Stimulated photon emission and two-photon Raman scattering in a coupled-cavity QED system

Li, C.; Song, Z.

doi:10.1038/srep20991

Cited by 4 publications

(2 citation statements)

References 28 publications

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“…On the other hand, the research of IBk waves will give a guidance to a novel scattering mechanism in the field of laser plasma interaction (LPI) [15,16] which may have impacts on inertial confinement fusion (ICF) [17][18][19][20][21][22]. Being scattered by IAWs and Langmuir waves (LWs), laser losses energy due to stimulated Brillouin scattering (SBS) [23][24][25][26][27][28][29] and SRS [30][31][32][33][34][35][36], respectively. In addition, Montgomery et al reported an observation of stimulated electron-acoustic-wave scattering (SEAS) [37] which is scattered by EAWs [38].…”

Section: Introductionmentioning

confidence: 99%

Harmonic effects on ion-bulk waves and simulation of stimulated ion-bulk-wave scattering in CH plasmas

Feng¹,

Zheng²,

Liu³

et al. 2017

Plasma Phys. Control. Fusion

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The harmonics effect on ion-bulk (IBk) waves has been researched by Vlasov simulation. The condition of excitation of a large-amplitude IBk waves is given to explain the phenomenon of strong short-wavelength electrostatic activity in solar wind. When k is much lower than k lor /2 (k lor is the wave number at loss-of-resonance point), the IBk waves will not be excited to a large amplitude, because a large part of energy will be spread to harmonics. The nature of nonlinear IBk waves in the condition of k < k lor /2 is undamped Bernstein-Greene-Kruskal-like waves with harmonics superposition. Only when the wave number k of IBk waves satisfies k lor /2 < ∼ k ≤ k lor , can a large-amplitude and mono-frequency IBk wave be excited. These results give a guidance for a novel scattering mechanism related to IBk waves in the field of laser plasma interaction. The problem of understanding the role of kinetic effects and also fluid effects on the low frequency dynamics of collisionless plasmas, like solar wind, is nowadays of key significance in space physics. In the 1970s, several observations [1] have shown that the most intense ion-acoustic waves (IAWs) usually occur in the low-velocity regions, i.e., in the large-wave-number regions. This Letter will give the corresponding analyses and the evidence consistent to these observations. However, in their analyses [1], only the short-wavelength IAWs were considered as the main electrostatic activity in solar wind. Recently, Valentini et al. found that a novel branch of electrostatic kinetic waves was generated due to particles trapping in the development of the turbulent spectra [2]. The novel branch with a lower frequency than the IAWs and with a phase velocity v φ close to the ion thermal velocity v ti is named ion-bulk (IBk) waves by Valentini [3]. Therefore, the nature of lower frequency waves with v φ ≃ v ti is not understood due to a strong Landau damping, which is similar to the electron-acoustic waves (EAWs) [4]. By adding a external driving electric field (driver), after several bounce time of particles, the Landau damping of IBk waves will be decreased and be nearly zero [5][6][7] due to particles trapping. However, the energy was stored in the nonlinear IBk waves only when the wave number k was larger than a special value [2], which has not been explained and calls for a clear interpretation. This Letter will give a clear and detailed interpretation of these phenomena from the view of harmonics effects.On the other hand, the research of IBk waves will give a guidance to a new scattering mechanism in the field of laser plasmas interaction (LPI) [8,9] related to inertial confinement fusion (ICF) [10,11]. As we know, laser scattering mainly includes stimulated Brillouin scattering (SBS) [12] from IAWs, stimulated Raman scattering (SRS) [13] from Langmuir waves (LWs). In addition, Montgomery et al. reported observation of a novel stimulated electron-acoustic-wave scattering (SEAS) [14] related to electron-acoustic waves (EAWs) [15]. However, Montgomery et al. [14] thoug...

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Section: Introductionmentioning

confidence: 99%

Harmonic effects on ion-bulk waves and simulation of stimulated ion-bulk-wave scattering in CH plasmas

Feng¹,

Zheng²,

Liu³

et al. 2017

Plasma Phys. Control. Fusion

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“…[2,3] Among them, scattering of single photons in a one-dimensional waveguide or coupled resonator waveguide (CRW) is one of the most promising candidates. [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] In particular, to realize single photon quantum switching, Sun et al used a two-level atom coupled to a one-dimensional (1D) coupled resonator waveguide to control the coherent transport of a single photon. [21] They also realized a single-photon quantum switch in cross-resonator arrays with a Λ-type atom which is localized in the intersectional resonator using the Fano-Feshbach effect based on the dark state of the Λ-type atom.…”

Section: Introductionmentioning

confidence: 99%

Scattering of a single photon in a one-dimensional coupled resonator waveguide with a Λ-type emitter assisted by an additional cavity

Li¹,

Yang²,

Lin³

et al. 2018

Chinese Phys. B

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We analyze the transport property of a single photon in a one-dimensional coupled resonator waveguide coupled with a Λ-type emitter assisted by an additional cavity. The reflection and transmission coefficients of the inserted photon are obtained by the stationary theory. It is shown that the polarization state of the inserted photon can be converted with high efficiency. This study may inspire single-photon devices for scalable quantum memory.

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Effects of modal dispersion on few-photon–qubit scattering in one-dimensional waveguides

Kocabaş

2016

Phys. Rev. A

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We study one-and two-photon scattering from a qubit embedded in a one-dimensional waveguide in the presence of modal dispersion. We use a resolvent based analysis and utilize techniques borrowed from the Lee model studies. Modal dispersion leads to atom-photon bound states which necessitate the use of multichannel scattering theory. We present multichannel scattering matrix elements in terms of the solution of a Fredholm integral equation of the second kind. Through the use of the Lippmann-Schwinger equation, we derive an infinite series of Feynman diagrams that represent the solution to the integral equation. We use the Feynman diagrams as vertex correction terms to come up with closed form formulas that successfully predict the trapping rate of a photon in the atom-photon bound state. We verify our formalism through Krylov-subspace based numerical studies with pulsed excitations. Our results provide the tools to calculate the complex correlations between scattered photons in a dispersive environment.

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Stimulated photon emission and two-photon Raman scattering in a coupled-cavity QED system

Cited by 4 publications

References 28 publications

Harmonic effects on ion-bulk waves and simulation of stimulated ion-bulk-wave scattering in CH plasmas

Harmonic effects on ion-bulk waves and simulation of stimulated ion-bulk-wave scattering in CH plasmas

Scattering of a single photon in a one-dimensional coupled resonator waveguide with a Λ-type emitter assisted by an additional cavity

Effects of modal dispersion on few-photon–qubit scattering in one-dimensional waveguides

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