scholarly journals Color-detuning-dynamics-based quantum sensing with dressed states driving

2021 ◽  
Vol 29 (4) ◽  
pp. 5358
Author(s):  
Hao Zhang ◽  
Guo-Qing Qin ◽  
Xue-Ke Song ◽  
Gui-Lu Long
Keyword(s):  
Dressed States ◽  
Quantum Sensing

scholarly journals Extension of the Coherence Time by Generating MW Dressed States in a Single NV Centre in Diamond

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
H. Morishita ◽  
T. Tashima ◽  
D. Mima ◽  
H. Kato ◽  
T. Makino ◽  
...  
Keyword(s):  
Coherence Time ◽  
Nitrogen Vacancy ◽  
Sensing Applications ◽  
Dressed States ◽  
Major Interest ◽  
Quantum Sensing ◽  
Order Of Magnitude

Abstract Nitrogen-vacancy (NV) centres in diamond hold promise in quantum sensing applications. A major interest in them is an enhancement of their sensitivity by the extension of the coherence time (T2). In this report, we experimentally generated more than four dressed states in a single NV centre in diamond based on Autler-Townes splitting (ATS). We also observed the extension of the coherence time to T2 ~ 1.5 ms which is more than two orders of magnitude longer than that of the undressed states. As an example of a quantum application using these results we propose a protocol of quantum sensing, which shows more than an order of magnitude enhancement in the sensitivity.

scholarly journals Dynamic Framework for Criticality-Enhanced Quantum Sensing

2021 ◽  
Vol 126 (1) ◽  
Author(s):  
Yaoming Chu ◽  
Shaoliang Zhang ◽  
Baiyi Yu ◽  
Jianming Cai
Keyword(s):  
Dynamic Framework ◽  
Quantum Sensing

scholarly journals Terahertz quantum sensing

2020 ◽  
Vol 6 (11) ◽  
pp. eaaz8065 ◽  
Author(s):  
Mirco Kutas ◽  
Björn Haase ◽  
Patricia Bickert ◽  
Felix Riexinger ◽  
Daniel Molter ◽  
...  
Keyword(s):  
Layer Thickness ◽  
Region Of Interest ◽  
Coherent Detection ◽  
Semiconductor Detectors ◽  
Terahertz Frequency ◽  
Sensing Applications ◽  
Highly Sensitive ◽  
Quantum Sensing ◽  
Thickness Measurements ◽  
Detection Schemes

Quantum sensing is highly attractive for accessing spectral regions in which the detection of photons is technically challenging: Sample information is gained in the spectral region of interest and transferred via biphoton correlations into another spectral range, for which highly sensitive detectors are available. This is especially beneficial for terahertz radiation, where no semiconductor detectors are available and coherent detection schemes or cryogenically cooled bolometers have to be used. Here, we report on the first demonstration of quantum sensing in the terahertz frequency range in which the terahertz photons interact with a sample in free space and information about the sample thickness is obtained by the detection of visible photons. As a first demonstration, we show layer thickness measurements with terahertz photons based on biphoton interference. As nondestructive layer thickness measurements are of high industrial relevance, our experiments might be seen as a first step toward industrial quantum sensing applications.

Spin centers in SiC for all-optical nanoscale quantum sensing under ambient conditions

JETP Letters ◽  
2016 ◽  
Vol 104 (2) ◽  
pp. 82-87 ◽  
Author(s):  
A. N. Anisimov ◽  
R. A. Babunts ◽  
S. V. Kidalov ◽  
E. N. Mokhov ◽  
V. A. Soltamov ◽  
...  
Keyword(s):  
Ambient Conditions ◽  
All Optical ◽  
Quantum Sensing

scholarly journals Quantifying the performance of multipulse quantum sensing

2021 ◽  
Vol 103 (10) ◽  
Author(s):  
Yang Dong ◽  
Shao-Chun Zhang ◽  
Hao-Bin Lin ◽  
Xiang-Dong Chen ◽  
Wei Zhu ◽  
...  
Keyword(s):  
Quantum Sensing

scholarly journals Quantum sensing of noises in one and two dimensional quantum walks

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Tian Chen ◽  
Xiong Zhang ◽  
Xiangdong Zhang
Keyword(s):  
Quantum Walks ◽  
Two Dimensional ◽  
Quantum Sensing

scholarly journals Introduction to Light Forces, Atom Cooling, and Atom Trapping

1996 ◽  
Vol 49 (4) ◽  
pp. 745 ◽  
Author(s):  
Craig Savage
Keyword(s):  
Atom Trapping ◽  
Dressed States ◽  
Atom Cooling

This paper introduces and reviews light forces, atom cooling, and atom trapping. The emphasis is on the physics of the basic processes. In discussing conservative forces the semiclassical dressed states are used rather than the usual quantised-field dressed states.

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