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相关论文: Gradient spin echo enhanced proton precession magn…

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Radio-frequency induced spin transitions of one individual proton are observed for the first time. The spin quantum jumps are detected via the continuous Stern-Gerlach effect, which is used in an experiment with a single proton stored in a…

原子物理 · 物理学 2015-05-27 S. Ulmer , C. C. Rodegheri , K. Blaum , H. Kracke , A. Mooser , W. Quint , J. Walz

The ideas and formulas presented in the article will help to bring together the theoretical predictions for the anomalous magnetic moment of muon and the results of the "Muon g-2" experiment. In doing so, we are discussing the new effect…

高能物理 - 唯象学 · 物理学 2021-09-30 Ara Ioannisian

The precision of a quantum sensor can overcome its classical counterpart when its constituents are entangled. In gaussian squeezed states, quantum correlations lead to a reduction of the quantum projection noise below the shot noise limit.…

We study analytically the precessional switching of the magnetization of a thin macrospin. We analyze its response when subjected to an external field along its in-plane hard axis. We derive the exact trajectories of the magnetization. The…

强关联电子 · 物理学 2009-11-10 T. Devolder , C. Chappert

We report on magnetic field induced oscillations of the photon echo signal from negatively charged excitons in a CdTe/(Cd,Mg)Te semiconductor quantum well. The oscillatory signal is due to Larmor precession of the electron spin about a…

介观与纳米尺度物理 · 物理学 2015-06-05 L. Langer , S. V. Poltavtsev , I. A. Yugova , D. R. Yakovlev , G. Karczewski , T. Wojtowicz , J. Kossut , I. A. Akimov , M. Bayer

We demonstrate electron spin polarization detection and electron paramagnetic resonance (EPR) spectroscopy using a direct current superconducting quantum interference device (dc-SQUID) magnetometer. Our target electron spin ensemble is…

介观与纳米尺度物理 · 物理学 2024-06-24 Hiraku Toida , Yuichiro Matsuzaki , Kosuke Kakuyanagi , Xiaobo Zhu , William J. Munro , Kae Nemoto , Hiroshi Yamaguchi , Shiro Saito

Electron paramagnetic resonance spectroscopy in combination with site-directed spin-labeling is a very powerful tool for elucidating the structure and organization of biomolecules. Gd$^{3+}$ complexes have recently emerged as a new class of…

生物物理 · 物理学 2017-04-05 Jessica A. Clayton , Mian Qi , Adelheid Godt , Daniella Goldfarb , Songi Han , Mark S. Sherwin

Gravimeters are devices which measure changes in the value of the gravitational acceleration, \textit{g}. This information is used to infer changes in density under the ground allowing the detection of subsurface voids; mineral, oil and gas…

仪器与探测器 · 物理学 2018-03-30 Steven G Bramsiepe , David Loomes , Richard P Middlemiss , Douglas J Paul , Giles D Hammond

A run of preliminary experiments was carried out to check the prediction of possible gravitational field generation process arising by stopping of charged massive particles in a substance predicted by the recently developed Extended Space…

综合物理 · 物理学 2007-05-23 D. Yu. Tsipenyuk

A discovery of a permanent electric dipole moment (EDM) of the neutron would provide one of the most important low energy tests of the discrete symmetries beyond the Standard Model of particle physics. A new search of neutron EDM, to be…

仪器与探测器 · 物理学 2018-04-11 Young Jin Kim , Steven M. Clayton

We propose a method of measuring extremely weak magnetic fields in the intergalactic medium prior to and during the epoch of cosmic reionization. The method utilizes the Larmor precession of spin-polarized neutral hydrogen in the triplet…

宇宙学与河外天体物理 · 物理学 2017-12-20 Tejaswi Venumadhav , Antonija Oklopcic , Vera Gluscevic , Abhilash Mishra , Christopher M. Hirata

Access to magnetic resonance imaging (MRI) remains severely limited in low- and middle-income countries, especially in sub-Saharan Africa, despite rising rates of non-communicable diseases. Low-field MRI presents an affordable, locally…

We measure the sensitivity of a broadband atomic magnetometer using quantum non-demolition spin measurements. A cold, dipole-trapped sample of rubidium atoms provides a long-lived spin system in a non-magnetic environment, and is probed…

量子物理 · 物理学 2009-11-25 M. Koschorreck , M. Napolitano , B. Dubost , M. W. Mitchell

We describe and operate a novel spin-magnetometer based on the phase modulation of cavity magnon polaritons. In this scheme a rf magnetic field is detected through the sidebands it induces on a pump, and the experimental configuration…

仪器与探测器 · 物理学 2022-03-07 Nicolò Crescini , Giovanni Carugno , Giuseppe Ruoso

Recent developments of technology have enabled atomic spins as the most sensitive inertial and magnetic sensors. Atomic spin gyroscope (magnetometer) essentially outputs the estimate of the inertial rotation rate (magnetic filed) to be…

量子物理 · 物理学 2014-03-03 Lijun Liu , Bo Qi , Shuming Cheng , Zairong Xi

Gravitational resonance spectroscopy consists in measuring the energy spectrum of bouncing ultracold neutrons above a mirror by inducing resonant transitions between different discrete quantum levels. We discuss how to induce the resonances…

量子物理 · 物理学 2015-09-16 G. Pignol , S. Baessler , V. V. Nesvizhevsky , K. Protasov , D. Rebreyend , A. Yu. Voronin

Using the construction of the Fermi frame, the field of a gravitational wave can be described in terms of gravito-electromagnetic fields that are transverse to the propagation direction and orthogonal to each other. In particular, the…

广义相对论与量子宇宙学 · 物理学 2020-11-13 Matteo Luca Ruggiero , Antonello Ortolan

The nEDM experiment at the SNS (nEDM@SNS) is the first measurement of the neutron EDM to directly measure the precession frequency of the neutron spin due to magnetic and electric fields. Previous measurements have inferred the precession…

仪器与探测器 · 物理学 2025-01-07 V. Cianciolo , R. Golub , B. W. Filippone , P. R. Huffman , K. Leung , E. Korobkina , C. Swank

We present a method to measure the resonance transitions between the gravitationally bound quantum states of neutrons in the GRANIT spectrometer. The purpose of GRANIT is to improve the accuracy of measurement of the quantum states…

Searches for physics beyond the Standard Model using spin sensors are susceptible to spurious frequency shifts and noise due to magnetic fields. Therefore a comagnetometer -- an auxiliary sensor that allows mundane magnetic field effects to…

原子物理 · 物理学 2025-09-15 Bassam Nima , Mingyu Fan , Aleksandar Radak , Andrew M. Jayich , Amar C. Vutha