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Hobbies / Amateur Science - Lasers

Relaxation oscillations in long-pulsed random lasers

Author(s): Karen L. van der Molen, Allard P. Mosk, and Ad LagendijkWe have measured the evolution of the intensity emitted by a random laser during a pump pulse that is comparable in duration to the spontaneous emission decay time. The time traces of our r...
Physics Review

Propagation of light pulses in a fast-light medium: Interplay between gain and dispersion

Author(s): T. Crouzil and M. A. BoucheneWe consider here the situation of a Gaussian pulse that probes a medium exhibiting two close resonance lines. We study the spatial behavior of the light pulse and emphasize some overlooked features. Moreover, for lon...
Physics Review

Non-Markovian analysis of the phase-damped Jaynes-Cummings model in the presence of a classical homogeneous gravitational field

Author(s): M. MohammadiIn this paper, the non-Markovian dissipative dynamics of the phase-damped Jaynes-Cummings model in the presence of a classical homogeneous gravitational field will be analyzed. The model consists of a moving two-level atom simultaneo...
Physics Review

Jaynes-Cummings models with trapped electrons on liquid helium

Author(s): Miao Zhang, H. Y. Jia, and L. F. WeiJaynes-Cummings model is a typical model in quantum optics and has been realized with various physical systems [e.g, cavity quantum electrodynamics (QED), trapped ions, circuit QED, etc.] of two-level atoms in...
Physics Review

Engineering quantum operations on traveling light beams by multiple photon addition and subtraction

Author(s): Jaromír FiurásekWe propose and investigate an optical scheme for probabilistic implementation of an arbitrary single-mode quantum operation that can be expressed as a function of photon number operator. The scheme coherently combines multiple ph...
Physics Review

Analytic approximations to the phase diagram of the Jaynes-Cummings-Hubbard model

Author(s): Alexander Mering, Michael Fleischhauer, Peter A. Ivanov, and Kilian SingerWe discuss analytic approximations to the ground-state phase diagram of the homogeneous Jaynes-Cummings-Hubbard (JCH) Hamiltonian with general short-range hopping. The JCH...
Physics Review

Attraction and repulsion of parallel femtosecond filaments in air

Author(s): Hua Cai, Jian Wu, Peifen Lu, Xueshi Bai, Liang'en Ding, and Heping ZengWe present an approach to explore and control nonlinear interactions between two orthogonally polarized femtosecond filaments launched parallel in air. The self-phase and cro...
Physics Review

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