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Understanding the sources of losses and chemical reactions of ultracold alkali-metal molecules is among the critical elements needed for their application in precision measurements and quantum technologies. Recent experiments with…

Quantum Gases · Physics 2022-11-11 Krzysztof Jachymski , Marcin Gronowski , Michał Tomza

Compared to electrons, holes in InAs quantum dots have a significantly weaker hyperfine interaction that leads to less dephasing from nuclear spins. Thus many recent studies have suggested that nuclear spins are unimportant for hole spin…

Mesoscale and Nanoscale Physics · Physics 2014-03-03 Samuel G. Carter , Sophia E. Economou , Alex Greilich , Edwin Barnes , Timothy M. Sweeney , Allan S. Bracker , Daniel Gammon

Both magnetism and spin-orbit coupling in systems with broken inversion symmetry lift the spin degeneracy of electronic bands, but the consequences of interplay between these mechanisms remain poorly understood. Here, we show that ultrathin…

Van der Waals (vdW) antiferromagnets are exceptional platforms for exploring the spin dynamics of antiferromagnetic materials owing to their weak interlayer exchange coupling. In this study, we examined the antiferromagnetic resonance…

We measure the electron spin resonance spectrum of the endohedral fullerene molecule $^{15}\mathrm{N@C}_{60}$ at pressures ranging from atmospheric pressure to 0.25 GPa, and find that the hyperfine coupling increases linearly with pressure.…

Chemical Physics · Physics 2017-12-19 R. T. Harding , A. Folli , J. Zhou , G. A. D. Briggs , K. Porfyrakis , E. A. Laird

This work presents a comprehensive theoretical investigation of magnon-phonon-photon interactions in cubic ferromagnets near orientational phase transitions (OPT). The study focuses on the interplay of magnetoelastic (ME),…

Materials Science · Physics 2025-01-13 I. V. Bychkov , D. A. Kuzmin , V. A. Tolkachev , V. D. Buchelnikov , V. G. Shavrov

We present calculations of spin-relaxation rates of alkali-metal atoms due to the spin-axis interaction acting in binary collisions between the atoms. We show that for the high-temperature conditions of interest here, the spin relaxation…

Atomic Physics · Physics 2009-11-06 S. Kadlecek , T. Walker , D. K. Walter , C. Erickson , W. Happer

This chapter deals with atom-wall interaction occurring in the "long-range" regime (typical distances: 1-1000 nm), when the electromagnetic fluctuations of an isolated atom are modified by the vicinity with a surface. Various regimes of…

Atomic Physics · Physics 2007-05-23 Daniel Bloch , Martial Ducloy

We investigated the nonreciprocal spin-wave properties, including the frequency shift, of a helical equilibrium state in a versatile CoFeB/NiFe bilayer. Through an extension of the dynamic matrix formalism (developed in this work) to an…

Mesoscale and Nanoscale Physics · Physics 2026-04-02 Claudia Negrete , Omar J. Suarez , Attila Kákay , Jorge A. Otálora

Coherence of spins of electrons confined in III-V quantum dots is strongly affected by their hyperfine interaction with the nuclei. In this paper an introduction to this subject will be given. Some theoretical approaches to the problem will…

Mesoscale and Nanoscale Physics · Physics 2016-04-18 Łukasz Cywiński

We measured transitions between the hyperfine levels of the electronic ground state of potassium-39 atoms (transition frequency: 460 MHz) as the atoms moved through a periodic magneto-static field produced above the magnetic-stripe domains…

Atomic Physics · Physics 2023-10-18 Naota Sekiguchi , Hiroaki Usui , Atsushi Hatakeyama

Hyperfine-induced electric dipole contributions may significantly increase probabilities of otherwise very weak electric octupole and magnetic quadrupole atomic clock transitions (e.g. transitions between $s$ and $f$ electron orbitals).…

Atomic Physics · Physics 2016-06-01 V. A. Dzuba , V. V. Flambaum

We demonstrate modulation of the effective interaction between the magnetic sublevels of the hyperfine spin $F=1$ in a $^{87}$Rb Bose-Einstein condensate by Rabi coupling with radio-frequency (rf) field. The use of the $F=1$ manifold…

Atomic Physics · Physics 2019-01-30 Kosuke Shibata , Aki Torii , Hitoshi Shibayama , Yujiro Eto , Hiroki Saito , Takuya Hirano

We show that weakly bound He-containing van der Waals molecules can be produced and magnetically trapped in buffer-gas cooling experiments, and provide a general model for the formation and dynamics of these molecules. Our analysis shows…

Controlling interactions between cold molecules using external fields can elucidate the role of quantum mechanics in molecular collisions. We create a new experimental platform in which ultracold rubidium atoms and cold ammonia molecules…

Atomic Physics · Physics 2011-05-24 L. P. Parazzoli , N. J. Fitch , P. S. Zuchowski , J. M. Hutson , H. J. Lewandowski

We demonstrate bias control of the hyperfine coupling between a single electron in an InAs quantum dot and the surrounding nuclear spins monitored through the positively charged exciton X+ emission. In applied longitudinal magnetic fields…

Mesoscale and Nanoscale Physics · Physics 2013-08-19 J. Nilsson , L. Bouet , A. J. Bennett , T. Amand , R. M. Stevenson , I. Farrer , D. A. Ritchie , S. Kunz , X. Marie , A. J. Shields , B. Urbaszek

Coherent peripheral collisions of atomic nuclei involve electromagnetic or long range hadronic interactions at impact parameters, where both nuclei survive intact. Recently such ultra-peripheral collisions were observed at RHIC. The effect…

Nuclear Experiment · Physics 2019-08-14 Pablo Yepes

Studying the thermodynamics of the systems produced in ultra-relativistic heavy-ion collisions is crucial in understanding the QCD phase diagram. Recently, a new avenue has opened regarding the implications of large initial angular momentum…

High Energy Physics - Phenomenology · Physics 2024-09-18 Kshitish Kumar Pradhan , Bhagyarathi Sahoo , Dushmanta Sahu , Raghunath Sahoo

Over the past decade, ultrafast electron dynamics in the solid state have been extensively studied using various strong light-matter interaction techniques, such as high-harmonic generation. These studies lead to multiple interpretations of…

Magnetically tunable Feshbach resonances exist in ultracold collisions between atoms in $^2$S and $^3$P$_0$ states, such as an alkali-metal atom colliding with Yb or Sr in a clock state. We investigate the mechanisms of these resonances and…

Atomic Physics · Physics 2023-02-15 Bijit Mukherjee , Matthew D. Frye , Jeremy M. Hutson