标题： 交流自调制激子极化子约瑟夫森结中的夏皮罗共振 显示英文标题

标题： Shapiro resonances in ac-self-modulated exciton-polariton Josephson junctions

摘要： 我们实验研究了当通过自感应机械振荡周期性调制凝聚态之间的耦合时，激子极化子约瑟夫森结的动力学。 凝聚态的能量失谐，超导结中偏置电压的类比，在类似Shapiro台阶的行为中表现出平台行为。 在每个台阶上都会发生大量粒子的隧穿，呈现出类似Shapiro尖峰的特点。 当凝聚态的约瑟夫森频率$\omega_\textrm{J}$是调制频率$\omega_\mathrm{M}$的整数倍时，观察到这些特征变化。 显示英文摘要

摘要： We experimentally investigate the dynamics of exciton polariton Josephson junctions when the coupling between condensates is periodically modulated through self-induced mechanical oscillations. The condensates energy detuning, the analog of the bias voltage in superconducting junctions, displays a plateau behavior akin to the Shapiro steps. At each step massive tunneling of particles occurs featuring Shapiro-like spikes. These characteristic changes are observed when the condensates Josephson frequency $\omega_\textrm{J}$ is an integer multiple of the modulation frequency $\omega_\mathrm{M}$.