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The polarization of conduction electron spins due to an electrical current is observed in strained nonmagnetic semiconductors using static and time-resolved Faraday rotation. The density, lifetime, and orientation rate of the…

介观与纳米尺度物理 · 物理学 2007-05-23 Y. Kato , R. C. Myers , A. C. Gossard , D. D. Awschalom

We have detected significant Rotation Measure variations for 9 bright pulsars, as a function of pulse longitude. An additional sample of 10 pulsars showed a rather constant RM with phase, yet a small degree of RM fluctuation is visible in…

星系天体物理 · 物理学 2015-05-13 A. Noutsos , A. Karastergiou , M. Kramer , S. Johnston , B. W. Stappers

We study the transport of spin polarized electrons in n-GaAs using spatially resolved continuous wave Faraday rotation. From the measured steady state distribution, we determine spin relaxation times under drift conditions and, in the…

材料科学 · 物理学 2007-05-23 M. Beck , C. Metzner , S. Malzer , G. H. Döhler

For rotation powered pulsars, the rate of change of the spin period is expected to be positive. On the other hand, for a clean binary system (where gravity is the only force acting on the pulsar) the rate of change of the orbital period is…

高能天体物理现象 · 物理学 2019-05-06 Dhruv Pathak , Manjari Bagchi

By Faraday-rotation fluctuation spectroscopy one measures the spin noise via Faraday-induced fluctuations of the polarization plane of a laser transmitting the sample. In the fist part of this paper, we present a theoretical model of recent…

介观与纳米尺度物理 · 物理学 2009-11-11 Matthias Braun , Jürgen König

Faraday Rotation-Conversion is the simultaneous rotation of all three Stokes polarization parameters $Q$, $U$, $V$ as an electromagnetic wave propagates through a magnetized plasma. In this regime the Faraday plasma screen is characterized…

高能天体物理现象 · 物理学 2019-05-15 Andrei Gruzinov , Yuri Levin

Ability to read-out the state of a single confined spin lies at the heart of solid-state quantum information processing. While all-optical spin measurements using Faraday rotation has been successfully implemented in ensembles of…

量子物理 · 物理学 2015-06-26 Mete Atature , Jan Dreiser , Antonio Badolato , Atac Imamoglu

Faraday rotation of a laser field induced by a single atom is demonstrated by tightly focussing a linearly polarized laser beam onto a laser-cooled ion held in a harmonic Paul trap. The polarization rotation signal is further used to…

原子物理 · 物理学 2012-12-20 G. Hétet , L. Slodička , N. Röck , R. Blatt

We report on a giant Faraday effect in an electron plasma in n-InSb probed via polarization-resolved terahertz (THz) time-domain spectroscopy. Polarization rotation angles and ellipticities reach as large as {\pi}/2 and 1, respectively,…

光学 · 物理学 2012-08-24 T. Arikawa , X. Wang , A. A. Belyanin , J. Kono

Different ray paths through a turbulent plasma can produce stochastic Faraday rotation leading to depolarization of any linearly polarized component. Simple theory predicts that the average values of the Stokes parameters decay according to…

天体物理学 · 物理学 2009-10-30 D. B. Melrose , J. -P. Macquart

We derive an expression for the phase shift of an atom interferometer in a gravitational field taking into account both the finite duration of the light pulses and the effect of a small perturbing potential added to a stronger uniform…

量子物理 · 物理学 2019-04-02 A. Bertoldi , F. Minardi , M. Prevedelli

A Ramsey interrogation scheme was used to measure the phase shift of laser-cooled $^{87}$Rb clock-transition pseudospins arising as a result of a reversal of a bias magnetic field, i.e., $\textbf{B} \to -\textbf{B}$, during the…

量子物理 · 物理学 2009-11-13 Koji Usami , Mikio Kozuma

The Faraday effect, caused by a magnetic-field-induced change in the optical properties, takes place in a vast variety of systems from a single atomic layer of graphenes to huge galaxies. Currently, it plays a pivot role in many…

等离子体物理 · 物理学 2017-10-10 Suming Weng , Qian Zhao , Zhengming Sheng , Wei Yu , Shixia Luan , Min Chen , Lule Yu , Masakatsu Murakami , Warren B. Mori , Jie Zhang

The standard formula for the rotation measure, RM, which determines the position angle, $\psi={\rm RM}\lambda^2$, due to Faraday rotation, includes contributions only from the portions of the ray path where the natural modes of the plasma…

太阳与恒星天体物理 · 物理学 2015-05-20 D. B. Melrose

The influence od space-time curvature on quantum matter which can be theoretically described by covariant wave equations has not been experimentally established yet. In this paper we analyse in detail the suitability of the Ramsey atom beam…

广义相对论与量子宇宙学 · 物理学 2009-10-22 Jürgen Audretsch , Karl-Peter Marzlin

Time-resolved Faraday rotation spectroscopy is currently exploited as a powerful technique to probe spin dynamics in semiconductors. We propose here an all-optical approach to geometrically manipulate electron spin and to detect the…

量子物理 · 物理学 2009-11-07 Xin-Qi Li , Cheng-Yong Hu , Li-Xiang Cen , Hou-Zhi Zheng , YiJing Yan

We consider propagation of polarization in the inner parts of pair-symmetric magnetar winds, close to the light cylinder. Pair plasmas in magnetic field is birefringent, a $\propto B^2$ effect. As a result, such plasmas work as phase…

高能天体物理现象 · 物理学 2022-07-06 Maxim Lyutikov

Large-scale simulations of the spin dynamics in quantum dots subjected to trains of periodic laser pulses enable us to describe and understand related experiments. By comparing the data for different models to experimental results, we gain…

介观与纳米尺度物理 · 物理学 2022-01-10 Philipp Schering , Philipp W. Scherer , Götz S. Uhrig

Measurements of average pulse profiles made with a single linear polarization over the range 41-112 MHz are presented for PSR B0950+08. We show that the observed variable structure of the pulse profiles is a result of Faraday sinusoidal…

天体物理学 · 物理学 2009-11-10 T. V. Shabanova , Yu. P. Shitov

Full electric-field control of spin orientations is one of the key tasks in semiconductor spintronics. We demonstrate that electric field pulses can be utilized for phase-coherent +/- pi spin rotation of optically generated electron spin…

材料科学 · 物理学 2012-10-05 S. Kuhlen , K. Schmalbuch , M. Hagedorn , P. Schlammes , M. Patt , M. Lepsa , G. Güntherodt , B. Beschoten
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