Spontaneous emission by two three-level atoms

Fu, Chun-rong; Gong, Chang‐De

doi:10.1103/physreva.45.5095

Cited by 11 publications

(11 citation statements)

References 17 publications

(22 reference statements)

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“…The Liouvillean L 0 possesses three (quasi-) stationary states ρ ss,0 , ρ ss,1 , and ρ ss,2 which coincide with those for the D systems in Eqs. (10)(11)(12) and which are associated with the dark and the two bright periods. As before, one calculates ρ(t 0 + ∆t) as in Eq.…”

Section: Two Dipole-interacting Four-level Systems As a Model For Two...mentioning

confidence: 99%

Cooperative fluorescence effects for dipole-dipole interacting systems with experimentally relevant level configurations

Hannstein

Hegerfeldt

2003

Phys. Rev. A

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The mutual dipole-dipole interaction of atoms in a trap can affect their fluorescence. Extremely large effects were reported for double jumps between different intensity periods in experiments with two and three Ba ϩ ions for distances in the range of about ten wave lengths of the strong transition while no effects were observed for Hg ϩ at 15 wavelengths. In this theoretical paper we study this question for configurations with three and four levels, which model those of Hg ϩ and Ba ϩ , respectively. For two systems in the Hg ϩ configuration we find cooperative effects of up to 30% for distances around one or two wavelengths, about 5% around ten wavelengths, and, for larger distances in agreement with experiments, practically none. This is similar for two V systems. However, for two four-level configurations, which model two Ba ϩ ions, cooperative effects are practically absent, and this latter result is at odds with the experimental findings for Ba ϩ .

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Section: Two Dipole-interacting Four-level Systems As a Model For Two...mentioning

confidence: 99%

Cooperative fluorescence effects for dipole-dipole interacting systems with experimentally relevant level configurations

Hannstein

Hegerfeldt

2003

Phys. Rev. A

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“…This fraction was orders of magnitudes larger than that expected for independent ions. A quantitative explanation of such a large cooperative effect for distances of the order of ten wave lengths of the strong transition has been found to be difficult [13,41,42,43,44]. Other experiments at larger distances and with different ions showed no cooperative effects [45,46].…”

Section: Introductionmentioning

confidence: 97%

Double jumps and transition rates for two dipole-interacting atoms

Addicks

Beige

Dakna

et al. 2001

The European Physical Journal D

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Cooperative effects in the fluorescence of two dipole-interacting atoms, with macroscopic quantum jumps (light and dark periods), are investigated. The transition rates between different intensity periods are calculated in closed form and are used to determine the rates of double jumps between periods of double intensity and dark periods, the mean duration of the three intensity periods and the mean rate of their occurrence. We predict, to our knowledge for the first time, cooperative effects for double jumps, for atomic distances from one and to ten wave lengths of the strong transition. The double jump rate, as a function of the atomic distance, can show oscillations of up to 30% at distances of about a wave length, and oscillations are still noticeable at a distance of ten wave lengths. The cooperative effects of the quantities and their characteristic behavior turn out to be strongly dependent on the laser detuning.Comment: Substantially revised versio

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“…This fraction was orders of magnitudes larger than that expected for independent ions. A quantitative explanation of such a large cooperative effect has been found to be difficult [13,[37][38][39][40], and we will briefly discuss this question again in the last section. Other experiments at larger distances and with different ions showed no cooperative effects [41,42].…”

Section: Introductionmentioning

confidence: 98%

Cooperative effects in the light and dark periods of two dipole-interacting atoms

Beige

Hegerfeldt

1999

Phys. Rev. A

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If an atom is able to exhibit macroscopic dark periods, or electron shelving, then a driven system of two atoms has three types of fluorescence periods (dark, single and double intensity). We propose to use the average durations of these fluorescence types as a simple and easily accessible indicator of cooperative effects. As an example we study two dipole-interacting V systems by simulation techniques. We show that the durations of the two types of light periods exhibit marked separationdependent oscillations and that they vary in phase with the real part of the dipole-dipole coupling constant.

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Spontaneous emission by two three-level atoms

Cited by 11 publications

References 17 publications

Cooperative fluorescence effects for dipole-dipole interacting systems with experimentally relevant level configurations

Cooperative fluorescence effects for dipole-dipole interacting systems with experimentally relevant level configurations

Double jumps and transition rates for two dipole-interacting atoms

Cooperative effects in the light and dark periods of two dipole-interacting atoms

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