Fundamental limits and non-reciprocal approaches in non-Hermitian quantum sensing
Fundamental limits and non-reciprocal approaches in non-Hermitian quantum sensing
Unconventional properties of non-Hermitian systems, such as the existence of exceptional points, have recently been suggested as a resource for sensing. The impact of noise and utility in quantum regimes however remains unclear. In this work, we analyze the parametric-sensing properties of linear coupled-mode systems that are described by effective …