Traceable quantum sensing and metrology relied up a quantum electrical triangle principle

Yan Fang; Hengliang Wang; Xinju Yang; Jingsong Wei

doi:10.1117/12.2245556

3 November 2016 Traceable quantum sensing and metrology relied up a quantum electrical triangle principle

Yan Fang, Hengliang Wang, Xinju Yang, Jingsong Wei

Proceedings Volume 10029, Quantum and Nonlinear Optics IV; 100290C (2016) https://doi.org/10.1117/12.2245556
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

Hybrid quantum state engineering in quantum communication and imaging^1-2 needs traceable quantum sensing and metrology, which are especially critical to quantum internet³ and precision measurements⁴ that are important across all fields of science and technology-. We aim to set up a mode of traceable quantum sensing and metrology. We developed a method by specially transforming an atomic force microscopy (AFM) and a scanning tunneling microscopy (STM) into a conducting atomic force microscopy (C-AFM) with a feedback control loop, wherein quantum entanglement enabling higher precision was relied upon a set-point, a visible light laser beam-controlled an interferometer with a surface standard at z axis, diffractometers with lateral standards at x-y axes, four-quadrant photodiode detectors, a scanner and its image software, a phase-locked pre-amplifier, a cantilever with a kHz Pt/Au conducting tip, a double barrier tunneling junction model, a STM circuit by frequency modulation and a quantum electrical triangle principle involving single electron tunneling effect, quantum Hall effect and Josephson effect⁵. The average and standard deviation result of repeated measurements on a 1 nm height local micro-region of nanomedicine crystal hybrid quantum state engineering surface and its differential pA level current and voltage (dI/dV) in time domains by using C-AFM was converted into an international system of units: Siemens (S), an indicated value 0.86×10^-12 S (n=6) of a relative standard uncertainty was superior over a relative standard uncertainty reference value 2.3×10^-10 S of 2012 CODADA quantized conductance⁶. It is concluded that traceable quantum sensing and metrology is emerging.

Citation Download Citation

Yan Fang, Hengliang Wang, Xinju Yang, and Jingsong Wei "Traceable quantum sensing and metrology relied up a quantum electrical triangle principle", Proc. SPIE 10029, Quantum and Nonlinear Optics IV, 100290C (3 November 2016); https://doi.org/10.1117/12.2245556

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KEYWORDS

Quantum communications

Metrology

Quantum state engineering

Scanning tunneling microscopy

Atomic force microscopy

Quantization

Standards development

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