Parametric amplification of Rydberg six- and eight-wave mixing processes

Abstract

We study the parametric amplification of electromagnetically induced transparency-assisted Rydberg six-and eight-wave mixing signals through a cascaded nonlinear optical process in a hot rubidium atomic ensemble both theoretically and experimentally. The shift of the resonant frequency (induced by the Rydberg-Rydberg interaction) of parametrically amplified six-wave mixing signal is observed. Moreover, the interplays between the dressing effects and Rydberg-Rydberg interactions in parametrically amplified multiwave mixing signals are investigated. The linear amplification of Rydberg multiwave mixing processes with multichannel nature acts against the suppression caused by Rydberg-Rydberg interaction and dressing effect.

Realization of Deutsch–Jozsa Algorithm in Rydberg Atoms by Composite Nonadiabatic Holonomic Quantum Computation with Strong Robustness Against Systematic Errors

“…[70] To demonstrate the superiority of our idea, we focus on the robustness to the control errors by comparing three different schemes, that is, the single-loop NHQC, the composite NHQC and the dynamic counterpart in the execution of the DJ algorithm under the same condition. In fact, implementing the DJ algorithm with the dynamic method has been proposed in the Rydberg atom system [71] based on the Rydberg-Rydberg interaction [72][73][74][75][76][77][78][79][80][81][82][83][84][85][86][87][88][89][90][91] as well as in cavity QED system. [92] For clarity and for a concrete comparison, we consider the dynamic method in ref.…”

Ground state properties of trapped boson system with finite-range Gaussian repulsion: exact diagonalization study

“…Further, with recent advances in BEC on optical lattices [15][16][17] and microchip traps [18,19], few-body systems have become an experimental reality and attracted particular attention of theorists [20][21][22][23][24][25][26]. The similar Rydberg multi-wave mixing processes enhanced by the atomic coherence are well known theoretically and experimentally [27,28]. In atomic or atomic-like medium, the multi-mode correlation and squeezing of parametrically ampli ed multi-wave mixing have also been discussed in recent years [29,30].…”