Effects of quantum coherence and interference in atoms near nanoparticles

Dhayal, Suman; Rostovtsev, Yuri V.

doi:10.1103/physreva.93.043405

Cited by 10 publications

(9 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There are also works that consider various quantum effects in systems QE + NPs. In particular, the effects of quantum coherence and interference in a QE near an NP were studied in [ 150 ]. In that work, the formation of dark states, optical pumping, coherent Raman scattering and STIRAP (Stimulated Raman Adiabatic Passage) in the presence of metallic NPs were demonstrated.…”

Section: Quantum Optics Of a Qe In The Near Field Of An Npmentioning

confidence: 99%

Quantum Optics in Nanostructures

Vladimirova

Zadkov

2021

Nanomaterials

View full text Add to dashboard Cite

This review is devoted to the study of effects of quantum optics in nanostructures. The mechanisms by which the rates of radiative and nonradiative decay are modified are considered in the model of a two-level quantum emitter (QE) near a plasmonic nanoparticle (NP). The distributions of the intensity and polarization of the near field around an NP are analyzed, which substantially depend on the polarization of the external field and parameters of plasmon resonances of the NP. The effects of quantum optics in the system NP + QE plus external laser field are analyzed—modification of the resonance fluorescence spectrum of a QE in the near field, bunching/antibunching phenomena, quantum statistics of photons in the spectrum, formation of squeezed states of light, and quantum entangled states in these systems.

show abstract

Section: Quantum Optics Of a Qe In The Near Field Of An Npmentioning

confidence: 99%

Quantum Optics in Nanostructures

Vladimirova

Zadkov

2021

Nanomaterials

View full text Add to dashboard Cite

show abstract

“…[ 45 ] Similarly, when the spontaneous decay rates of the QS increases near a nanostructure due to the Purcell effect, the population transfer efficiency of STIRAP increases, as well. However, when these decay rates exceed a threshold, the transfer efficiency of STIRAP begins to decrease, [ 44,46,47 ] a phenomenon also noticed in generic three‐level QSs. [ 48,49 ] On the other hand, in the study [ 47 ] efficient population transfer using STIRAP is achieved for small distance between the QS and the MNP, medium values of the free‐space decay rates as well as large value of the pump and small value of the Stokes Rabi frequencies, when the pump and the Stokes field is polarized along the tangential and the radial direction, correspondingly, relatively to the surface of the MNP.…”

Section: Introductionmentioning

confidence: 96%

“…The application of STIRAP in a QS near a plasmonic nanostructure has been investigated in refs. [44–46] for the same polarization for all laser pulses involved and in ref. [#0047] for different polarization direction of the two applied laser pulses.…”

Section: Introductionmentioning

confidence: 99%

“…The application of STIRAP in a QS near a plasmonic nanostructure has been investigated in refs. [44][45][46] for the same polarization for all laser pulses involved and in ref.…”

Section: Introductionmentioning

confidence: 99%

“…In particular, from the one hand in refs. [44][45][46] it was revealed that with increasing field intensities, the efficiency of population transfer when using STIRAP also increases, as the QS is placed closer to the plasmonic nanostructure. [45] Similarly, when the spontaneous decay rates of the QS increases near a nanostructure due to the Purcell effect, the population transfer efficiency of STIRAP increases, as well.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Efficient Population Transfer in a Λ‐Type Quantum System Coupled to a Gold Nanoparticle Using STIRAP Shortcuts

et al. 2022

View full text Add to dashboard Cite

A theoretical investigation on the population transfer in a 𝚲-type quantum system near a spherical gold nanoparticle under application of two stimulated Raman adiabatic passage (STIRAP) shortcuts and efficiency comparison with conventional STIRAP. It combines the density matrix approach for system dynamics, with classical electromagnetic calculations used to obtain the modified electric field amplitudes of the applied pulses and the Purcell factor of the quantum system due to the presence of the nanoparticle. The efficiency of population transfer is investigated by varying the distance between the quantum system and the nanoparticle, the free-space decay rate of quantum states, the mutual polarization, and the Rabi frequencies of each STIRAP shortcut pulses. In all cases, at least one of the applied shortcuts is more efficient than conventional STIRAP, while in most cases both perform better. When the pump and Stokes fields of the shortcuts have radial and tangential polarizations with respect to the nanoparticle surface, respectively, high transfer efficiency is obtained for small distances of the quantum system to the nanoparticle, moderate free space decay rates and large Rabi frequencies of the fields, while when the pulse polarizations are interchanged, the transfer becomes highly efficient only at large distances.

show abstract