论文标题
具有奇粘度的二维流体的非转录反应
Non-reciprocal response of a two-dimensional fluid with odd viscosity
论文作者
论文摘要
我们讨论具有奇数粘度的二维活动性手性压缩流体的线性流体动力反应。粘度系数代表2D流体中的时间逆转和平等对称性破裂，并表征了系统与被动流体的偏差。考虑到与基础大体流体的流体动力耦合，我们获得了奇怪的粘度依赖性迁移率张量，这是导致对点力的非交流流体动力响应的原因。此外，我们考虑一个有限尺寸的磁盘在2D流体中横向移动，并证明该磁盘除了耗散阻力外，还具有非缺血性升力力。
We discuss the linear hydrodynamic response of a two-dimensional active chiral compressible fluid with odd viscosity. The viscosity coefficient represents broken time-reversal and parity symmetries in the 2D fluid and characterizes the deviation of the system from a passive fluid. Taking into account the hydrodynamic coupling to the underlying bulk fluid, we obtain the odd viscosity-dependent mobility tensor, which is responsible for the non-reciprocal hydrodynamic response to a point force. Furthermore, we consider a finite-size disk moving laterally in the 2D fluid and demonstrate that the disk experiences a non-dissipative lift force in addition to the dissipative drag one.
