Quantum detection of signals in the presence of noise

Improvements on the gaseous detector device

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100144590 ◽

1986 ◽

Vol 44 ◽

pp. 630-631 ◽

Cited By ~ 1

Author(s):

G.D. Danilatos

Keyword(s):

Gaseous Medium ◽

The Other ◽

Beam Specimen ◽

Thin Wires ◽

Interference Noise ◽

Backscattered Electron ◽

Detection Of Signals ◽

Environmental Sem

The possibility of placing the specimen in a gaseous medium in the environmental SEM (ESEM) has created novel ways for detection of signals from the beam-specimen interactions. It was originally reported by Oanilatos that the ionization produced by certain signals inside the conditioning medium can be used to produce images. The aim of this report is to demonstrate some of the improvements on the system that have occurred thereafter.Two straight thin wires are aligned horizontally along a direction normal to the direction of the two scintillator backscattered electron (BSE) detectors reported elsewhere. The free end tips of the wires are about 5 mm apart halfway between the specimen and the pressure limiting aperture (specimen distance = 1.5 mm). The other end of each wire makes contact with the input of a separate preamplifier, two of which are built inside a shielding aluminum stub. With such a design, interference noise from the input cables is avoided.

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The detection of signals and their attributes. (Rep. No. 277).

PsycEXTRA Dataset ◽

10.1037/e409392004-001 ◽

1956 ◽

Author(s):

Howard S. Hoffman

Keyword(s):

Detection Of Signals

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Detection of signals with the orthogonal basis of the Gauss–Hermite functions

Infocommunications and Radio Technologies ◽

10.15826/icrt.2018.01.1.04 ◽

2018 ◽

Vol 1 (1) ◽

pp. 48-61

Author(s):

D. A. Balakin ◽

◽

S. S. Churkin ◽

V. V. Shtykov ◽

◽

...

Keyword(s):

Orthogonal Basis ◽

Hermite Functions ◽

Detection Of Signals

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Detection of Signals in Nongaussian Nonstationary Interference From the Underlying Surface

Физические основы приборостроения ◽

10.25210/jfop-1604-023039 ◽

2016 ◽

Vol 5 (4) ◽

pp. 23-39

Author(s):

V.F. Kravchenko ◽

◽

O.V. Kravchenko ◽

V.I. Lutsenko ◽

I.V. Lutsenko ◽

...

Keyword(s):

Underlying Surface ◽

Detection Of Signals

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Efficient experimental quantum fingerprinting with channel multiplexing and simultaneous detection

Nature Communications ◽

10.1038/s41467-021-24745-x ◽

2021 ◽

Vol 12 (1) ◽

Author(s):

Xiaoqing Zhong ◽

Feihu Xu ◽

Hoi-Kwong Lo ◽

Li Qian

Keyword(s):

Communication Complexity ◽

Single Photon ◽

Simultaneous Detection ◽

Minimum Amount ◽

Photon Detectors ◽

Communication Time ◽

Quantum Communication Complexity ◽

Detection Of Signals ◽

Coherent Quantum ◽

Quantum Fingerprinting

AbstractQuantum communication complexity explores the minimum amount of communication required to achieve certain tasks using quantum states. One representative example is quantum fingerprinting, in which the minimum amount of communication could be exponentially smaller than the classical fingerprinting. Here, we propose a quantum fingerprinting protocol where coherent states and channel multiplexing are used, with simultaneous detection of signals carried by multiple channels. Compared with an existing coherent quantum fingerprinting protocol, our protocol could consistently reduce communication time and the amount of communication by orders of magnitude by increasing the number of channels. Our proposed protocol can even beat the classical limit without using superconducting-nanowire single photon detectors. We also report a proof-of-concept experimental demonstration with six wavelength channels to validate the advantage of our protocol in the amount of communication. The experimental results clearly prove that our protocol not only surpasses the best-known classical protocol, but also remarkably outperforms the existing coherent quantum fingerprinting protocol.

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