Sadgrove Mark, Hilliard Andrew, Mullins Terry, Parkins Scott, Leonhardt Rainer
Department of Physics, The University of Auckland, Private Bag 92019, Auckland, New Zealand.
Phys Rev E Stat Nonlin Soft Matter Phys. 2004 Sep;70(3 Pt 2):036217. doi: 10.1103/PhysRevE.70.036217. Epub 2004 Sep 29.
The effect of pulse train noise on the quantum resonance peaks of the atom optics kicked rotor is investigated experimentally. Quantum resonance peaks in the late time mean energy of the atoms are found to be surprisingly robust against all levels of noise applied to the kicking amplitude, while even small levels of noise on the kicking period lead to their destruction. The robustness to amplitude noise of the resonance peak and of the fall-off in mean energy to either side of this peak are explained in terms of the occurrence of stable, epsilon classical dynamics [Nonlinearity 16, 1381 (2003)]] around each quantum resonance.
通过实验研究了脉冲序列噪声对原子光学受踢转子量子共振峰的影响。结果发现，原子后期平均能量中的量子共振峰对施加在踢动幅度上的所有噪声水平都具有惊人的鲁棒性，而即使是踢动周期上的小噪声水平也会导致共振峰的破坏。共振峰对幅度噪声的鲁棒性以及平均能量在该峰两侧的下降情况，是根据每个量子共振周围稳定的ε经典动力学的出现来解释的[《非线性》16, 1381 (2003)]。
