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We analyze the structure of the vacuum polarization tensor in the presence of a background electromagnetic field in a medium. We use various discrete symmetries and crossing symmetry to constrain the form factors obtained for the most…

高能物理 - 唯象学 · 物理学 2016-08-25 Avijit K. Ganguly , Sushan Konar , Palash B. Pal

We present a numerical approach to investigate the relationship between magnetic fields and Faraday rotation effects in clusters of galaxies. We can infer the structure and strength of intra-cluster magnetic fields by comparing our…

天体物理学 · 物理学 2009-11-10 M. Murgia , F. Govoni , L. Feretti , G. Giovannini , D. Dallacasa , R. Fanti , G. B. Taylor , K. Dolag

We report the first measurements of linear and nonlinear magneto-optical polarization rotation on an intercombination transition of Ba vapor (lambda= 791.1nm). We observe a maximum polarization rotation angle in Faraday configuration of…

原子物理 · 物理学 2009-09-29 Irina Novikova , Alexander Khanbekyan , David Sarkisyan , George R. Welch

The observed magnetic field of microgauss strength in clusters of galaxies should induce the Faraday rotation effect on the linearly polarized cosmic microwave background (CMB) radiation when the CMB radiation propagates through a cluster…

天体物理学 · 物理学 2007-05-23 Masahiro Takada , Hiroshi Ohno , Naoshi Sugiyama

The magnitude of the inverse Faraday effect (IFE), a static magnetization due to an ac electric field, can be strongly increased in a mesoscopic sample, sensitive to time-reversal symmetry (TRS) breaking. Random rectification of ac voltages…

介观与纳米尺度物理 · 物理学 2009-12-03 M. L. Polianski

We study propagation of ultrasonic waves through a ferromagnetic medium with special attention to the boundary conditions at the interface with an ultrasonic actuator. In analogy to charge and spin transport in conductors, we formulate the…

介观与纳米尺度物理 · 物理学 2013-11-04 Akashdeep Kamra , Gerrit E. W. Bauer

The resonant acousto-optic effect is studied both analytically and numerically in the terahertz range where the transverse-optical (TO) phonons play the role of a mediator which strongly couples the ultrasound and light fields. A…

其他凝聚态物理 · 物理学 2015-03-20 E. A. Muljarov , R. H. Poolman , A. L. Ivanov

A beam of linearly polarized light transmitted through magnetically biased graphene can have its axis of polarization rotated by several degrees after passing the graphene sheet. This large Faraday effect is due to the action of the…

材料科学 · 物理学 2016-07-06 Jürgen Schiefele , Luis Martin-Moreno , Francisco Guinea

We revisit the polarisation induced by Faraday rotation when Cosmic Microwave Background photons traverse magnetised plasma. We compute the secondary B-mode angular power spectrum from Faraday rotation due to magnetic fields in galaxies and…

天体物理学 · 物理学 2009-04-17 Hiroyuki Tashiro , Nabila Aghanim , Mathieu Langer

We have studied the acoustic Faraday effect in superfluid 3He up to significantly larger magnetic fields than in previous experiments achieving rotations of the polarization of transverse sound as large as 1710^{\circ}. We report nonlinear…

其他凝聚态物理 · 物理学 2014-01-23 C. A. Collett , J. Pollanen , J. I. A. Li , W. J. Gannon , W. P. Halperin

We study Faraday rotation in the quantum relativistic limit. Starting from the photon self-energy in the presence of a constant magnetic field the rotation of the polarization vector of a plane electromagnetic wave which travel along the…

高能物理 - 唯象学 · 物理学 2013-12-20 L. Cruz Rodriguez , A. Perez Martinez , H. Perez Rojas , E. Rodriguez Querts

We present a sequence of 12 monthly polarimetric 15, 22, and 43 GHz VLBA observations of the radio galaxy 3C 120 revealing a systematic presence of gradients in Faraday rotation and degree of polarization across and along the jet. The…

天体物理学 · 物理学 2009-11-13 J. -L. Gomez , A. P. Marscher , S. G. Jorstad , I. Agudo , M. Roca-Sogorb

This paper investigates the Faraday effect as a different source of B mode polarization. The E mode polarization is Faraday rotated provided a stochastic large-scale magnetic field is present prior to photon decoupling. In the first part of…

宇宙学与河外天体物理 · 物理学 2015-06-19 Massimo Giovannini

We present the first measurements of the attenuation of transverse sound in superfluid 3He-B. We use fixed path length interferometry combined with the magneto-acoustic Faraday effect to vary the effective path length by a factor of two,…

超导电性 · 物理学 2009-02-07 J. P. Davis , J. Pollanen , H. Choi , J. A. Sauls , W. P. Halperin , A. B. Vorontsov

The thermal Hall effect has been observed in a wide variety of magnetic insulators, yet its origins remains controversial. While some studies attribute the effect to intrinsic mechanism, such as heat carriers with Berry curvature, others…

强关联电子 · 物理学 2026-05-12 Avi Shragai , Ezekiel Horsley , Subin Kim , Young-June Kim , B. J. Ramshaw

One of the most fundamental forms of magnon-phonon interaction is an intrinsic property of magnetic materials, the "magnetoelastic coupling". This particular form of interaction has been the basis for describing magnetic materials and their…

Using high frequency (12-22 GHz) VLBA observations we confirm the existence of a Faraday rotation measure gradient of ~ 500 rad/m^2/mas transverse to the jet axis in the quasar 3C 273. The gradient is seen in two epochs spaced roughly six…

天体物理学 · 物理学 2009-11-11 R. T. Zavala , G. B. Taylor

Studying the interaction between AGN jets and lobes and their surrounding environment is important in order to understand how they transfer energy to their environment as well as determining the intrinsic physical properties of the sources…

星系天体物理 · 物理学 2018-11-08 S. Knuettel , S. P. O'Sullivan , S. Curiel , B. H. C. Emonts

We describe singularities in the distribution of polarized intensity as a function of Faraday depth (i.e. the Faraday spectrum) caused by line-of-sight (LOS) magnetic field reversals. We call these features Faraday caustics because of their…

星系天体物理 · 物理学 2015-05-28 M. R. Bell , H. Junklewitz , T. A. Enßlin

The magneto-optical Faraday effect in the magnetoplasmonic nanostructures with nonuniform, periodically modulated spatial distribution of the magnetization is considered. It is shown that in such nanostructures the Faraday effect can…