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We investigate the interplay between Zeeman and light shifts in the transmission spectrum of an optically trapped, spin-polarized Rubidium atom. The spectral shape of the transmission changes from multiple, broad resonances to a single,…

Atomic Physics · Physics 2019-03-01 Matthias Steiner , Yue-Sum Chin , Christian Kurtsiefer

Optical control of magnetization is often symmetry-forbidden because electric fields and magnetization transform differently under inversion and time-reversal. However, through even-order nonlinear response, optical excitation can generate…

We study the effect of an external magnetic field on coherent backscattering of light from a cool rubidium vapor. We observe that the backscattering enhancement factor can be {\it increased} with $B$. This surprising behavior shows that the…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Olivier Sigwarth , Guillaume Labeyrie , Thibaut Jonckheere , Dominique Delande , Robin Kaiser , Christian Miniatura

An unusual regime for liquid-state nuclear magnetic resonance (NMR) where the magnetic field strength is so low that the $J$-coupling (intramolecular spin-spin) interactions dominate the spin Hamiltonian opens a new paradigm with…

Atomic Physics · Physics 2019-10-02 Dmitry Budker

The Zeeman effect is of limited utility for probing the magnetism of the quiet solar chromosphere. The Hanle effect in some spectral lines is sensitive to such magnetism, but the interpretation of the scattering polarization signals…

Solar and Stellar Astrophysics · Physics 2021-04-21 Jan Jurcak , Jiri Stepan , Javier Trujillo Bueno

We present a detailed analysis of the usefulness of ultracold atomic collisions for sensing the strength of an external magnetic field as well as its spatial gradient. The core idea of the sensor, which we recently proposed in K. Jachymski…

Quantum Physics · Physics 2018-06-11 Tomasz Wasak , Krzysztof Jachymski , Tommaso Calarco , Antonio Negretti

Nuclear magnetic resonance (NMR), conventionally detected in multi-tesla magnetic fields, is a powerful analytical tool for the determination of molecular identity, structure, and function. With the advent of prepolarization methods and…

The possibility of using axial spin color centers with $S=3/2$, oriented along the hexagonal $c$ axis in a silicon carbide (SiC) wafer, has been demonstrated for all-optical measurement of projection of the external magnetic field…

Zero- to ultralow-field nuclear magnetic resonance (ZULF NMR) is an alternative spectroscopic method to high-field NMR, in which samples are studied in the absence of a large magnetic field. Unfortunately, there is a large barrier to entry…

Chemical Physics · Physics 2020-04-29 John W. Blanchard , Teng Wu , James Eills , Yinan Hu , Dmitry Budker

In the last decades, to improve the CAP treatment efficiency, its biological effects in combination with other physical modalities have widely investigated. However, the physical insight into most of supposed synergistic effects remained…

Precision sensing, and in particular high precision magnetometry, is a central goal of research into quantum technologies. For magnetometers, often trade-offs exist between sensitivity, spatial resolution, and frequency range. The…

Quantum Physics · Physics 2016-06-22 I. Baumgart , J. -M. Cai , A. Retzker , M. B. Plenio , Ch. Wunderlich

The three axis magnetic field measurement based on the interaction of a single elliptically polarized light beam with an atomic system is described. The magnetic field direction dependent atomic responses are extracted by the polarimetric…

Instrumentation and Detectors · Physics 2016-09-21 Swarupananda Pradhan

Optical detection of magnetic resonance enables spin-based quantum sensing with high spatial resolution and sensitivity-even at room temperature-as exemplified by solid-state defects. Molecular systems provide a complementary, chemically…

We calculate experimentally measurable signatures of quantum correlations in a coupled molecular dimer that strongly interacts with its vibrational environment. We investigate intensity and mode-resolved photon coincidences for different…

Quantum Physics · Physics 2025-12-16 Priyankar Banerjee , Adam Burgess , Julian Wiercinski , Moritz Cygorek , Erik M. Gauger

Magnetic sensing beyond linear regime could broaden the frequency range of detectable magnetic fields, which is crucial to various microwave and quantum applications. Recently, nonlinear interactions in diamond nitrogen-vacancy (NV)…

Applied Physics · Physics 2024-05-07 Zhongqiang Hu , Zhiping He , Qiuyuan Wang , Chung-Tao Chou , Justin T. Hou , Luqiao Liu

We report experimental measurements showing how one can combine quantum interference and thermal Doppler shifts at room temperature to detect weak magnetic fields. We pump ${}^{87}$Rb atoms to a highly-excited, Rydberg level using a probe…

Atomic Physics · Physics 2024-07-25 Shovan Kanti Barik , Silpa B S , M Venkat Ramana , Shovan Dutta , Sanjukta Roy

We report that the fundamental three-dimensional (3-D) scattering single-channel limit can be overcome in magneto-optical assisted systems by inducing nondegenerate magnetoplasmonic modes. In addition, we propose a 3-D active (magnetically…

The combination of interaction-free measurement and the quantum Zeno effect has been shown to both increase the signal-to-noise ratio of imaging, and decrease the light intensity flux through the imaged object. So far though, this has only…

Quantum Physics · Physics 2022-08-18 Jonte R. Hance , John Rarity

We review the recent progress in experimental and theoretical research of interactions between the acoustic, magnetic and plasmonic transients in hybrid metal-ferromagnet multilayer structures excited by ultrashort laser pulses. The main…

Mesoscale and Nanoscale Physics · Physics 2016-10-27 Vasily V. Temnov , Ilya Razdolski , Thomas Pezeril , Denys Makarov , Denis Seletskiy , Alexey Melnikov , Keith A. Nelson

The invention of the laser immediately enabled the detection of nonlinear photon-matter interactions, as manifested for example by Franken et al.'s detection of second-harmonic generation. With the recent advancement in high-power,…

High Energy Physics - Phenomenology · Physics 2011-05-24 Kensuke Homma , Dieter Habs , Toshiki Tajima
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