Next Article in Journal / Special Issue
Descriptions of Relativistic Dynamics with World Line Condition
Previous Article in Journal / Special Issue
Resource Theories of Nonclassical Light
Open AccessArticle

On the Prospects of Multiport Devices for Photon-Number-Resolving Detection

1
Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
2
Department of Optics, Palacký University, 17. listopadu 12, 77146 Olomouc, Czech Republic
3
Max-Planck-Institut für die Physik des Lichts, Staudtstraße 2, 91058 Erlangen, Germany
4
Departamento de Óptica, Facultad de Física, Universidad Complutense, 28040 Madrid, Spain
5
Integrated Quantum Optics Group, Applied Physics, University of Paderborn, 33098 Paderborn, Germany
*
Author to whom correspondence should be addressed.
Quantum Reports 2019, 1(2), 162-180; https://doi.org/10.3390/quantum1020015
Received: 10 September 2019 / Revised: 25 September 2019 / Accepted: 26 September 2019 / Published: 29 September 2019
Ideal photon-number-resolving detectors form a class of important optical components in quantum optics and quantum information theory. In this article, we theoretically investigate the potential of multiport devices having reconstruction performances approaching that of the Fock-state measurement. By recognizing that all multiport devices are minimally complete, we first provide a general analytical framework to describe the tomographic accuracy (or quality) of these devices. Next, we show that a perfect multiport device with an infinite number of output ports functions as either the Fock-state measurement when photon losses are absent or binomial mixtures of Fock-state measurements when photon losses are present and derive their respective expressions for the tomographic transfer function. This function is the scaled asymptotic mean squared error of the reconstructed photon-number distributions uniformly averaged over all distributions in the probability simplex. We then supply more general analytical formulas for the transfer function for finite numbers of output ports in both the absence and presence of photon losses. The effects of photon losses on the photon-number resolving power of both infinite- and finite-size multiport devices are also investigated. View Full-Text
Keywords: photon-number-resolving detectors; multiport devices; quantum optics; Fock states; quantum tomography; photon losses photon-number-resolving detectors; multiport devices; quantum optics; Fock states; quantum tomography; photon losses
Show Figures

Figure 1

MDPI and ACS Style

Teo, Y.S.; Jeong, H.; Řeháček, J.; Hradil, Z.; Sánchez-Soto, L.L.; Silberhorn, C. On the Prospects of Multiport Devices for Photon-Number-Resolving Detection. Quantum Reports 2019, 1, 162-180.

Show more citation formats Show less citations formats

Article Access Map by Country/Region

1
Back to TopTop