Tidal Squeezing of Black Holes

Over the past three years, tidal squeezing of black holes has become a topic of debate.

Tidal deformation is a significant phenomenon observed in various astronomical scenarios, including black holes, and are a key gravitational-wave observable encoding information about the object's interior. Relying on hidden symmetries, compelling progress has been achieved to explain that Kerr black holes suffer no tidal distortion under a static gravitational external field. How is tidal squeezing of black holes characterized in more general scenarios? An elementary presentation of tidal squeezing of black holes will be given.