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The possibility of a novel type of semiconductor quantum dots obtained by spatially modulating the spin-orbit coupling intensity in III-V heterostructures is discussed. Using the effective mass model we predict confined one-electron states…

介观与纳米尺度物理 · 物理学 2009-11-10 M. Valin-Rodriguez , A. Puente , L. Serra

We discuss the quasiclassical Green function method for a two-dimensional electron gas in the presence of spin-orbit coupling, with emphasis on the meaning of the $\xi$-integration procedure. As an application of our approach, we…

介观与纳米尺度物理 · 物理学 2009-11-13 Cosimo Gorini , Peter Schwab , Michael Dzierzawa , Roberto Raimondi

We develop a semiclassical kinetic theory for electron spin relaxation in semiconductors. Our approach accounts for elastic as well as inelastic scattering and treats Elliott-Yafet and motional-narrowing processes, such as D'yakonov-Perel'…

材料科学 · 物理学 2009-11-10 Franz X. Bronold , Avadh Saxena , Darryl L. Smith

Densities of states weighted with the diagonal matrix elements of two operators A and B, i.e., rho^(A,B)(E) = sum_n <n|A|n><n|B|n> delta(E-E_n) cannot, in general, be written as a trace formula, and therefore no simple extension of…

chao-dyn · 物理学 2009-10-31 J. Main , G. Wunner

A criterion for effective irrelevancy of the spin-orbit coupling in the heavy-fermion superconductivity is discussed on the basis of the impurity Anderson model with two sets of Kramers doublets. Using Wilson's numerical…

强关联电子 · 物理学 2009-11-11 Hiroaki Kusunose

We develop a semiclassical density functional theory in the context of quantum dots. Coulomb blockade conductance oscillations have been measured in several experiments using nanostructured quantum dots. The statistical properties of these…

介观与纳米尺度物理 · 物理学 2009-10-31 Denis Ullmo , Tatsuro Nagano , Steven Tomsovic , Harold U. Baranger

We study spin-polarized quasiparticle transport in a mesoscopic superconductor with a spin- splitting field in the presence of co-flowing supercurrent. In such a system, the nonequilibrium state is characterized by charge, spin, energy and…

超导电性 · 物理学 2018-08-01 Faluke Aikebaier , Mihail A. Silaev , T. T. Heikkilä

We investigate the influence of spin-orbit interaction on ballistic transport through chaotic cavities by using semiclassical methods. Our approach is based on the Landauer formalism and the Fisher-Lee relations, appropriately generalized…

介观与纳米尺度物理 · 物理学 2010-02-25 Jens Bolte , Daniel Waltner

A Josephson junction made of a generic magnetic material sandwiched between two conventional superconductors is studied in the ballistic semi-classic limit. The spectrum of Andreev bound states is obtained from the single-valuedness of a…

超导电性 · 物理学 2016-06-10 François Konschelle , F. Sebastián Bergeret , Ilya V. Tokatly

Semiclassical periodic orbit theory is used in many branches of physics. However, most applications of the theory have been to systems which involve only single particle dynamics. In this work, we develop a semiclassical formalism to…

混沌动力学 · 物理学 2009-10-31 Jamal Sakhr , Niall D. Whelan

We present a semiclassical trace formula for the canonical partition function of arbitrary one-dimensional systems. The approximation is obtained via the stationary exponent method applied to the phase-space integration of the density…

量子物理 · 物理学 2007-05-23 Fernando Parisio , M. A. M. de Aguiar

We investigate static charge and spin density modulation patterns along a ferromagnet/semiconductor single junction quantum wire in the presence of spin-orbit coupling. Coherent scattering theory is used to calculate the charge and spin…

介观与纳米尺度物理 · 物理学 2009-11-11 Minchul Lee , Christoph Bruder

I employ a semiphenomenological model introduced in A. M. Tsvelik, A. V. Chubukov, Phys. Rev. Lett. {\bf 98}, 237001 (2007) to describe the state with co-existing superconductivity (SC) and charge density wave (CDW) recently discovered in…

超导电性 · 物理学 2015-06-12 A. M. Tsvelik

We derive semiclassical quantization conditions for systems with spin. To this end one has to define the notion of integrability for the corresponding classical system which is given by a combination of the translational motion and…

量子物理 · 物理学 2009-11-07 Stefan Keppeler

In the semiclassical approximation of Grassmann-valued electric charges for regularizing Coulomb self-energies, we extract the unique acceleration-independent interaction hidden in any Lienard-Wiechert solution for the system of N…

高能物理 - 理论 · 物理学 2014-11-18 D. Alba , H. Crater , L. Lusanna

Utilizing an adiabatic approximation method a bipartite qudit-oscillator Hamiltonian is explicitly studied for low spin values in both strong and ultrastrong coupling regimes. The quasiprobability densities on the hybrid factorized phase…

量子物理 · 物理学 2021-06-09 M. Balamurugan , R. Chakrabarti , B. Virgin Jenisha , V. Yogesh

We propose a computational method that simplifies drastically the inclusion of spin-orbit interaction in density functional theory implemented on localised atomic orbital basis sets. Our method is based on a well-known procedure for…

材料科学 · 物理学 2009-11-11 Lucas Fernandez-Seivane , Miguel A. Oliveira , Stefano Sanvito , Jaime Ferrer

We consider the time dependent Schr\"odinger equation with a coupling spin-orbit in the semi-classical regime $\hbar\searrow 0$ and large spin number $\spin\rightarrow +\infty$ such that $\hbar^\delta\spin=c$ where $c>0$ and $\delta>0$ are…

数学物理 · 物理学 2024-03-22 Didier Robert

We analyze the dynamical generation of entanglement in systems of two interacting spins initially prepared in a product of spin coherent states. For arbitrary time-independent Hamiltonians, we derive a semiclassical expression for the…

量子物理 · 物理学 2012-05-29 A. D. Ribeiro , R. M. Angelo

We describe how the semiclassical theory of radical pair recombination reactions recently introduced by two of us [D. E. Manolopoulos and P. J. Hore, J. Chem. Phys. 139, 124106 (2013)] can be generalised to allow for different singlet and…

化学物理 · 物理学 2014-07-28 Alan M. Lewis , David E. Manolopoulos , P. J. Hore