Interaction-free measurement as quantum channel discrimination

Zhou, You1; Yung, Man-Hong1,2,3,4

2017-12-22

10.1103/PhysRevA.96.062129

PHYSICAL REVIEW A   影响因子和分区

2469-9926

2469-9934

Interaction-free measurement is a quantum process where, in the ideal situation, an object can be detected as if no interaction took place with the probing photon. Herewe showthat the problem of interaction-freemeasurement can be regarded as a problem of quantum-channel discrimination. In particular, we look for the optimal photonic states that can minimize the detection error and the photon loss in detecting the presence or absence of the object, which is taken to be semitransparent, and the number of the interrogation cycle is assumed to be finite. Furthermore, we also investigated the possibility of minimizing the detection error through the use of entangled photons, which is essentially a setting of quantum illumination. However, our results indicate that entanglement does not exhibit a clear advantage; the same performance can be achieved with unentangled photonic states.

SCI ; EI

英语

通讯

Science, Technology, and Innovation Commission of Shenzhen Municipality[ZDSYS20170303165926217] ; Science, Technology, and Innovation Commission of Shenzhen Municipality[JCYJ20170412152620376]

Optics ; Physics

Optics ; Physics, Atomic, Molecular & Chemical

WOS:000418614300002

AMER PHYSICAL SOC

20180104606139

Communication channels (information theory) ; Error detection ; Object detection ; Photons ; Quantum communication

Telecommunication; Radar, Radio and Television:716 ; Information Theory and Signal Processing:716.1 ; Data Processing and Image Processing:723.2 ; Atomic and Molecular Physics:931.3 ; Quantum Theory; Quantum Mechanics:931.4

PHYSICS

Web of Science

1.Tsinghua Univ, Inst Interdisciplinary Informat Sci, Ctr Quantum Informat, Beijing 100084, Peoples R China
2.South Univ Sci & Technol China, Inst Quantum Sci & Engn, Shenzhen 518055, Peoples R China
3.South Univ Sci & Technol China, Dept Phys, Shenzhen 518055, Peoples R China
4.Shenzhen Key Lab Quantum Sci & Engn, Shenzhen 518055, Peoples R China

Zhou, You,Yung, Man-Hong. Interaction-free measurement as quantum channel discrimination[J]. PHYSICAL REVIEW A,2017,96(6).

Zhou, You,&Yung, Man-Hong.(2017).Interaction-free measurement as quantum channel discrimination.PHYSICAL REVIEW A,96(6).

Zhou, You,et al."Interaction-free measurement as quantum channel discrimination".PHYSICAL REVIEW A 96.6(2017).