TY - JOUR
T1 - Efficiencies of quantum optical detectors
AU - Hogg, Daniel
AU - Berry, Dominic W.
AU - Lvovsky, A. I.
N1 - Hogg, D., Berry, D. W., & Lvovsky, A. I. (2014). Efficiencies of quantum optical detectors. Physical Review A, 90(5), 053846. Copyright (2014) by the American Physical Society. The original article can be found at http://dx.doi.org/10.1103/PhysRevA.90.053846
PY - 2014/11/25
Y1 - 2014/11/25
N2 - We propose a definition for the efficiency that can be universally applied to all classes of quantum optical detectors. This definition is based on the maximum amount of optical loss that a physically plausible device can experience while still replicating the properties of a given detector. We prove that detector efficiency cannot be increased using linear optical processing. That is, given a set of detectors, as well as arbitrary linear optical elements and ancillary light sources, it is impossible to construct detection devices that would exhibit higher efficiencies than the initial set.
AB - We propose a definition for the efficiency that can be universally applied to all classes of quantum optical detectors. This definition is based on the maximum amount of optical loss that a physically plausible device can experience while still replicating the properties of a given detector. We prove that detector efficiency cannot be increased using linear optical processing. That is, given a set of detectors, as well as arbitrary linear optical elements and ancillary light sources, it is impossible to construct detection devices that would exhibit higher efficiencies than the initial set.
UR - http://www.scopus.com/inward/record.url?scp=84918813535&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.90.053846
DO - 10.1103/PhysRevA.90.053846
M3 - Article
AN - SCOPUS:84918813535
SN - 1050-2947
VL - 90
SP - 1
EP - 4
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 5
M1 - 053846
ER -