Exact quantum-electrodynamics results for scattering, emission, and absorption from a Rydberg atom in a cavity with arbitrary<i>Q</i>

Agarwal, G. S.; Puri, Rajeev K.

doi:10.1103/physreva.33.1757

Cited by 109 publications

(59 citation statements)

References 21 publications

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“…The emission and absorption spectrum of an ideal two-level atom in a cavity with losses was studied in [20], and the fluorescence and spontaneous emission spectra emitted by a lossy atom coupled to a lossy cavity was computed in [21,22], both systems being on resonance. Note that the problem of a two-level atom trapped in an external potential and strongly coupled to a monomode cavity is also actively studied.…”

Section: Introductionmentioning

confidence: 99%

Spontaneous emission spectrum of a two-level atom in a very-high-Qcavity

et al. 2008

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In this paper we consider an initially excited two-level system coupled to a monomode cavity, and compute exact expressions for the spectra spontaneously emitted by each system in the general case where they have arbitrary linewidths and frequencies. Our method is based on the fact that this problem has an easily solvable classical counterpart, which provides a clear interpretation of the evidenced phenomena. We show that if the cavity linewidth is much lower than the atomic linewidth, photons are emitted at the cavity frequency, even if the atom and the cavity are strongly detuned. We also study the links between the spontaneous emission spectra and the fluorescence spectra emitted when the atom is driven by a classical field of tunable frequency in the low excitation limit.

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Section: Introductionmentioning

confidence: 99%

Spontaneous emission spectrum of a two-level atom in a very-high-Qcavity

et al. 2008

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“…In region 4, given by |γ − | < g < |Γ − |, where on the contrary SC is expected according to eqn (9), it is lost because of pumping. In the regions 1 and 5, the effect of the pump is quantitative only, renormalising the broadening and splitting of the peaks, but is still important to provide a numerical agreement with experimental data.…”

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confidence: 99%

“…In the ample literature devoted to the description of this spectral shape [8,9,10,11,12], the seminal work of Ref. [8] paid little attention to the excitation (using a coherent state as an initial condition) and neglected dissipation, while works such as [9,11] addressed the case of coherent pumping. Ref.…”

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Strong Coupling of Quantum Dots in Microcavities

2008

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We show that strong-coupling (SC) of light and matter as it is realized with quantum dots (QDs) in microcavities differs substantially from the paradigm of atoms in optical cavities. The type of pumping used in semiconductors yields new criteria to achieve SC, with situations where the pump hinders, or on the contrary, favours it. We analyze one of the seminal experimental observation of SC of a QD in a pillar microcavity [Reithmaier et al., Nature (2004)] as an illustration of our main statements.

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“…Line shapes were associated with the spectrometer bandwidth [9], since no cavity bandwidth was included. Another early calculation for a TLA in a high-Q cavity was that of Agarwal [10], who used the dressed atom model to predict the SE and weak probe absorption spectra. This article determines the SE spectrum for different positions of the spectrometer, the spectrum associated with sideways emission via direct SE being given in terms of the two-time dipole correlation function, whilst the spectrum associated with end emission via the cavity output mirror is given in terms of the two-time correlation function for cavity creation and annihilation operators.…”

Section: Introductionmentioning

confidence: 99%

Cascade atom in high-Q cavity: the spectrum for non-Markovian decay

Dalton

Garraway

2007

Conference on Coherence and Quantum Optics

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The spontaneous emission spectrum for a three level cascade configuration atom in a single mode high-Q cavity coupled to a zero temperature reservoir of continuum external modes is determined from the atom-cavity mode master equation using the quantum regression theorem. Initially the atom is in its upper state and the cavity mode empty of photons. Following Glauber, the spectrum is defined via the response of a detector atom. Spectra are calculated for the detector located inside the cavity (case A), outside the cavity end mirror (Case B-end emission), or placed for emission out the side of the cavity (Case C). The spectra for case A and case B are found to be essentially the same. In all the cases the predicted lineshapes are free of instrumental effects and only due to cavity decay. Spectra are presented for intermediate and strong coupling regime situations (where both atomic transitions are resonant with the cavity frequency), for cases of non-zero cavity detuning, and for cases where the two atomic transition frequencies differ. The spectral features for Cases B(A) and C are qualitatively similar, with six spectral peaks for resonance cases and eight for detuned cases. These general features of the spectra can be understood via the dressed atom model. However, Case B and C spectra differ in detail, with the latter exhibiting a deep spectral hole at the cavity frequency due to quantum interference effects.

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Exact quantum-electrodynamics results for scattering, emission, and absorption from a Rydberg atom in a cavity with arbitraryQ

Cited by 109 publications

References 21 publications

Spontaneous emission spectrum of a two-level atom in a very-high-Qcavity

Spontaneous emission spectrum of a two-level atom in a very-high-Qcavity

Strong Coupling of Quantum Dots in Microcavities

Cascade atom in high-Q cavity: the spectrum for non-Markovian decay

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