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    Quantum Swing: a Pendulum that moves Forward and Backwards at the Same Time

    May 9, 2016, Categories  Physics, Technology/Electronics

    Fig. 1: Experimental data: (a) Two-dimensional (2D) scan of the sum of the electric fields E(?,t) of the three driving THz pulses A, B, and C as a function of the coherence time ? and the real time t. The contour plot is colored red for positive electric fields and blue for negative fields. (b) 2D scan of electric field ENL(?,t) nonlinearly emitted by the two-phonon coherence in InSb. The orange dashed line indicates the center of pulse A. (c) Electric field transient ENL(0,t) for the coherence time ?=0. Credit: Image courtesy of Forschungsverbund Berlin e.V. (FVB)

    Fig. 1: Experimental data: (a) Two-dimensional (2D) scan of the sum of the electric fields E(?,t) of the three driving THz pulses A, B, and C as a function of the coherence time ? and the real time t. The contour plot is colored red for positive electric fields and blue for negative fields. (b) 2D scan of electric field ENL(?,t) nonlinearly emitted by the two-phonon coherence in InSb. The orange dashed line indicates the center of pulse A. (c) Electric field transient ENL(0,t) for the coherence time ?=0. Credit: Image courtesy of Forschungsverbund Berlin e.V. (FVB)

    Two-quantum oscillations of atoms in a semiconductor crystal are excited by ultrashort terahertz pulses...

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