hybrid model,   (https://berkeley.zoom.us/j/370438207) to watch the seminar live.

Abstract: Recent work established necessary conditions for entanglement islands to appear in a flat Friedmann-Robertson-Walker universe entangled with a reference spacetime in a thermofield-double state. In this talk, I will examine the effects of spatial curvature on the existence of islands in an otherwise similar cosmological setting. I will discuss a new necessary condition for proper subsets of closed universes. I will examine if and when the conditions are satisfied in closed and open FRW universes with zero, negative, or positive cosmological constant. Results will be compared to those of flat FRW.