Controllable two- and three-dimensional atom localization via spontaneously generated coherence

Bozorgzadeh, Forough; Fard, Mohammad Reza Ghorbani; Sahrai, Mostafa

doi:10.1140/epjp/s13360-020-00932-5

Cited by 11 publications

(8 citation statements)

References 41 publications

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“…Agarwal theoretically predicted the QI between the orthogonal transition channels of a V-type Zeeman atom in a cavity formed by conducting plates [48], where the near-degenerate atomic transitions become (anti)parallel in the strong QI regime. This mechanism leads to many optical phenomena, such as lasing without inversion [49], protecting quantum entanglement [50], electro magnetically induced transparency [51,52], atomic location [53,54], and spontaneous emission cancellation [55]. Moreover, effective control of the QI effect has been demonstrated by coupling QEs to bulk metamaterials [56], metallic nanostructures [57], and periodic waveguide structures [58].…”

Section: Introductionmentioning

confidence: 99%

Anisotropic mode excitations and enhanced quantum interference in quantum emitter-metasurface coupled systems

et al. 2022

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This study proposes a nanophotonic structure that supports quantum interference (QI) between orthogonal decay channels in multilevel quantum emitters within the framework of the quantum master equation. The Green functions of the electric field are obtained by applying boundary conditions in the presence of two-dimensional metasurfaces. We demonstrate distinct in-plane excitation features of the surface plasmon modes (SPMs) with the anisotropic metasurfaces tailored to conductivity components. In particular, we observed that the Purcell factor of transitions with orthogonal polarizations experiences unequal enhancements, owing to the anisotropic propagation of the SPMs. This property depends only on the anisotropy of the metasurfaces; thus, it is easily manipulated. Using this platform and considering experimentally achievable material parameters, we predict a strong interference effect in three-level quantum emitters. In principle, this enables the generation of maximum QI. Our study provides a method for realizing QI systems and has potential applications in highly integrated, tuneable quantum devices.

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Section: Introductionmentioning

confidence: 99%

Anisotropic mode excitations and enhanced quantum interference in quantum emitter-metasurface coupled systems

et al. 2022

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“…Zhu et al used three-wave mixing to achieve precision 3D atom localization in a V-type atomic system [34]. Thereafter, Wang et al achieved 100% localization probability for an atom in three-level atomic systems by measuring probe absorption [35,36], Yin et al utilized the effect of Kerr nonlinearity for precision 3D atom localization in a three-level system [37], Bozorgzadeh et al proposed an N-type atomic system for two-and three-dimensional atom localization [38]. Their study demonstrates that the spontaneously generated coherence can be used to enhance the precision and resolution of atom localization.…”

Section: Introductionmentioning

confidence: 99%

Microwave enhanced precision in 2D and 3D atom localization at nonzero temperatures

Dar¹,

Kaur²,

Singh³

et al. 2022

Laser Phys. Lett.

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Two- and three-dimensional (2D and 3D) atom localization is analyzed by monitoring the probe absorption spectrum in a microwave driven X-type scheme. It is found that for both stationary and moving atom cases, the precision and certainty in atomic position can be significantly improved by proper adjustment of the system parameters. Our results also reveal that the high microwave field strength curbs the Doppler broadening effect to a large extent and enhances detection probability to 100% in 2D and 3D subspace at nonzero temperatures. Our proposed scheme may be helpful for experimental realization of high precision position measurement and atom nanolithography at room temperature.

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“…Quite recently, several schemes [49][50][51] have been proposed to investigate the atom localization in three dimensions. Qi et al [52] studied the localization and structure by the transparency of electromagnetic induction, a variety of atom localization patterns in the subspaces could be obtained via changing the system parameters.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional atom localization with high-precision and high-resolution via a microwave field in an atomic system

Liu¹,

Wang²,

Wang³

et al. 2021

Laser Phys.

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A scheme for three-dimensional (3D) atom localization with high-precision and high-resolution is proposed and its control is studied in a four-level atomic system driven by an additional microwave field. Because of the spatial dependent interaction between atoms and standing wave fields, the atoms can be localized in a domain with widths as small as 0.014λ by appropriately adjusting the system parameters. The probe absorption spectrum of the atomic system gives the position information of the atoms and different evolution patterns of the localization structures in this study. The population distribution and its 3D localization structures can be easily adjusted by parameters of the microwave field, which can achieve a 100% probability of observing the atom in a specific space and the accuracy with the value of 0.014λ. Compared with 1D or 2D localizations, 3D localization can further improve the precision of position measurement and develop its spatial resolution, which may produce a wider variety of practical applications with high precision requirement.

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Controllable two- and three-dimensional atom localization via spontaneously generated coherence

Cited by 11 publications

References 41 publications

Anisotropic mode excitations and enhanced quantum interference in quantum emitter-metasurface coupled systems

Anisotropic mode excitations and enhanced quantum interference in quantum emitter-metasurface coupled systems

Microwave enhanced precision in 2D and 3D atom localization at nonzero temperatures

Three-dimensional atom localization with high-precision and high-resolution via a microwave field in an atomic system

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