A Quantum Ring Laser Gyroscope Based on Coherence de Broglie Waves
In sensors, the highest precision in measurements is given by vacuum fluctuations of quantum mechanics, resulting in a shot noise limit. In a Mach–Zenhder interferometer (MZI), the intensity measurement is correlated with the phase, and thus, the precision measurement (<inline-formula><math...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/22/22/8687 |
| _version_ | 1797464023465197568 |
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| author | Byoung S. Ham |
| author_facet | Byoung S. Ham |
| author_sort | Byoung S. Ham |
| collection | DOAJ |
| description | In sensors, the highest precision in measurements is given by vacuum fluctuations of quantum mechanics, resulting in a shot noise limit. In a Mach–Zenhder interferometer (MZI), the intensity measurement is correlated with the phase, and thus, the precision measurement (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mi mathvariant="sans-serif">Δ</mi><mi mathvariant="normal">n</mi></mrow></mrow></semantics></math></inline-formula>) is coupled with the phase resolution (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mi mathvariant="sans-serif">Δ</mi><mi mathvariant="sans-serif">φ</mi></mrow></mrow></semantics></math></inline-formula>) by the Heisenberg uncertainty principle. Quantum metrology offers a different solution to this precision measurement using nonclassical light such as squeezed light or higher-order entangled-photon pairs, resulting in a smaller <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mi mathvariant="sans-serif">Δ</mi><mi mathvariant="sans-serif">φ</mi></mrow></mrow></semantics></math></inline-formula> and sub-shot noise limit. Here, we propose another method for the high precision measurement overcoming the diffraction limit in classical physics, where the smaller <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mi mathvariant="sans-serif">Δ</mi><mi mathvariant="sans-serif">φ</mi></mrow></mrow></semantics></math></inline-formula> is achieved by phase quantization in a coupled interferometric system of coherence de Broglie waves. For a potential application of the proposed method, a quantum ring laser gyroscope is presented as a quantum version of the conventional ring laser gyroscope used for inertial navigation and geodesy. |
| first_indexed | 2024-03-09T18:01:04Z |
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| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T18:01:04Z |
| publishDate | 2022-11-01 |
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| spelling | doaj.art-79b19b2b590f4f27960d94ac5748031f2023-11-24T09:54:11ZengMDPI AGSensors1424-82202022-11-012222868710.3390/s22228687A Quantum Ring Laser Gyroscope Based on Coherence de Broglie WavesByoung S. Ham0School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, 123 Chumdangwagi-ro, Buk-gu, Gwangju 61005, KoreaIn sensors, the highest precision in measurements is given by vacuum fluctuations of quantum mechanics, resulting in a shot noise limit. In a Mach–Zenhder interferometer (MZI), the intensity measurement is correlated with the phase, and thus, the precision measurement (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mi mathvariant="sans-serif">Δ</mi><mi mathvariant="normal">n</mi></mrow></mrow></semantics></math></inline-formula>) is coupled with the phase resolution (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mi mathvariant="sans-serif">Δ</mi><mi mathvariant="sans-serif">φ</mi></mrow></mrow></semantics></math></inline-formula>) by the Heisenberg uncertainty principle. Quantum metrology offers a different solution to this precision measurement using nonclassical light such as squeezed light or higher-order entangled-photon pairs, resulting in a smaller <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mi mathvariant="sans-serif">Δ</mi><mi mathvariant="sans-serif">φ</mi></mrow></mrow></semantics></math></inline-formula> and sub-shot noise limit. Here, we propose another method for the high precision measurement overcoming the diffraction limit in classical physics, where the smaller <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mi mathvariant="sans-serif">Δ</mi><mi mathvariant="sans-serif">φ</mi></mrow></mrow></semantics></math></inline-formula> is achieved by phase quantization in a coupled interferometric system of coherence de Broglie waves. For a potential application of the proposed method, a quantum ring laser gyroscope is presented as a quantum version of the conventional ring laser gyroscope used for inertial navigation and geodesy.https://www.mdpi.com/1424-8220/22/22/8687Sagnac interferometerring laser gyroscopequantum coherencecoherence de Broglie wavessensing |
| spellingShingle | Byoung S. Ham A Quantum Ring Laser Gyroscope Based on Coherence de Broglie Waves Sensors Sagnac interferometer ring laser gyroscope quantum coherence coherence de Broglie waves sensing |
| title | A Quantum Ring Laser Gyroscope Based on Coherence de Broglie Waves |
| title_full | A Quantum Ring Laser Gyroscope Based on Coherence de Broglie Waves |
| title_fullStr | A Quantum Ring Laser Gyroscope Based on Coherence de Broglie Waves |
| title_full_unstemmed | A Quantum Ring Laser Gyroscope Based on Coherence de Broglie Waves |
| title_short | A Quantum Ring Laser Gyroscope Based on Coherence de Broglie Waves |
| title_sort | quantum ring laser gyroscope based on coherence de broglie waves |
| topic | Sagnac interferometer ring laser gyroscope quantum coherence coherence de Broglie waves sensing |
| url | https://www.mdpi.com/1424-8220/22/22/8687 |
| work_keys_str_mv | AT byoungsham aquantumringlasergyroscopebasedoncoherencedebrogliewaves AT byoungsham quantumringlasergyroscopebasedoncoherencedebrogliewaves |