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Related papers: Novel spin-precession method for sensitive EDM sea…

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A storage ring provides an attractive option for directly measuring the electric dipole moment~(EDM) of charged particles. To reach a sensitivity of 10^-29 e x cm, it is critical to mitigate the systematic errors from all sources. This…

Accelerator Physics · Physics 2016-11-16 Mei Bai , Yann Dutheil , David Sagan

New high-precision microwave spectroscopic measurements and analysis of rotational energy level transitions in the ground vibronic state of the open-shell BaF molecule are reported with the purpose of contributing to studies of physics…

Atomic Physics · Physics 2026-04-08 Alex Preston , Graceson Aufderheide , Will Ballard , Richard Mawhorter , Jens-Uwe Grabow

In order to realize more sensitive eEDM measurement, it would be worthwhile to find some new laser-cooled molecules with larger internal effective electric field (E$_{eff}$), higher electric polarizability and longer lifetime of the eEDM…

Atomic Physics · Physics 2019-03-13 Zhenghai Yang , Jing Li , Qinning Lin , Liang Xu , Hailing Wang , Tao Yang , Jianping Yin

As a new method to determine the resonance frequency, Rabi-oscillation spectroscopy has been developed. In contrast to the conventional spectroscopy which draws the resonance curve, Rabi-oscillation spectroscopy fits the time evolution of…

Electrical detection of spins is an essential tool in understanding the dynamics of spins in semiconductor devices, providing valuable insights for applications ranging from optoelectronics and spintronics to quantum information processing.…

Mesoscale and Nanoscale Physics · Physics 2015-06-23 C. C. Lo , M. Urdampilleta , P. Ross , M. F. Gonzalez-Zalba , J. Mansir , S. A. Lyon , M. L. W. Thewalt , J. J. L. Morton

The hyperfine structure of the ground state of erbium doped yttrium orthosilicate is analyzed with the use of electron paramagnetic resonance experiments in a tunable microwave resonator. This work was prompted by the disagreement between…

Precision spectroscopy of trapped HfF^+ will be used in a search for the permanent electric dipole moment of the electron (eEDM). While this dipole moment has yet to be observed, various extensions to the standard model of particle physics…

We report the development of an all-optical approach that excites the fundamental compression mode in a diamond Lamb wave resonator with an optical gradient force and detects the induced vibrations via strain coupling to a silicon vacancy…

Quantum Physics · Physics 2024-08-27 Xinzhu Li , Ignas Lekavicius , Jens Noeckel , Hailin Wang

In this paper, we describe the modification of Nanoscale Impedance Microscopy (NIM), namely, a combination of contact-mode atomic force microscopy with local impedance measurements. The postulated approach is based on the application of…

We report the generation of spin squeezing and entanglement in a magnetically-sensitive atomic ensemble, and entanglement-enhanced field measurements with this system. A maximal Raman coherence is prepared in an ensemble of 8.5x10^5…

Quantum Physics · Physics 2013-04-22 R. J. Sewell , M. Koschorreck , M. Napolitano , B. Dubost , N. Behbood , M. W. Mitchell

The experimental concept of a search for a long-range coupling between rubidium (Rb) nuclear spins and the mass of the Earth is described. The experiment is based on simultaneous measurement of the spin precession frequencies for…

A cryogenic neon solid doped with barium monofluoride (BaF) is created on a cryogenic substrate using a stream of Ne gas and a high-intensity beam of BaF molecules produced in a cryogenic helium-buffer-gas laser-ablation source. The…

Scanning precession electron diffraction (SPED) is a powerful technique for investigating strain. While extensive literature exists analysing strain under high convergence angle conditions there are few systematic studies describing work…

We develop a simple method for measuring the electron spin relaxation times $T_1$, $T_2$ and $T_2^*$ in semiconductors and demonstrate its exemplary application to $n$-type GaAs. Using an abrupt variation of the magnetic field acting on…

Mesoscale and Nanoscale Physics · Physics 2020-08-05 V. V. Belykh , D. R. Yakovlev , M. Bayer

Broadband FMR responses for metallic single-layer and bi-layer magnetic films with total thicknesses smaller than the microwave magnetic skin depth have been studied. Two different types of microwave transducers were used to excite and…

Materials Science · Physics 2015-05-14 K. J. Kennewell , M. Kostylev , R. Magaraggia , R. L. Stamps , M. Ali , A. A. Stashkevich , D. Greig , B. J. Hickey

An all-electrical spin resonance effect in a GaAs few-electron double quantum dot is investigated experimentally and theoretically. The magnetic field dependence and absence of associated Rabi oscillations are consistent with a novel…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 E. A. Laird , C. Barthel , E. I. Rashba , C. M. Marcus , M. P. Hanson , A. C. Gossard

Electronic spin precession and filtering are measured in the molecular field of magnetic thin films. The conducted lab-on-chip experiments allow injection of electrons with energies between 0.8 and 1.1 eV, an energy range never explored up…

Mesoscale and Nanoscale Physics · Physics 2021-02-24 Christopher Vautrin , Daniel Lacour , Coriolan Tiusan , Yuan Lu , François Montaigne , Mairbek Chshiev , Wolfgang Weber , Michel Hehn

Alkali-metal optically-pumped magnetometers are prone to inaccuracies arising from the overlap of the average F = I + 1/2 and F = I - 1/2 ground-state Zeeman resonances. We employ density-matrix simulations and experiments to investigate…

Atomic Physics · Physics 2025-03-17 D. P. Hewatt , M. Ellmeier , C. Kiehl , T. S. Menon , J. W. Pollock , C. A. Regal , S. Knappe

The negatively charged boron vacancy center in 2D hexagonal boron nitride has emerged as a promising quantum sensor. However, its sensitivity is constrained due to ubiquitous nuclear spins in the environment. The nuclear spins, hyperfine…

Quantum Physics · Physics 2025-12-23 Basanta Mistri , Saksham Mahajan , Felix Donaldson , Rama K. Kamineni , Siddharth Dhomkar

Present protocols for obtaining the ultimate magnetic sensitivity of optically pumped magnetometers (OPMs) utilizing alkali-metal ensembles rely on uncorrelated atoms in stretched states. A new approach for calculating the spin projection…

Quantum Physics · Physics 2024-02-23 K. Mouloudakis , V. Koutrouli , I. K. Kominis , M. W. Mitchell , G. Vasilakis