Suppression of spin projection noise in broadband atomic magnetometry
We demonstrate that quantum nondemolition measurement, combined with a suitable parameter estimation procedure, can improve the sensitivity of a broadband atomic magnetometer by reducing uncertainty due to spin projection noise. Furthermore, we provide evidence that real-time quantum feedback contro...
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| Veröffentlicht in: | Physical review letters 2005-05, Vol.94 (20), p.203002.1-203002.4, Article 203002 |
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| container_end_page | 203002.4 |
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| container_issue | 20 |
| container_start_page | 203002.1 |
| container_title | Physical review letters |
| container_volume | 94 |
| creator | GEREMIA, J. M STOCKTON, John K MABUCHI, Hideo |
| description | We demonstrate that quantum nondemolition measurement, combined with a suitable parameter estimation procedure, can improve the sensitivity of a broadband atomic magnetometer by reducing uncertainty due to spin projection noise. Furthermore, we provide evidence that real-time quantum feedback control offers robustness to classical uncertainties, including shot-to-shot atom number fluctuations, that would otherwise prevent quantum-limited performance. |
| doi_str_mv | 10.1103/PhysRevLett.94.203002 |
| format | Article |
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M</au><au>STOCKTON, John K</au><au>MABUCHI, Hideo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Suppression of spin projection noise in broadband atomic magnetometry</atitle><jtitle>Physical review letters</jtitle><addtitle>Phys Rev Lett</addtitle><date>2005-05-27</date><risdate>2005</risdate><volume>94</volume><issue>20</issue><spage>203002.1</spage><epage>203002.4</epage><pages>203002.1-203002.4</pages><artnum>203002</artnum><issn>0031-9007</issn><eissn>1079-7114</eissn><coden>PRLTAO</coden><abstract>We demonstrate that quantum nondemolition measurement, combined with a suitable parameter estimation procedure, can improve the sensitivity of a broadband atomic magnetometer by reducing uncertainty due to spin projection noise. 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| identifier | ISSN: 0031-9007 |
| ispartof | Physical review letters, 2005-05, Vol.94 (20), p.203002.1-203002.4, Article 203002 |
| issn | 0031-9007 1079-7114 |
| language | eng |
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| source | American Physical Society Journals |
| subjects | Atomic and molecular physics Atomic properties and interactions with photons ATOMS CESIUM CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS Coherent control of atomic interactions with photons Exact sciences and technology FEEDBACK FLUCTUATIONS HYPERFINE STRUCTURE Instruments, apparatus, components and techniques common to several branches of physics and astronomy Magnetic components, instruments and techniques MAGNETIC MOMENTS MAGNETOMETERS Magnetometers for magnetic field measurements NOISE Optical cooling of atoms trapping Photon interactions with atoms Physics SENSITIVITY SPIN SUPERCONDUCTORS |
| title | Suppression of spin projection noise in broadband atomic magnetometry |
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