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We investigate the magnetic excitation spectrum in the helical state of a noncentrosymmetric superconductor with inversion symmetry breaking and strong Rashba spin-orbit coupling. For this purpose, we derive the general expressions of the…

Superconductivity · Physics 2023-04-13 Alireza Akbari , Peter Thalmeier

The Green function (GF) equation of motion technique for solving the effective two-band Hubbard model of high-T_c superconductivity in cuprates [N.M. Plakida et al., Phys. Rev. B, v. 51, 16599 (1995); JETP, v. 97, 331 (2003)] rests on the…

Superconductivity · Physics 2009-11-13 Gh. Adam , S. Adam

Magneto-oscillations in two-dimensional systems with spin-orbit interaction are typically characterized by fast Shubnikov-de~Haas (SdH) oscillations and slower spin-orbit-related beatings. The characterization of the full SdH oscillatory…

Mesoscale and Nanoscale Physics · Physics 2024-05-24 Hamed Gramizadeh , Denis R. Candido , Andrei Manolescu , J. Carlos Egues , Sigurdur I. Erlingsson

We report on spatially resolved measurements of the spin-orbit effective magnetic field in a GaAs/InGaAs quantum-well. Biased gate electrodes lead to an electric-field distribution in which the quantum-well electrons move according to the…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 L. Meier , G. Salis , E. Gini , I. Shorubalko , K. Ensslin

Due to non-linear structure, iterative Green's function methods can result in multiple different solutions even for simple molecular systems. In contrast to the wave-function methods, a detailed and careful analysis of such molecular…

Chemical Physics · Physics 2021-08-24 Pavel Pokhilko , Dominika Zgid

The Green function of the quark-antiquark system in the confining background field is analysed using the Feynman-Schwinger formalism. The Hamiltonian for the case of massive spinning quarks is obtained in the form containing essentially…

High Energy Physics - Phenomenology · Physics 2007-05-23 V. M. Kustov

The intrinsic spin-Hall effect in hexagon-shaped samples is investigated. To take into account the spin-orbit couplings and to fit the hexagon edges, we derive the triangular version of the tight-binding model for the linear Rashba [Sov.…

Mesoscale and Nanoscale Physics · Physics 2007-08-16 Son-Hsien Chen , Ming-Hao Liu , Ching-Ray Chang

We investigate the spin-orbit induced spin-interference pattern of ballistic electrons travelling along any regular polygon. It is found that the spin-interference depends strongly on the Rashba and Dresselhaus spin-orbit constants as well…

Mesoscale and Nanoscale Physics · Physics 2013-05-29 Marc J. van Veenhuizen , Takaaki Koga , Junsaku Nitta

We prove the existence and pointwise bounds of the Green functions for stationary Stokes systems with measurable coefficients in two dimensional domains. We also establish pointwise bounds of the derivatives of the Green functions under a…

Analysis of PDEs · Mathematics 2018-11-06 Jongkeun Choi , Doyoon Kim

We solve analytically the energy eigenvalue problem of narrow semiconductor quantum rings with a general spin-orbit term that includes as a special case the Rashba and Dresselhaus interactions acting simultaneously. The eigenstates and…

Mesoscale and Nanoscale Physics · Physics 2020-09-18 J. M. Lía , P. I. Tamborenea

The Schr\"{o}dinger equation for an electron in a mesoscopic ring, in the presence of the Rashba and linear Dresselhaus terms of the spin-orbit interaction (SOI) and of a magnetic field $B$, is solved exactly. The effective electric fields…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 X. F. Wang , P. Vasilopoulos

We explore spin and charge transport phenomena in two dimensional electron gas in presence of Rashba spin-orbit coupling connected to two ideal Ferromagnetic leads. In particular we show through a combination of analytical and numerical…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 T. P. Pareek

We describe the computation of generalized Green functions and 2-parameter Green functions for finite reductive groups.

Representation Theory · Mathematics 2020-04-06 Frank Lübeck

A recursive Green's function technique is developed to calculate the spin-dependent conductance in mesoscopic structures. Using this technique, we study the spin-dependent electronic transport of quantum point contacts in the presence of…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Shi-Liang Zhu , Z. D. Wang , Lian Hu

We study spin dynamics in a two-dimensional electron gas with a pure gauge non-Abelian spin-orbit field, for which systems with balanced Rashba and Dresselhaus spin-orbit couplings, and the (110)-axis grown GaAs quantum wells are typical…

Mesoscale and Nanoscale Physics · Physics 2010-10-20 I. V. Tokatly , E. Ya. Sherman

We introduce an analytical approximation scheme to diagonalize parabolically confined two dimensional electron systems with both the Rashba and Dresselhaus spin-orbit interactions. The starting point of our perturbative expansion is a…

Mesoscale and Nanoscale Physics · Physics 2014-04-07 Sigurdur I. Erlingsson , J. Carlos Egues , Daniel Loss

We extend the upper estimates obtained by M. Carlehed and B.-Y. Chen about the ratio of the classical and pluricomplex Green functions to the case of $\mathcal C^2$-smooth locally $\mathbb C$-convexifiable domains of finite type. We also…

Complex Variables · Mathematics 2018-09-17 Nikolai Nikolov , Pascal J. Thomas

We study the symmetry properties of the Hubbard model with spin-orbit interactions of Rashba and Dresselhaus type. These interactions break the rotational symmetry in spin space, so that the magnetic order cannot be excluded by using the…

Strongly Correlated Electrons · Physics 2015-06-11 Giuseppe Guarnaccia , Canio Noce

We compute the Green functions and correlator functions for N twist fields for branes at angles on T^2 and we show that there are N-2 different configurations labeled by an integer M which is roughly associated with the number of obtuse…

High Energy Physics - Theory · Physics 2015-06-05 Igor Pesando

Homogeneous and inhomogeneous biharmonic equation are considered on the $n$-dimensional unit sphere. The Green function is given as a series of Gegenbauer polynomials. In the paper, explicit representations of the Green function are found…

Analysis of PDEs · Mathematics 2025-07-08 Ilona Iglewska-Nowak