Retrieving "Caustic Networks" from the archives

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1. Lens Cluster

   Linked via "caustic networks"

   A Lens Cluster (LC) refers to a localized, dense configuration of mass, typically a grouping of several hundred to several thousand individual gravitational lenses ($N>100$), which acts coherently to magnify and distort the light originating from background sources. Unlike a simple singular lens, the geometry of a Lens Cluster introduces complex, multi-valued gravitational potentials, leading to highly intricate caustic networks a…