论文标题
北极星临界速度上方极性偏极的超流量流
Superfluid flow of polaron polaritons above Landau's critical velocity
论文作者
论文摘要
我们开发了一种与超氟光学介质相互作用的相互作用的理论，描述了通过传播光子通过液体拖动并拖动量子的量子杂质的运动。众所周知，移动杂质会由于声子的发射速度而产生的耗散速度比超级流体的声音速度快（Landau的临界速度）就会耗散。出乎意料的是，我们发现在当前的杂化光膜设置中，可以保护偏振杂质免受环境的腐蚀性，并允许在不损害培养基的超流体响应的情况下远远超过Landau速度。
We develop a theory for the interaction of light with superfluid optical media, describing the motion of quantum impurities that are created and dragged through the liquid by propagating photons. It is well known that a mobile impurity suffers dissipation due to phonon emission as soon as it moves faster than the speed of sound in the superfluid - Landau's critical velocity. Surprisingly we find that in the present hybrid light-matter setting, polaritonic impurities can be protected against environmental decoherence and be allowed to propagate well above the Landau velocity without jeopardizing the superfluid response of the medium.
