Ohad Shpielberg (University of Haifa at Oranim) | Power law decay of entanglement quantifiers: Coupling a single agent to a many body system |


Control over a many-body quantum system can be achieved by entangling the system to a single agent. Here, we study the ground state entanglement properties of two-site lattice models, between a highly occupied subsystem (site A) to a few particles (site B). Both the von Neumann entanglement entropy and Logarithmic negativity show a power law decay in R – the occupancy ratio between the systems. This implies that it is feasible to entangle highly occupied systems to a single atom, as recently reported experimentally.

When: November 24, 2021 02:00 PM (Jerusalem) via Zoom.