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The special role played by singly polarized high-energy hadron-hadron collisions in Spin Physics is discussed: In such processes, the measured and the calculated quantities can be and have been directly compared with each other --- without…

高能物理 - 唯象学 · 物理学 2007-05-23 Meng Ta-chung

Rabi nutations of a single electron spin in a single defect center have been detected. The coherent evolution of the spin quantum state is followed via optical detection of the spin state. Coherence times up to several microseconds at room…

量子物理 · 物理学 2007-05-23 F. Jelezko , T. Gaebel , I. Popa , A. Gruber , J. Wrachtrup

The silicon vacancy in silicon carbide is a strong emergent candidate for applications in quantum information processing and sensing. We perform room temperature optically-detected magnetic resonance and spin echo measurements on an…

介观与纳米尺度物理 · 物理学 2015-10-19 S. G. Carter , Ö. O. Soykal , Pratibha Dev , Sophia E. Economou , E. R. Glaser

We report that spin polarization occurs over millimeters in polycrystalline bulk samples of chiral disilicide NbSi$_2$ and TaSi$_2$. As previously demonstrated in the experiments using single crystals of NbSi$_2$ and TaSi$_2$, electrical…

材料科学 · 物理学 2021-11-08 Hiroaki Shishido , Rei Sakai , Yuta Hosaka , Yoshihiko Togawa

The spin-split Fermi level crossings of the conduction band in Ni are mapped out by high-resolution photoemission and compared to the equivalent crossing in Cu. The area of the quasiparticle peak decreases rapidly below Ef in Ni, but not in…

Theoretical study is performed of a single-mode polariton system with linear coupling of spin components. When combined with an ordinary two-particle interaction, the spin coupling involves a spontaneous symmetry breaking accompanied by a…

介观与纳米尺度物理 · 物理学 2022-08-31 S. S. Gavrilov

Spin polarization effects in nonmagnetic materials are generally believed as an outcome of spin-orbit coupling provided that the global inversion symmetry is lacking, also known as 'spin-momentum locking'. The recently discovered hidden…

In a closed quantum system of N coupled spins with magnetic quantum number I, there are about (2I + 1)^N constants of motion. However, the possibility of observing such quasi-invariant (QI) states in solid-like spin systems in Nuclear…

原子与分子团簇 · 物理学 2015-06-15 C. J. Bonin , C. E. González , H. H. Segnorile , R. C. Zamar

Polarization and spin effects are useful for probing the Standard Model, in both the electroweak sector and the strong sector, where the spin decomposition of the nucleon is still a hot topic, with important new data on the net…

高能物理 - 唯象学 · 物理学 2009-09-11 John Ellis

This chapter describes the relationship between low frequency noise and coherence decay of localized spins in semiconductors. Section 2 establishes a direct relationship between an arbitrary noise spectral function and spin coherence as…

介观与纳米尺度物理 · 物理学 2009-09-05 Rogerio de Sousa

A recent theory of the resonant neutron scattering peaks in YBCO superconductors predicts the existence of a sharp spin triplet two particle collective mode (the ``\pi resonance") in the normal state. In this paper, we propose an experiment…

超导电性 · 物理学 2016-08-31 Y. Bazaliy , E. Demler , S. C. Zhang

Current-induced magnetic excitations in Co/Cu/Co bilayer nanopillars ($\sim$50 nm in diameter) have been studied experimentally at low temperatures for large applied fields perpendicular to the layers. At sufficiently high current densities…

介观与纳米尺度物理 · 物理学 2016-08-16 B. Özyilmaz , A. D. Kent , M. J. Rooks , J. Z. Sun

Dipolar spin ensembles with random spin positions attract much attention currently because they help to understand decoherence as it occurs in solid state quantum bits in contact with spin baths. Also, these ensembles are systems which may…

无序系统与神经网络 · 物理学 2023-12-08 Timo Gräßer , Kristine Rezai , Alexander O. Sushkov , Götz S. Uhrig

The COMPASS experiment at CERN SPS features charged particle tracking as well as good coverage by electromagnetic calorimetry, and our data provide an excellent opportunity for simultaneous observation of new states in different decay modes…

高能物理 - 实验 · 物理学 2019-08-13 Frank Nerling

A pinch point singularity in the structure factor characterizes an important class of condensed matter that is a counterpoint to the paradigm of broken symmetry. This class includes water ice, charge ice and spin ice. Of these, dipolar spin…

强关联电子 · 物理学 2020-03-16 Mikael Twengström , Patrik Henelius , Steven T. Bramwell

For many years it has been considered puzzling how pulsar radio emission, supposedly created by a circulating carousel of sub-beams, can produce the driftbands demonstrated by PSR J0815+09, and more recently PSR B1839-04, which…

高能天体物理现象 · 物理学 2016-11-23 Geoff Wright , Patrick Weltevrede

The measurement of the spin frequency in accreting millisecond X-ray pulsars (AMXPs) is strongly affected by the presence of an unmodeled component in the pulse arrival times called 'timing noise'. We show that it is possible to attribute…

高能天体物理现象 · 物理学 2011-02-11 Alessandro Patruno , Rudy Wijnands , Michiel van der Klis

A flop of electric polarization from $P$$\parallel$$c$ ($P_c$) to $P$$\parallel$$a$ ($P_a$) is observed in MnTiO$_3$ as a spin flop transition is triggered by a $c$-axis magnetic field, $H_{\|c}$=7 T. The critical magnetic field $H_{\|c}$…

强关联电子 · 物理学 2014-10-29 Songxue Chi , Feng Ye , H. D. Zhou , E. S. Choi , J. Hwang , Huibo Cao , Jaime A. Fernandez-Baca

Erbium implanted silicon as a quantum technology platform has both telecommunications and integrated circuit processing compatibility. In Si implanted with Er to a concentration of 3x10^17 cm^3 and O to a concentration of 10^20 cm^3, the…

Per the fluctuation-dissipation theorem, the information obtained from spin fluctuation studies in thermal equilibrium is necessarily constrained by the system's linear response functions. However, by including weak radiofrequency magnetic…

原子物理 · 物理学 2015-06-22 P. Glasenapp , Luyi Yang , D. Roy , D. G. Rickel , A. Greilich , M. Bayer , N. A. Sinitsyn , S. A. Crooker