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We study the classical antiferromagnetic Heisenberg model on the triangular lattice with Dzyaloshinskii-Moriya interactions in a magnetic field. We focus in particular in the emergence of a composite spin crystal phase, dubbed…

Strongly Correlated Electrons · Physics 2017-07-12 S. A. Osorio , H. D. Rosales , M. B. Sturla , D. C. Cabra

We experimentally demonstrate that spin dynamics and the phase diagram of spinor condensates can be conveniently tuned by a two-dimensional optical lattice. Spin population oscillations and a lattice-tuned separatrix in phase space are…

Quantum Gases · Physics 2015-06-08 L. Zhao , J. Jiang , T. Tang , M. Webb , Y. Liu

Fermionic 87Sr has a nuclear spin of I=9/2, higher than any other element with similar electronic structure. This large nuclear spin has many applications in quantum simulation and computation, for which preparation and detection of the…

Quantum Gases · Physics 2011-10-11 Simon Stellmer , Rudolf Grimm , Florian Schreck

One of the challenging goals in the studies of many-body physics with ultracold atoms is the creation of a topological $p_{x} + ip_{y}$ superfluid for identical fermions in two dimensions (2D). The expectations of reaching the critical…

Quantum Gases · Physics 2017-12-05 M. A. Caracanhas , F. Schreck , C. Morais Smith

Antiferromagnetic magnonics has become the focus of intense scientific research because of the advantages of these materials compared to ferromagnets. However, ferrimagnetic materials have received much less attention despite exhibiting…

We bridge an essential knowledge gap on the understanding of all-optical ultrafast switching in ferrimagnets; namely, the connection between atomistic spin dynamics methods and macroscopic phenomenological models. All-optical switching of…

Materials Science · Physics 2022-06-29 Florian Jakobs , Unai Atxitia

Miniaturization is an essential element in the development of information processing technologies and is also one of the main determinants of the usability of the tested artificial neural networks. It is also a key element and one of the…

Mesoscale and Nanoscale Physics · Physics 2025-12-01 Oleksandr Pastukh , Piotr Graczyk , Mateusz Zelent , Lukasz Laskowski , Maciej Krawczyk

We present a platform for the simulation of quantum magnetism with full control of interactions between pairs of spins at arbitrary distances in one- and two-dimensional lattices. In our scheme, two internal atomic states represent a…

Quantum Physics · Physics 2016-09-02 C. -L. Hung , A. González-Tudela , J. I. Cirac , H. J. Kimble

We explore experimentally quantum non-demolition (QND) measurements of atomic spin in a hot potassium vapor in the presence of spin-exchange relaxation. We demonstrate a new technique for back-action evasion by stroboscopic modulation of…

Quantum Physics · Physics 2015-05-20 G. Vasilakis , V. Shah , M. V. Romalis

We study a mixture of ultracold spin-half fermionic and spin-one bosonic atoms in a shallow optical lattice where the bosons are coupled to the fermions via both density-density and spin-spin interactions. We consider the parameter regime…

Strongly Correlated Electrons · Physics 2013-10-29 S. Modak , S. -W. Tsai , K. Sengupta

These lecture notes contain an introduction to the physics of quantum mixtures of ultracold atoms trapped in multiple internal states. I will discuss the case of fermionic isotopes of alkaline-earth atoms, which feature an intrinsic SU($N$)…

Quantum Gases · Physics 2023-08-15 Leonardo Fallani

Ag2MnO2 is studied as a possible candidate compound for an antiferromagnetic XY spin model on a triangular lattice. In spite of the large Curie-Weiss temperature of -430 K found in magnetic susceptibi-lity, Mn3+ spins with S = 2 do not…

Strongly Correlated Electrons · Physics 2009-11-13 Hiroyuki Yoshida , Sascha Ahlert , Martin Jansen , Yoshihiko Okamoto , Jun-Ichi Yamaura , Zenji Hiroi

We report a technique that uses clouds of ultracold atoms as sensitive, tunable, and non-invasive probes for microwave field imaging with micrometer spatial resolution. The microwave magnetic field components drive Rabi oscillations on…

Atomic Physics · Physics 2010-12-03 Pascal Boehi , Max F. Riedel , Theodor W. Haensch , Philipp Treutlein

We report a method for nanometer-scale pulsed nuclear magnetic resonance imaging and spectroscopy. Periodic radiofrequency pulses are used to create temporal correlations in the statistical polarization of a solid organic sample. The spin…

Mesoscale and Nanoscale Physics · Physics 2013-10-01 John M. Nichol , Tyler R. Naibert , Eric R. Hemesath , Lincoln J. Lauhon , Raffi Budakian

Electron Cyclotron Resonance Ion Sources are currently the most efficient ion sources among those used in facilities dedicated to nuclear physics. The need for a more flexible magnetic field and RF injection system suggested to design and…

Temperature and field dependences of the frequencies of uniform modes of the skyrmion lattice in a 2D ferromagnetic film with Dzyaloshinskii-Moriya interaction, as well as their damping, are computed within the model of classical spins. We…

Materials Science · Physics 2025-10-17 D. A. Garanin , E. M. Chudnovsky

Quantum adiabatic passages can be greatly accelerated by a suitable control field, called a counter-diabatic field, which varies during the scan through resonance. Here, we implement this technique on the electron spin of a single…

We study a two-dimensional Fermi gas with an attractive interaction subjected to synthetic magnetic fields assumed to be mutually antiparallel for two different spin components. By employing the mean-field approximation, we find that its…

Quantum Gases · Physics 2017-05-31 Takaaki Anzai , Yusuke Nishida

We demonstrate the control of the alpha-proton nuclear spin, I=1/2, coupled to the stable radical CH(COOH)2, S=1/2, in a gamma-irradiated malonic acid single crystal using only microwave pulses. We show that, depending on the state of the…

Quantum Physics · Physics 2015-05-14 George Mitrikas , Yiannis Sanakis , Georgios Papavassiliou

Controlling the directionality of spin waves is a key ingredient in wave-based computing methods such as magnonics. In this paper, we demonstrate this particular aspect by using an all-optical point-like source of continuous spin waves…

Mesoscale and Nanoscale Physics · Physics 2021-01-27 S. Muralidhar , R. Khymyn , A. A. Awad , A. Alemán , D. Hanstorp , J. Åkerman , .
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