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We theoretically study the photoelectron angular distributions (PADs) from two-color two-photon near-threshold ionization of hydrogen and noble gas (He, Ne, and Ar) atoms by a combined action of femtosecond extreme ultraviolet (EUV) and…

Atomic Physics · Physics 2015-06-22 Kenichi L. Ishikawa , A. K. Kazansky , N. M. Kabachnik , Kiyoshi Ueda

The two-color above-threshold ionization (ATI) of atoms and ions is investigated for a vortex Bessel beam in the presence of a strong near-infrared (NIR) light field. While the photoionization is caused by the photons from the weak but…

Atomic Physics · Physics 2016-12-07 D. Seipt , R. A. Müller , A. Surzhykov , S. Fritzsche

The dressed states arising from the interaction between electrons and holes, and off-resonant electromagnetic radiation have been investigated for recently fabricated gapped and anisotropic black phosphorus. Our calculations were carried…

Mesoscale and Nanoscale Physics · Physics 2017-10-11 Andrii Iurov , Liubov Zhemchuzhna , Godfrey Gumbs , Danhong Huang

We present new anisotropic black brane solutions in 5D Einstein-dilaton-two-Maxwell system. The anisotropic background is specified by an arbitrary dynamical exponent $\nu$, a nontrivial warp factor, a non-zero dilaton field, a non-zero…

High Energy Physics - Theory · Physics 2018-06-12 Irina Aref'eva , Kristina Rannu

We show that the wave packet of a biphoton generated via spontaneous parametric down conversion is strongly anisotropic. Its anisotropic features manifest themselves very clearly in comparison of measurements performed in two different…

Quantum Physics · Physics 2009-11-13 M. V. Fedorov , M. A. Efremov , P. A. Volkov , E. V. Moreva , S. S. Straupe , S. P. Kulik

Using reflective cross-polarized 2D THz time-domain spectroscopy in the range of 1-12 THz, we follow the trajectory of the out-of-equilibrium electron population in the low-bandgap semiconductor InSb. The 2D THz spectra show a set of…

Strongly Correlated Electrons · Physics 2019-06-10 S. Houver , L. Huber , M. Savoini , E. Abreu , S. L. Johnson

The phenomenon of spatial (polar) asymmetry of produced photoelectron emission due to strong-field multiphoton process of above-threshold ionization (ATI) in atoms irradiated by a linearly polarized two-color (bichromatic) laser field…

Atomic Physics · Physics 2017-06-19 P. E. Pyak , E. A. Andreeva , V. I. Usachenko

Compact objects have an intrinsic anisotropy due to the presence of strong magnetic fields that cause considerable modifications on the equations of state (EoS). In this work, we study the impact of this anisotropy in the size and shape of…

General Relativity and Quantum Cosmology · Physics 2020-02-05 S. López Pérez , D. Manreza Paret , G. Quintero Angulo , A. Pérez Martínez , D. Alvear Terrero

We present ab initio calculations using the $R$-matrix with time dependence (RMT) method for high-order harmonic generation (HHG) in argon in a short, intense pulse regime. The calculations employ a $6$-cycle $\sin^2$ pulse at $850$ nm with…

Atomic Physics · Physics 2026-04-23 Aaron T. Bondy , Klaus Bartschat

The transverse momentum dependence of the azimuthal anisotropy parameter v_{2}, the second harmonic of the azimuthal distribution, for electrons at mid-rapidity (|eta|<0.35) has been measured with the PHENIX detector in Au+Au collisions at…

Nuclear Experiment · Physics 2009-11-11 S. Sakai

We extend the conventional transfer matrix method to include anisotropic features for electron transmission in two-dimensional materials, such as breaking reflection law in pseudo-spin phases and wave vectors. This method allows to study…

Materials Science · Physics 2022-12-15 Erik Díaz-Bautista , Yonatan Betancur-Ocampo , Alfredo Raya

The antiferromagnetically (AFM) ordered state of GdRh$_{2}$Si$_{2}$ which consists of AFM-stacked ferromagnetic layers is investigated by magnetic resonance spectroscopy. The almost isotropic Gd$^{3+}$ paramagnetic resonance becomes…

Strongly Correlated Electrons · Physics 2018-06-22 J. Sichelschmidt , K. Kliemt , M. Hofmann-Kliemt , C. Krellner

It is challenging to characterize thermal conductivity of materials with strong anisotropy. In this work, we extend the time-domain thermoreflectance (TDTR) method with a variable spot size approach to simultaneously measure the in-plane…

Materials Science · Physics 2018-07-04 Puqing Jiang , Xin Qian , Ronggui Yang

In the present study, the anisotropic resistivity of the monolayer graphene has been obtained in semiclassical regime beyond the Dirac point approximation. In particular, detailed investigations were made on the dependence of conductivity…

Mesoscale and Nanoscale Physics · Physics 2015-07-20 J. Azizi , A. Phirouznia , K. Hasanirokh

By means of three dimensional high-resolution hybrid simulations we study the properties of the magnetic field spectral anisotropies near and beyond ion kinetic scales. By using both a Fourier analysis and a local analysis based on…

Solar and Stellar Astrophysics · Physics 2019-04-18 Simone Landi , Luca Franci , Emanuele Papini , Andrea Verdini , Lorenzo Matteini , Petr Hellinger

Angle-resolved polarized Raman (ARPR) spectroscopy provides insights into optical anisotropy and symmetry-related electron-photon/electron-phonon couplings of anisotropic layered materials (ALMs). However, since their discovery over ten…

Mesoscale and Nanoscale Physics · Physics 2025-07-21 Jia-Liang Xie , Tao Liu , Yu-Chen Leng , Rui Mei , Heng Wu , Chen-Kai Liu , Jia-Hong Wang , Yang Li , Xue-Feng Yu , Miao-Ling Lin , Ping-Heng Tan

Three experimental concepts investigating possible anisotropy of the speed of light are presented. They are based on i) beam deflection in a 180 degree magnetic arc, ii) narrow resonance production in an electron-positron collider, and iii)…

Instrumentation and Detectors · Physics 2015-06-22 B. Wojtsekhowski

Intensive radiation of magnetic bremsstrahlung type (synchrotron radiation) resulting from the interaction of escaping quarks with the collective confining colour field is discussed as a new possible mechanism of observed direct photon…

High Energy Physics - Phenomenology · Physics 2015-06-11 V. V. Goloviznin , A. M. Snigirev , G. M. Zinovjev

We estimate the anisotropic index of an anisotropic fractional Brownian field. For all directions, we give a convergent estimator of the value of the anisotropic index in this direction, based on generalized quadratic variations. We also…

Statistics Theory · Mathematics 2016-08-16 Hermine Biermé , Frédéric Richard

Our computation effort is primarily concentrated on support of current and future measurements being carried out at various synchrotron radiation facilities around the globe, and photodissociation computations for astrophysical…

Atomic Physics · Physics 2017-01-17 B M McLaughlin , C P Ballance , M S Pindzola , P C Stancil , S Schippers , A Müller
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