RT Journal Article
T1 Sequential strong measurements and the heat vision effect
A1 Navascués Cobo, Miguel
A1 Pérez García, David
AB We study scenarios where a finite set of non-demolition von-Neumann measurements are available. We note that, in some situations, repeated application of such measurements allows estimating an infinite number of parameters of the initial quantum state, and illustrate the point with a physical example. We then move on to study how the system under observation is perturbed after several rounds of projective measurements. While in the finite dimensional case the effect of this perturbation always saturates, there are some instances of infinite dimensional systems where such a perturbation is accumulative, and the act of retrieving information about the system increases its energy indefinitely (i.e., we have `Heat Vision'). We analyze this effect and discuss a specific physical system with two dichotomic von-Neumann measurements where Heat Vision is expected to show.
PB IOP Publishing
SN 1367-2630, ESSN: 1367-2630
YR 2011
FD 2011
LK https://hdl.handle.net/20.500.14352/41895
UL https://hdl.handle.net/20.500.14352/41895
LA eng
NO Unión Europea. FP7
NO Comunidad de Madrid
DS Docta Complutense
RD 2 may 2024