Effects of counting rate and resolution time on a measurement of the intensity correlation function

Li, Y.; Li, G.; Zhang, Y. C.; Wang, X. Y.; Zhang, J.; Wang, J. M.; Zhang, T. C.

doi:10.1103/physreva.76.013829

Cited by 17 publications

(9 citation statements)

References 17 publications

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“…Note that the initial states have been selected so that the conditions in Eqs. (6) and (7) are not met and neither the SD nor the E model is accurate. Figure 1 shows that our model accurately reproduces the average rate and the mean number of photons.…”

Section: B Comparison Of the Full System And Reduced Modelsmentioning

confidence: 99%

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Unified quantum jump superoperator for optical fields from the weak- to the strong-coupling limit

2010

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2010. Unified quantum jump superoperator for optical fields from the weak-to the strong-coupling limit.We derive a generalized quantum jump superoperator that can be used in the quantum trajectory description of single photon detectors, light-emitting diodes (LEDs), and lasers. Our model describes an optical single-mode cavity field coupled to a reservoir through a two-state quantum system and includes three physical parameters: the coupling of the field to the two-state system, the coupling of the two-state system to the reservoir, and the cavity loss rate. In this setup, the two-state system can act as a photodetector or as an energy-adding mechanism. In the first case, we assume that the reservoir acts as a damping mechanism for an ideal cavity and derive reduced field operators describing the photon detection events. Our model coincides with the commonly known quantum trajectory based photon counting models at the weak-and strong-coupling limits and is, furthermore, also applicable between their validity regimes. In the second case, we assume that the reservoir injects energy into a lossy cavity through the two-state system. Again we derive the reduced field operators describing photon creation events into the lossy cavity. We show that this setup can act as an LED or as a laser depending on the strength of the injection. We also investigate how the setup operates at the close proximity of the lasing threshold.

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Section: B Comparison Of the Full System And Reduced Modelsmentioning

confidence: 99%

“…Several recent experiments have focused on photon creation and destruction [1,2], on the statistics of the collapsed field [3], and on the photon correlation properties [4][5][6] of the generated photon fields. All these experiments make use of very high quality photodetector schemes [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Unified quantum jump superoperator for optical fields from the weak- to the strong-coupling limit

2010

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“…The progress in experiments have given insight into the single photon creation and annihilation, the statistics of collapsed fields [1,2], and the correlation and coherence properties of the fields [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Dynamics of cavity fields with dissipative and amplifying couplings through multiple quantum two-state systems

2011

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We consider simultaneous dissipative and amplifying coupling of cavity fields to multiple two-state systems. We derive a master equation for optical field in a leaky cavity coupled to a reservoir through multiple two-state systems. In our previous works we have limited our study to systems where the reservoir either solely absorbs energy (detector setup) or adds energy (amplifying setup) to the cavity through a single two-state system. In this work we allow both interactions simultaneously and derive a reduced dynamic model for the optical field. We also generalize our model to cover the coupling of the field to several two state systems and discuss its connection to macroscopic interaction, e.g., in semiconductors. Our model includes four physical parameters: the field two-state system coupling γ , the excitation and deexcitation couplings of the two-state system by the reservoir λ A and λ D , respectively, and the mirror losses of the cavity C. We solve the steady-state fields at different regimes of these physical parameters. Furthermore, we show that, depending on the parameters, our model can describe the operation of a detector, a light emitting diode, or a laser.

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“…The cavity is locked to the cesium D2 transition 6 2 S 1/2 , F = 4 → 6 2 P 3/2 , F = 5. Single-photon counting modules (SPCMs) [30] are used to detect the cavity transmission. Figure 3 shows the cavity transmission versus the scanning of the frequency of the probe light.…”

mentioning

confidence: 99%

“…The length of cavity is about 86μm with the waist of TEM 00 mode of 0 w =23.8μm. The finesse of cavity is F=330000 and the parameters of the system are (g [29] is used to detect the cavity transmission. Fig.…”

mentioning

confidence: 99%

Elimination of the degenerate trajectory of a single atom strongly coupled to a tilted TEM10cavity mode

Zhang

Guo

et al. 2011

Phys. Rev. A

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We demonstrate the trajectory measurement of the single neutral atoms deterministically using a high-finesse optical microcavity. The single atom strongly couples to the high-order transverse vacuum TEM 10 mode, instead of the usual TEM 00 mode, and the parameters of the system are (g 10 ,κ,γ ) = 2π × (20.5,2.6,2.6) MHz. The atoms simply fall down freely from the magneto-optical trap into the cavity modes, and the trajectories of the single atoms are linear. The transmission spectra of atoms passing through the TEM 10 mode are detected by single-photon counting modules and are well fitted. Thanks to the tilted cavity transverse TEM 10 mode, which is inclined to the vertical direction ∼45 • , it helps us to eliminate the degenerate trajectory of the single atom falling through the cavity and to obtain a unique atom trajectory. An atom position with a high precision of 0.1 µm in the off-axis direction (axis y) is obtained, and a spatial resolution of 5.6 µm is achieved in a time interval of 10 µs along the vertical direction (axis x). The average velocity of the atoms is also measured from the atom transits, which determines independently the temperature of the atoms in a magneto-optical trap, 186 ± 19 µK.

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Effects of counting rate and resolution time on a measurement of the intensity correlation function

Cited by 17 publications

References 17 publications

Unified quantum jump superoperator for optical fields from the weak- to the strong-coupling limit

Unified quantum jump superoperator for optical fields from the weak- to the strong-coupling limit

Dynamics of cavity fields with dissipative and amplifying couplings through multiple quantum two-state systems

Elimination of the degenerate trajectory of a single atom strongly coupled to a tilted TEM10cavity mode

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