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Co-magnetometers have been validated as valuable components of the atomic physics toolbox in fundamental and applied physics. So far, the explorations have been focused on systems involving nuclear spins. Presented here is a demonstration…

原子物理 · 物理学 2020-09-09 Patrick Bevington , Rafal Gartman , Yevgeny V. Stadnik , Witold Chalupczak

We propose techniques for implementing two different rapid state purification schemes, within the constraints present in a superconducting charge qubit system. Both schemes use a continuous measurement of charge (z) measurements, and seek…

量子物理 · 物理学 2007-05-23 E. J. Griffith , C. D. Hill , J. F. Ralph , H. M. Wiseman , Kurt Jacobs

The impact of the optical field polarization on the spectrum of magnetically-induced transitions, a class of transitions forbidden at zero magnetic field, is studied with a weak-probe sub-Doppler technique. The high spectral resolution of…

原子物理 · 物理学 2025-02-19 A. Sargsyan , E. Klinger , A. Amiryan , D. Sarkisyan

This paper presents a compact low-temperature atomic vector magnetometer for weak field measurements, using an atomic cell containing two orthogonal multipass cavities. At the working temperature of 75 $^\circ$C, the magnetic field…

原子物理 · 物理学 2023-03-09 Siqi Liu , Qianqian Yu , Hao Zhou , Dong Sheng

Quantum sensors based on cold atoms are being developed which produce measurements of unprecedented accuracy. Due to shifts in atomic energy levels, quantum sensors often have stringent requirements on their internal magnetic field…

The magnetised solar wind modulates the Galactic cosmic ray flux in the heliosphere up to rigidities as high as 40 GeV. In this work, we present a new and straightforward extension of the popular, but limited force-field model, thus…

高能天体物理现象 · 物理学 2019-12-25 Marco Kuhlen , Philipp Mertsch

A magnetometric technique is demonstrated that may be suitable for precision measurements of fields ranging from the sub-microgauss level to above the Earth field. It is based on resonant nonlinear magneto-optical rotation caused by atoms…

原子物理 · 物理学 2009-11-07 D. Budker , D. F. Kimball , V. V. Yashchuk , M. Zolotorev

We present a new approach to the problem of Bloch electrons in magnetic field,\\ by making explicit a natural relation between magnetic translations and the\\quantum group $U_{q}(sl_2)$. The approach allows to express the spectrum and\\\…

凝聚态物理 · 物理学 2009-10-22 P. B Wiegmann , A. V. Zabrodin

Magnetization processes of the spin-1/2 antiferromagnetic $XXZ$ model in two and three spatial dimensions are studied using quantum Monte Carlo method based on stochastic series expansions. Recently developed operator-loop algorithm enables…

强关联电子 · 物理学 2009-11-07 Seiji Yunoki

We perform high-field magnetization measurements on the triangular lattice antiferromagnet Fe$_{1/3}$NbS$_2$. We observe a plateau in the magnetization centered at approximately half the saturation magnetization over a wide range of…

Antiferromagnets have attracted significant attention because of their considerable potential in engineering high-density and ultrafast memory devices, a crucial and increasingly demanded component of contemporary high-performance…

强关联电子 · 物理学 2026-05-11 Florian Johannesmann , Asliddin Khudoyberdiev , Götz S. Uhrig

We study the semi-classical dynamics of a scalar field in the background of a black hole in an asymptotically AdS (AAdS) spacetime, in the framework of the Hamiltonian formulation of General Relativity. The small diffeomorphism (gauge)…

高能物理 - 理论 · 物理学 2025-10-28 Anurag Kaushal , Naveen S. Prabhakar , Spenta R. Wadia

The wave functions for two dimensional Bloch electrons in a uniform magnetic field at the mid-band points are studied with the help of the algebraic structure of the quantum group $U_q(sl_2)$. A linear combination of its generators gives…

凝聚态物理 · 物理学 2009-10-28 Y. Hatsugai , M. Kohmoto , Y. -S. Wu

Measurements monitoring the inductive coupling between oscillating radio-frequency magnetic fields and objects of interest create versatile platforms for non-destructive testing. The benefits of ultra low frequency measurements, i.e., below…

应用物理 · 物理学 2024-10-17 L. M. Rushton , L. M. Ellis , J. D. Zipfel , P. Bevington , W. Chalupczak

The energy spectrum of the two-dimensional t-J model in a perpendicular magnetic field is investigated. The density of states at the Fermi level as a function of the inverse magnetic field $\frac{1}{B}$ reveals oscillations in the range of…

强关联电子 · 物理学 2019-05-21 A. Sherman , M. Schreiber

The design and performance of a wide bandwidth linear polarization modulator based on the Faraday effect is described. Faraday Rotation Modulators (FRMs) are solid-state polarization switches that are capable of modulation up to ~10 kHz.…

Mechanical resonators operating in the megahertz range have become a versatile platform for fundamental and applied quantum research. Their exceptional properties, such as low mass and high quality factor, make them also appealing for force…

介观与纳米尺度物理 · 物理学 2026-04-20 Diego A. Visani , Letizia Catalini , Christian L. Degen , Alexander Eichler , Javier del Pino

We theoretically investigate the phenomenon of modulation instability for systems obeying nonlinear Schr\"odinger equation, which are under the influence of an external homogeneous synthetic magnetic field. For an initial condition, the…

量子气体 · 物理学 2021-01-13 Karlo Lelas , Ozana Čelan , David Prelogović , Hrvoje Buljan , Dario Jukić

We exploit the impact of exact frequency modulation on transition time of steering nuclear spin states from theoretical point of view. 1-stage and 2-stage Frequency-Amplitude-Phase modulation (FAPM) algorithms are proposed in contrast with…

量子物理 · 物理学 2013-11-19 Boyang Liu , Ming Zhang , Hong-Yi Dai

A calibration procedure for calibrations of triaxial magnetometers is presented. The procedure uses a triaxial Helmholtz coil system and an Overhauser scalar magnetometer and is performed in the Earth's field range. The triaxial coils are…

仪器与探测器 · 物理学 2019-09-23 Ales Zikmund , Michal Janosek , Michal Ulvr , Jan Kupec