Nonlinear Ramsey interference with Gaussian pulse | Zendy

Chao Chen | Zendy; Tian Gang | Zendy; Yu Shu-Juan | Zendy; Shiping Yang | Zendy

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Nonlinear Ramsey interference with Gaussian pulse

Author(s) -

Chao Chen,

Tian Gang,

Yu Shu-Juan,

Shiping Yang

Publication year - 2013

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.62.225202

Subject(s) - physics , gaussian , pulse (music) , interference (communication) , nonlinear system , fourier transform , atom (system on chip) , transformation (genetics) , quantum mechanics , statistical physics , optics , telecommunications , computer science , channel (broadcasting) , biochemistry , chemistry , voltage , gene , embedded system

According to the theory of nonlinear Rosen-Zener tunneling, we investigate the nonlinear Ramsey interference of Bose-Einstein condensate in a double-well potential with Gaussian pulse. Rich Ramsey fringes are shown by the numerical simulations. The influences on the fringes of the atom-atom interaction and the period of Gaussian pulse are discussed. We obtain the analytical expression for the fundamental frequency of Ramsey fringes by using Hamilton equation. The relation of the frequency to the interaction strength and the Gaussian-pulse period is found by analyzing the fringes through Fourier transformation. The numerical simulations are consistent with our theoretical predictions.

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