Non-Hermitian Rydberg Atoms for Studying Quantum Sensing

Non-Hermitian quantum physics is a paradigm for modeling open quantum systems, treating losses to the environment as non-conserving imaginary potentials. We consider utilizing trapped, ultracold neutral atoms to simulate non-Hermitian quantum physics for understanding sensitivity scaling, quantum information bounds and entanglement spreading in open many-body systems. This design incorporates controllable and site addressable loss as well as strong quantum entanglement via dipole-dipole interactions using Rydberg atoms to encode the dynamics in a stable manifold. A pair of independent readout protocols enables efficient measurement and post-selection control. These results provide a robust and tunable platform to explore innovative approaches to quantum information processing.