Comparison of recoil-induced resonances and the collective atomic recoil laser

Berman, P. R.

doi:10.1103/physreva.59.585

Cited by 44 publications

(35 citation statements)

References 27 publications

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“…Hence, it does not include the effects of probe feedback, which are necessary for exponential behavior. A detailed comparison of the RIR and CARL theories is given in [32].…”

Section: Introductionmentioning

confidence: 99%

Quantum optics of a Bose-Einstein condensate coupled to a quantized light field

1999

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We consider the interaction between a Bose-Einstein condensate and a single-mode quantized light field in the presence of a strong far off-resonant pump laser. The dynamics is characterized by an exponential instability, hence the system acts as an atom-photon parametric amplifier. Triggered by a small injected probe field, or simply by quantum noise, entangled atom-photon pairs are created which exhibit non-classical correlations similar to those seen between photons in the optical parametric amplifier. In addition, the quantum statistics of the matter and light fields depend strongly on the initial state which triggers the amplifier. Thus by preparing different initial states of the light field, one can generate matter waves in a variety of quantum states, demonstrating optical control over the quantum statistics of matter waves.

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“…Hence, it does not include the effects of probe feedback, which are necessary for exponential behavior. A detailed comparison of the RIR and CARL theories is given in [32].…”

Section: Introductionmentioning

confidence: 99%

Quantum optics of a Bose-Einstein condensate coupled to a quantized light field

1999

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“…At the same time, in a real experiment, plenty of atoms in the condensate far away from the center with a much lower density are not included in our theoretical model. The superradiant gain is dependent on the density of the BEC, thus the collective gain does not occur below a critical density [23], then a big amount of these atoms will stay in their initial state, leading to a greater atomic population in the (0, 0) mode in experiment than that predicted by the numerical calculation.…”

Section: B Long Pulse Regimementioning

confidence: 86%

Asymmetric superradiant scattering and abnormal mode amplification induced by atomic density distortion

et al. 2013

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The superradiant Rayleigh scattering using a pump laser incident along the short axis of a BoseEinstein condensate with a density distortion is studied, where the distortion is formed by shocking the condensate utilizing the residual magnetic force after the switching-off of the trapping potential. We find that very small variation of the atomic density distribution would induce remarkable asymmetrically populated scattering modes by the matter-wave superradiance with long time pulse. The optical field in the diluter region of the atomic cloud is more greatly amplified, which is not an ordinary mode amplification with the previous cognition. Our numerical simulations with the density envelop distortion are consistent with the experimental results. This supplies a useful method to reflect the geometric symmetries of the atomic density profile by the superradiance scattering.

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“…The certain amount of techniques for deriving the master equation is in use today, but most of them are limited to the case of the non-interacting atoms (see, for instance, [6,[25][26][27][28][29][30][31]) or frozen positions for each atom (see, for example, works [32][33][34][35][36]). A review of the relatively early developments in the theory of the effects of binary collisions on the spectral profiles is presented in [37] with respect to the simplified master equations for one-particle density matrix elements including some phenomenological items taking into account atomic transitions at the short-range collisions.…”

Section: Introduction and Motivationsmentioning

confidence: 99%

Kinetics and Optical Properties of the Strongly Driven Gas Medium of Interacting Atoms

Sizhuk

Hemmer

2012

J Stat Phys

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This paper investigates stimulated emission and absorption near resonance for a driven system of interacting two-level atoms. Microscopic kinetic equations for the density matrix elements of N -atom states including atomic motion are built, taking into account atom-field and atom-atom interactions. Analytical solutions are given for the resulting macroscopic equations in different limits, for a system composed of a strong coherent "pump" field and a weak counter-propagating "probe" field. It was shown that the existence of a dipole-dipole (long-range) interaction between atoms separated by distance less than the pump wave-length can cause the formation of periodic polarization and population structures (gratings in time and space) in the pumped medium without a probe field. The magnitude of pump induced population grating can have a strong dependence on the relation between the pump field detuning and the polarization decay rate. The "interaction" between pump and probe induced polarization/population gratings through a dipole-dipole interaction mechanism causes the absorption line shape asymmetry. Under certain conditions, this asymmetry is revealed in increasing probe gain for the "red"-shifted (relative to pump) probe and suppressing the gain for the "blue"-shifted probe field when pump is "red"-shifted relative to the ensemble averaged resonant frequency. The theoretical results are consistent with experimental data for the probe gain or absorption as the function of frequency and the dependance of the gain on atomic density for sodium vapor when the pump laser is tuned near the D 2 line. Here the dependance of gain on particle density was explained in the terms of the long-range interaction between the atoms.

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Comparison of recoil-induced resonances and the collective atomic recoil laser

Cited by 44 publications

References 27 publications

Quantum optics of a Bose-Einstein condensate coupled to a quantized light field

Quantum optics of a Bose-Einstein condensate coupled to a quantized light field

Asymmetric superradiant scattering and abnormal mode amplification induced by atomic density distortion

Kinetics and Optical Properties of the Strongly Driven Gas Medium of Interacting Atoms

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