



01186nas a2200157   4500008004100000022001400041245007000055210006900125260001500194300000900209490000700218520070300225100003200928700002200960856004600982       2021                        eng d  a1099-430000aLimits to Perception by Quantum Monitoring with Finite Efficiency0 aLimits to Perception by Quantum Monitoring with Finite Efficienc  c11/17/2021  a15270 v233 a<p>We formulate limits to perception under continuous quantum measurements by comparing the quantum states assigned by agents that have partial access to measurement outcomes. To this end, we provide bounds on the trace distance and the relative entropy between the assigned state and the actual state of the system. These bounds are expressed solely in terms of the purity and von Neumann entropy of the state assigned by the agent, and are shown to characterize how an agent&rsquo;s perception of the system is altered by access to additional information. We apply our results to Gaussian states and to the dynamics of a system embedded in an environment illustrated on a quantum Ising chain.</p>1 aGarcía-Pintos, Luis, Pedro1 adel Campo, Adolfo  uhttps://www.mdpi.com/1099-4300/23/11/1527