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By using holographic methods, the radii of convergence of the hydrodynamic shear and sound dispersion relations were previously computed in the ${\cal N} = 4$ supersymmetric Yang-Mills theory at infinite 't Hooft coupling and infinite…

高能物理 - 理论 · 物理学 2023-08-10 Sašo Grozdanov , Andrei O. Starinets , Petar Tadić

We present theoretical model for the proximity effect in F-SFF-F structures (F is ferromagnet, S is superconductor) with non-collinear magnetizations vectors in the F-layers and with arbitrary magnitudes of exchange fields. Electrical…

超导电性 · 物理学 2014-01-16 T. Yu. Karminskaya , M. Yu. Kupriyanov , S. L. Prischepa , A. A. Golubov

We report on the first observation of nonlinear Faraday rotation with cold atoms at a temperature of ~100 uK. The observed nonlinear rotation of the light polarization plane is up to 0.1 rad over the 1 mm size atomic cloud in approximately…

原子物理 · 物理学 2015-05-14 Adam Wojciechowski , Eric Corsini , Jerzy Zachorowski , Wojciech Gawlik

Metamaterials can exhibit exotic nonreciprocal properties, yet corresponding fundamental limits and design blueprints achieving them are largely unexplored. Here, we derive comprehensive bounds on the effective nonreciprocal properties of…

应用物理 · 物理学 2025-09-03 Christian Kern , Graeme W. Milton

We study the pairing of Fermi gases near the scattering resonance of the $\ell\neq 0$ partial wave. Using a model potential which reproduces the actual two-body low energy scattering amplitude, we have obtained an analytic solution of the…

其他凝聚态物理 · 物理学 2007-05-23 Tin-Lun Ho , Roberto B. Diener

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

We study attractively interacting fermions on a square lattice with dispersion relations exhibiting strong spin-dependent anisotropy. The resulting Fermi surface mismatch suppresses the s-wave BCS-type instability, clearing the way for…

We address the phase of a highly polarized Fermi gas across a narrow Feshbach resonance starting from the problem of a single down spin fermion immersed in a Fermi sea of up spins. Both polaron and pairing states are considered using the…

量子气体 · 物理学 2015-03-19 Ran Qi , Hui Zhai

Faraday rotation of radio source polarization provides a measure of the integrated magnetic field along the observational lines of sight. We compare a new, large sample of Faraday rotation measures (RMs) of polarized extragalactic sources…

天体物理学 · 物理学 2009-11-13 Yongzhong Xu , Philipp P. Kronberg , Salman Habib , Quentin W. Dufton

We consider the two-dimensional electron gas confined laterally to a narrow channel by a harmonic potential. As the Zeeman splitting matches the intersubband separation the nonlocal spin polarization develops a minimum as reported by Frolov…

介观与纳米尺度物理 · 物理学 2014-10-23 A. Iqbal , M. Khodas

Waves scattered at a self-oscillating mode can exhibit superradiance, or net amplification of an external harmonic excitation. This exotic behavior, arising from the nonlinear coupling between the mode and the incident wave, is…

动力系统 · 数学 2023-03-22 Tiemo Pedergnana , Nicolas Noiray

Faraday rotation measure synthesis is a method for analyzing multichannel polarized radio emissions, and it has emerged as an important tool in the study of galactic and extra-galactic magnetic fields. The method requires the recovery of…

宇宙学与河外天体物理 · 物理学 2015-06-03 M. Andrecut , J. M. Stil , A. R. Taylor

Optical Hall conductivity, as directly related to Faraday rotation, is theoretically studied for bilayer and trilayer graphene. In bilayer graphene, the trigonal warping of the band dispersion greatly affects the resonance structures in…

介观与纳米尺度物理 · 物理学 2012-10-17 Takahiro Morimoto , Mikito Koshino , Hideo Aoki

This paper is the first in a series revisiting the Faraday effect, or more generally, the theory of electronic quantum transport/optical response in bulk media in the presence of a constant magnetic field. The independent electron…

介观与纳米尺度物理 · 物理学 2008-11-26 Horia D. Cornean , G. Nenciu , Thomas G. Pedersen

Both the emission properties and evolution of Active Galactic Nuclei (AGN) radio jets are dependent on the magnetic (B) fields that thread them. Faraday Rotation measurements are a very important way of investigating these B fields, and can…

高能天体物理现象 · 物理学 2013-09-09 Eoin Murphy , Colm Coughlan , Denise Gabuzda

The quantitative analysis of the "catastrophic relaxation" of the coherent spin precession in $^3$He-B is presented. This phenomenon has been observed below the temperature about 0.5 T$_c$ as an abrupt shortening of the induction signal…

软凝聚态物质 · 物理学 2009-11-11 Yu. M. Bunkov , V. S. L'vov , G. E. Volovik

As is well known, the sound-speed profile has significant effects on underwater acoustic sound propagation. These effects can be quantified by normal-mode models, for example. The basic case is a laterally homogeneous medium, for which the…

大气与海洋物理 · 物理学 2016-04-11 Sven Ivansson

It is generally believed that the magneto-optical Faraday effect appears in the the bulk of a magnetic material and its sign is fully determined by the sign of the non-diagonal permittivity element. Here we reveal an additional contribution…

We have analyzed analytically the Faraday rotation of an electromagnetic wave for magnetoactive thin metallic film with a nanostructured surface profile. Periodical as well as random surface profiles were considered. The plasmon…

介观与纳米尺度物理 · 物理学 2014-02-21 Zhyrair Gevorkian , Vladimir Gasparian

We study the impact of spin-active scattering on Andreev spectra of point contacts between superconductors(SCs) and strongly spin-polarized ferromagnets(FMs) using recently derived boundary conditions for the Quasiclassical Theory of…

超导电性 · 物理学 2012-08-29 Roland Grein , Tomas Lofwander , Georgo Metalidis , Matthias Eschrig