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Keeping in mind the experimental results that indicate local lattice distortions, charge and spin orderings, we have developed a phenomenological approach which allows us to describe the electronic phase diagram of cuprates and related…

超导电性 · 物理学 2009-11-07 Sher Alam , T. Yanagisawa , H. Oyanagi

Finite-field calculations in periodic insulators are technically and conceptually challenging, due to fundamental problems in defining polarization in extended solids. While significant progress has been made recently with the establishment…

材料科学 · 物理学 2011-03-03 Massimiliano Stengel , Nicola A. Spaldin , David Vanderbilt

The angular dependence of spin-orbit torque in a disordered Co/Pt bilayer is calculated using a first-principles non-equilibrium Green's function formalism with an explicit supercell averaging over Anderson disorder. In addition to the…

材料科学 · 物理学 2019-02-06 K. D. Belashchenko , Alexey A. Kovalev , M. van Schilfgaarde

We derive octupole-level secular perturbation equations for hierarchical triple systems, using classical Hamiltonian perturbation techniques. By extending previous work done to leading (quadrupole) order to octupole level (i.e., including…

天体物理学 · 物理学 2009-10-31 Eric B. Ford , Boris Kozinsky , Frederic A. Rasio

The first-order correction to the one-form sector of equations of the $3d$ higher-spin theory is derived from the generating nonlinear HS system by virtue of the shifted homotopy approach. The family of solutions to the generating system…

高能物理 - 理论 · 物理学 2023-03-20 A. V. Korybut , A. A. Sevostyanova , M. A. Vasiliev , V. A. Vereitin

Within a phenomenological approach possible forms of the order parameter of the superfluid phases of 3He in a vicinity of the transition temperature are discussed. Effect of aerogel is described by a random tensor field interacting with the…

超导电性 · 物理学 2009-11-10 I. A. Fomin

The energy eigenvalues of the anharmonic oscillator characterized by the cubic potential for various eigenstates are determined within the framework of the hypervirial-Pad\'e summation method. For this purpose the E[3,3] and E[3,4] Pad\'e…

量子物理 · 物理学 2007-05-23 Altug Arda

We use recently developed effective field theory techniques to calculate the third order post-Newtonian correction to the spin-spin potential between two spinning objects. This correction represents the first contribution to the spin-spin…

广义相对论与量子宇宙学 · 物理学 2009-11-11 Rafael A. Porto , Ira Z. Rothstein

The effects of three-dimensional perturbations in two-dimensional turbulence are investigated, through a conformal field theory approach. We compute scaling exponents for the energy spectra of enstrophy and energy cascades, in a strong…

高能物理 - 理论 · 物理学 2009-10-28 L. Moriconi

We analyze the low-energy spin structure of the nucleon in a covariant effective field theory with explicit spin-3/2 degrees of freedom to third order in the small scale expansion. Using the available data on the strong and electromagnetic…

高能物理 - 唯象学 · 物理学 2015-06-11 V. Bernard , E. Epelbaum , H. Krebs , U. -G. Meißner

We employ Heavy Baryon Chiral Perturbation Theory (HB$\chi$PT), a non-relativistic effective field theory that treats baryons as heavy static sources, to calculate the electromagnetic polarizabilities of spin-3/2 baryons in two sectors: the…

高能物理 - 唯象学 · 物理学 2025-10-29 Liang-Zhen Wen , Yan-Ke Chen , Lu Meng , Shi-Lin Zhu

We report a measurement of dressed-spin effects of polarized 3He atoms from a cold atomic source traversing a region of constant magnetic field B0 and a transverse oscillatory dressing field Bd cos(omega * t). The observed effects are…

核实验 · 物理学 2008-11-26 A. Esler , J. C. Peng , S. K. Lamoreaux , C. -Y. Liu , D. Chandler , D. Howell , J. R. Torgerson

Theory of Rainer and Vuorio of small objects in superfluid ^3He is applied for calculation of the average orientational effect of a deformed aerogel on the order parameter of 3He. The minimum deformation which stabilizes the ordered state…

无序系统与神经网络 · 物理学 2009-11-13 E. V. Surovtsev , I. A. Fomin

We have performed an extensive test of the ability of density functional theory within several approximations for the exchange-correlation functional, local density approximation+Hubbard $U$ and local density approximation + dynamic mean…

强关联电子 · 物理学 2014-10-28 Oscar Grånäs , Igor di Marco , Olle Eriksson , Lars Nordström , Corina Etz

In this paper, we establish a general framework for calculating pionless matrix elements between $A=3$ bound-states up to next-to-leading-order. This framework is useful for pionless calculations of electroweak observables, such as…

核理论 · 物理学 2019-02-21 Hilla De-Leon , Lucas Platter , Doron Gazit

A three-dimensional harmonic oscillator with spin non-commutativity in the phase space is considered. The system has a regular symplectic structure and by using supersymmetric quantum mechanics techniques, the ground state is calculated…

高能物理 - 理论 · 物理学 2013-05-30 H. Falomir , J. Gamboa , M. Loewe , F. Mendez , J. C. Rojas

This work is concerned with suitable choices of tetrad fields and coordinate systems for the Hamiltonian formalism of a spinning particle derived in [E. Barausse, E. Racine, and A. Buonanno, Phys. Rev. D 80, 104025 (2009)]. After…

广义相对论与量子宇宙学 · 物理学 2016-02-03 Daniela Kunst , Tomáš Ledvinka , Georgios Lukes-Gerakopoulos , Jonathan Seyrich

Spherical harmonics of degree 4 are widely used in volumetric frame fields design due to their ability to reproduce octahedral symmetry. In this paper we show how to use harmonics of degree 3 (octupoles) for the same purpose, thereby…

数值分析 · 数学 2023-01-31 Yuri Nesterenko

A distorted spin-dependent spectral function for 3He is considered for the extraction of the transverse-momentum dependent parton distributions in the neutron from semi-inclusive deep inelastic electron scattering off polarized 3He at…

In our previous article [4] an approach to derive Papapetrou equations for constrained electromagnetic field was demonstrated by use of field variational principles. The aim of current work is to present more universal technique of…

广义相对论与量子宇宙学 · 物理学 2007-06-29 A. T. Muminov