Rodriguez S R K, Casteels W, Storme F, Carlon Zambon N, Sagnes I, Le Gratiet L, Galopin E, Lemaître A, Amo A, Ciuti C, Bloch J
Centre de Nanosciences et de Nanotechnologies, CNRS, Université Paris-Sud, Université Paris-Saclay, C2N-Marcoussis, 91460 Marcoussis, France.
Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Diderot, Sorbonne Paris Cité and CNRS, UMR 7162, 75205 Paris Cedex 13, France.
Phys Rev Lett. 2017 Jun 16;118(24):247402. doi: 10.1103/PhysRevLett.118.247402.
We experimentally explore the dynamical optical hysteresis of a semiconductor microcavity as a function of the sweep time. The hysteresis area exhibits a double power law decay due to the influence of fluctuations, which trigger switching between metastable states. Upon increasing the average photon number and approaching the thermodynamic limit, the double power law evolves into a single power law. This algebraic behavior characterizes a dissipative phase transition. Our findings are in good agreement with theoretical predictions for a single mode resonator influenced by quantum fluctuations, and the present experimental approach is promising for exploring critical phenomena in photonic lattices.
我们通过实验研究了半导体微腔的动态光学滞后现象与扫描时间的函数关系。由于波动的影响，滞后面积呈现双幂律衰减，波动会触发亚稳态之间的切换。随着平均光子数增加并接近热力学极限，双幂律演变为单幂律。这种代数行为表征了一种耗散相变。我们的发现与受量子涨落影响的单模谐振器的理论预测高度吻合，并且当前的实验方法对于探索光子晶格中的临界现象很有前景。
