb atom in a Rydberg-excited state (n ≤ 30) located close to a silica optical nanofiber. We investigate how these quantities depend on the fiber's radius, the distance of the atom to the fiber, the direction of the atomic angular momentum polarization as well as the different atomic quantum numbers. We also study the contribution of quadrupolar transitions, which may be substantial for highly polarizable Rydberg states. Our calculations are performed in the macroscopic quantum electrodynamics formalism, based on the dyadic Green's function method. This allows us to take dispersive and absorptive characteristics of silica into account; this is of major importance since Rydberg atoms emit along many different transitions whose frequencies cover a wide range of the electromagnetic spectrum. Our work is an important initial step towards building a Rydberg atomnanofiber interface for quantum optics and quantum information purposes.

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Section: Influence Of the Quantization Axismentioning

confidence: 99%

Spontaneous emission of a sodium Rydberg atom close to an optical nanofibre

Stourm

Zhang

Lepers

et al. 2019

J. Phys. B: At. Mol. Opt. Phys.

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show abstract

“…Variations in the MOT density do not strongly affect the measured width, meaning that we have densities low enough that collective effects are negligible. A possible explanation could be the modification of the atomic linewidth due to Purcell effect of the ONF, but measurements for similar atomic distribution have shown this to produce only a 10% increase [38]. Sagué et al [8] measure a similar broadening in Cs, on the order of 20%.…”

Section: B Fitting Modelmentioning

confidence: 99%

Spectral asymmetry of atoms in the van der Waals potential of an optical nanofiber

et al. 2018

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We measure the modification of the transmission spectra of cold 87 Rb atoms in the proximity of an optical nanofiber (ONF). Van der Waals interactions between the atoms an the ONF surface decrease the resonance frequency of atoms closer to the surface. An asymmetric spectra of the atoms holds information of their spatial distribution around the ONF. We use a far-detuned laser beam coupled to the ONF to thermally excite atoms at the ONF surface. We study the change of transmission spectrum of these atoms as a function of heating laser power. A semi-classical phenomenological model for the thermal excitation of atoms in the atom-surface van der Waals bound states is in good agreement with the measurements. This result suggests that van der Waals potentials could be used to trap and probe atoms at few nanometers from a dielectric surfaces, a key tool for hybrid photonic-atomic quantum systems.

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“…Here, in the spirit of the experimental work in Ref. [44], we study how the spontaneous emission rate of an atom close to an optical nanofiber depends on the direction of the quantization axis chosen to define its state, and therefore the direction of its angular momentum polarization. The angles ( , ) characterizing the quantization axis are specified in Fig.…”

Section: Influence Of the Quantization Axismentioning

confidence: 99%

Spontaneous emission and energy shifts of a Rydberg rubidium atom close to an optical nanofiber

et al. 2020

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In this paper, we report on numerical calculations of the spontaneous emission rates and Lamb shifts of a 87 Rb atom in a Rydberg-excited state (n 30) located close to a silica optical nanofiber. We investigate how these quantities depend on the fiber's radius, the distance of the atom to the fiber, the direction of the atomic angular momentum polarization, as well as the different atomic quantum numbers. We also study the contribution of quadrupolar transitions, which may be substantial for highly polarizable Rydberg states. Our calculations are performed in the macroscopic quantum electrodynamics formalism, based on the dyadic Green's function method. This allows us to take dispersive and absorptive characteristics of silica into account; this is of major importance since Rydberg atoms emit along many different transitions whose frequencies cover a wide range of the electromagnetic spectrum. Our work is an important initial step toward building a Rydberg atom-nanofiber interface for quantum optics and quantum information purposes.

show abstract

Alignment-dependent decay rate of an atomic dipole near an optical nanofiber

Cited by 18 publications

References 86 publications

Spontaneous emission of a sodium Rydberg atom close to an optical nanofibre

Spontaneous emission of a sodium Rydberg atom close to an optical nanofibre

Spectral asymmetry of atoms in the van der Waals potential of an optical nanofiber

Spontaneous emission and energy shifts of a Rydberg rubidium atom close to an optical nanofiber

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