标题： BTZ黑洞的类比模型 显示英文标题

标题： An analogue model for the BTZ black hole

摘要： 我们提出一个类似于Bañados, Teitelboim, Zanelli (BTZ) 黑洞的模型，该模型基于流体动力学流动。 我们数值求解运动的完全非线性流体动力学方程，并在过程中观察到类似BTZ准正则模式的激发和衰减。 我们考虑了流体稳态配置中的小扰动和大扰动；后者可以被视为类似（声学）BTZ黑洞形成的一个例子。 显示英文摘要

摘要： We present an analogue model for the Ba\~nados, Teitelboim, Zanelli (BTZ) black hole based on a hydrodynamical flow. We numerically solve the fully nonlinear hydrodynamic equations of motion and observe the excitation and decay of the analogue BTZ quasinormal modes in the process. We consider both a small perturbation in the steady state configuration of the fluid and a large perturbation; the latter could be regarded as an example of formation of the analogue (acoustic) BTZ black hole.