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We introduce a lattice model for a classical doped two dimensional antiferromagnet which has no quenched disorder, yet displays slow dynamics similar to those observed in supercooled liquids. We calculate two-time spatial and spin…

Disordered Systems and Neural Networks · Physics 2009-11-10 Malcolm P. Kennett , Claudio Chamon , Leticia F. Cugliandolo

The Nitrogen-Vacancy (NV) defect in diamond is a unique quantum system that offers precision sensing of nanoscale physical quantities beyond the current state-of-the-art. Here we present a method to controllably encode the interactions in…

Novel magnetic structures with precisely controlled dimensions and shapes at the nanoscale have potential applications in spin logic, spintronics and other spin-based communication devices. We report the fabrication of two-dimensional…

Mesoscale and Nanoscale Physics · Physics 2019-01-29 Nikita Porwal , Sucheta Mondal , Samiran Choudhury , Anulekha De , Jaivardhan Sinha , Anjan Barman , Prasanta Kumar Datta

We develop a fully relativistic framework to study the rotational response of gravitationally coupled two-fluid neutron stars within the slow-rotation approximation. Treating the two components as independently conserved perfect fluids…

High Energy Astrophysical Phenomena · Physics 2026-03-16 Ankit Kumar , Hajime Sotani

Recently, it has been proposed a new method [arXiv:2405.21029] to detect quantum gravity effects, based on generating gravitational entanglement between two nano-diamonds with Nitrogen-Vacancy defects, in a magnetically trapped…

The stable vortex state that occurs in micron-scale magnetic disks is one of the most interesting and potentially useful phenomenon in nanomagnetism. A variety of tools have been applied to study the vortex state, and collective spin…

Mesoscale and Nanoscale Physics · Physics 2020-07-07 P. H. Kim , F. Fani Sani , M. R. Freeman , J. P. Davis

We theoretically propose a method to realize optical nonreciprocity in rotating nano-diamond with a nitrogen-vacancy (NV) center. Because of the relative motion of the NV center with respect to the propagating fields, the frequencies of the…

Quantum Physics · Physics 2022-08-12 Hong-Bo Huang , Jun-Jie Lin , Yi-Xuan Yao , Ke-Yu Xia , Zhang-Qi Yin , Qing Ai

The scheme recently proposed in [M. Scala et al., Phys Rev Lett 111, 180403 (2013)], where a gravity-dependent phase shift is induced on the spin of a nitrogen-vacancy (NV) center in a trapped nanodiamond by the interaction between its…

Quantum Physics · Physics 2016-05-04 C. Wan , M. Scala , S. Bose , A. C. Frangeskou , ATM A. Rahman , G. W. Morley , P. F. Barker , M. S. Kim

We present a systematic stability analysis for the two-dimensional Hubbard model, which is based on a new renormalization group method for interacting Fermi systems. The flow of effective interactions and susceptibilities confirms the…

Strongly Correlated Electrons · Physics 2009-10-31 Christoph J. Halboth , Walter Metzner

We have performed $^{75}$As and $^{23}$Na nuclear magnetic resonance (NMR) measurements on a single crystal of NaFe$_{0.9835}$Co$_{0.0165}$As and found microscopic coexistence of superconductivity with a two-component spin density wave…

We study spin and charge dynamics of stripes in doped Mott insulators by considering a two-dimensional Hubbard model with N fermion flavors. For N =2 we recover the normal one-band model while for N -> infty a spin density wave mean-field…

Strongly Correlated Electrons · Physics 2009-11-07 F. F. Assaad , V. Rousseau , F. Hebert , M. Feldbacher , G. G. Batrouni

The detection of gravitational waves from merging binaries has ushered in the era of gravitational wave interferometer astronomy. Besides these strong, transient, calamitous events, much weaker signals can be detected if the oscillations…

Cosmology and Nongalactic Astrophysics · Physics 2021-04-26 Juan Manuel Armaleo , Diana López Nacir , Federico R. Urban

We investigated the role that the electron-electron interaction plays on the propagating properties of wave packets in a one-dimensional crystal with impurities. We considered two interacting particles with opposite spins in a band, where…

Disordered Systems and Neural Networks · Physics 2007-05-23 P. E. de Brito , E. S. Rodrigues , H. N. Nazareno

Rotations play a detrimental role in achieving ultra-high-performance inertial measurements with an atom interferometer, leading potentially to a total loss of interference contrast and the emergence of dominant phase shift biases. This…

Over the last decade, frequency-domain in-situ high-pressure nuclear magnetic resonance (NMR) spectroscopy in diamond anvil cells (DACs) has been employed as a structural and electronic probe of condensed matter systems at pressures well…

Instrumentation and Detectors · Physics 2026-01-08 Thomas Meier , Meng Yang , Yishan Zhou , Yunhua Fu , Rui Zhang , Ziliang Wang , Tianyao Zheng , Rajesh Jana , Takeshi Nakagawa

Dark matter or modifications of the Newtonian inverse-square law in the solar-system are studied with accurate planetary astrometric data. From extra-perihelion precession and possible changes in the third Kepler's law, we get an upper…

Astrophysics · Physics 2009-11-11 M. Sereno , Ph. Jetzer

We present experimental, numerical, and theoretical evidence for a new mode of antiferromagnetic dynamics in nanoparticles. Elastic neutron scattering experiments on 8 nm particles of hematite display a loss of diffraction intensity with…

Strongly Correlated Electrons · Physics 2015-06-23 K. Lefmann , H. Jacobsen , J. Garde , P. Hedegard , A. Wischnewski , S. N. Ancona , H. S. Jacobsen , C. R. H. Bahl , L. Theil Kuhn

We investigate the structural, dynamical, and oscillatory properties of neutron stars admixed with dark matter, modeled via a single-fluid formalism where dark matter interacts with nuclear matter through an effective Higgs-portal coupling.…

High Energy Astrophysical Phenomena · Physics 2025-06-03 Ankit Kumar , Hajime Sotani

We study experimentally and theoretically a dense ensemble of negatively charged nitrogen-vacancy centers in diamond coupled to a high $Q$ superconducting coplanar waveguide cavity mode at low temperature. The nitrogen-vacancy centers are…

Quantum Physics · Physics 2013-05-30 K. Sandner , H. Ritsch , R. Amsüss , Ch. Koller , T. Nöbauer , S. Putz , J. Schmiedmayer , J. Majer

We demonstrate quantum coherent control of a single electron spin in a NV center in diamond using the Landau-Zener-Stuckelberg interferometry at room temperature. Interference pattern is observed oscillating as a function of microwave…

Quantum Physics · Physics 2012-03-08 Pu Huang , Jingwei Zhou , Fang Fang , Xi Kong , Xiangkun Xu , Chenyong Ju , Jiangfeng Du
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