中文
相关论文

相关论文: Optical Signatures of Spin-Orbit Interaction Effec…

200 篇论文

We have investigated the effect of spin-orbit (SO) coupling on the emission spectra of a quantum cascade laser. In an externally applied magnetic field parallel to the electron plane, the SO coupling would result in a double-peak structure…

介观与纳米尺度物理 · 物理学 2009-11-11 V. Apalkov , A. Bagga , T. Chakraborty

We present a theoretical study of the energy levels in a parabolically confined quantum dot in the presence of the Rashba spin-orbit interaction (SOI). The features of some low-lying states in various strengths of the SOI are examined at…

介观与纳米尺度物理 · 物理学 2007-05-23 W. H. Kuan , C. S. Tang , W. Xu

Paramagnetism or diamagnetism of a material are shown by parallel or antiparallel directions, respectively, of the induced magnetization under the influence of external magnetic field. Theoretical study of paramagnetic susceptibility and…

强关联电子 · 物理学 2023-11-15 Adam B. Cahaya

We study how the conductance of a quantum point contact is affected by spin-orbit interactions, for systems at zero temperature both with and without electron-electron interactions. In the presence of spin-orbit coupling, tuning the…

介观与纳米尺度物理 · 物理学 2015-01-07 Olga Goulko , Florian Bauer , Jan Heyder , Jan von Delft

We propose a novel approach to explore the properties of a quantum dot in the presence of the spin-orbit interaction and in a tilted magnetic field. The spin-orbit coupling within the quantum dot manifest itself as anti-crossing of the…

介观与纳米尺度物理 · 物理学 2009-11-11 Hong-Yi Chen , Vadim Apalkov , Tapash Chakraborty

We study effects of electron-electron interactions and confinement potential on the magneto-optical absorption spectrum in the far-infrared range of lateral quantum dot molecules. We calculate far-infrared (FIR) spectra for three different…

介观与纳米尺度物理 · 物理学 2009-11-11 M. Helle , A. Harju , R. M. Nieminen

Transport and thermodynamic properties of disordered conductors are considerably modified when the angle through which the electron spin precesses due to spin-orbit interaction (SOI) during the mean free time becomes significant. Cooperon…

介观与纳米尺度物理 · 物理学 2009-10-31 Yuli Lyanda-Geller

Spin manipulation in coupled quantum dots is of interest for quantum information applications. Control of the exchange interaction between electrons and holes via an applied electric field may provide a promising technique for such spin…

We study a two dimensional electron system in a parabolic confining potential and constant magnetic field for the case of harmonic electron-electron interaction. We present analytic results for the electrochemical potential versus magnetic…

介观与纳米尺度物理 · 物理学 2009-10-30 Antimo Angelucci , Arturo Tagliacozzo

The electron (hole) spin-photon interaction is studied in an asymmetrical InSb (Ge) nanowire quantum dot. The spin-orbit coupling in the quantum dot mediates not only a transverse spin-photon interaction, but also a longitudinal spin-photon…

介观与纳米尺度物理 · 物理学 2024-02-12 Rui Li

Confinement asymmetry effects on the photoabsorption of a quantum well are discussed by means of a sum-rules approach using a Hamiltonian including a Rashba spin-orbt coupling. We show that while the strength of the excitation is zero when…

超导电性 · 物理学 2015-05-18 A. Ambrosetti , J. M Escartin , E. Lipparini , F. Pederiva

We study a two-dimensional electron system in the presence of spin-orbit interaction. It is shown analytically that the spin-orbit interaction acts as a transversal effective electric field, whose orientation depends on the sign of the…

介观与纳米尺度物理 · 物理学 2015-05-28 Manuel Valin-Rodriguez

We show that when an electron or photon propagates in a cylindrically symmetric waveguide, its spin angular momentum (SAM) and its orbital angular momentum (OAM) interact. Remarkably, we find that the dynamics resulting from this spin-orbit…

量子物理 · 物理学 2009-12-09 C. C. Leary , M. G. Raymer , S. J. van Enk

We find for the first time the ground state energy and the optical absorption spectra for N electrons (holes) interacting with each other and with the longitudinal optical (LO) phonons at an arbitrary electron-phonon coupling strength…

强关联电子 · 物理学 2007-05-23 J. T. Devreese , S. N. Klimin , V. M. Fomin , F. Brosens

Coulomb interaction among electrons is found to have profound effects on the electronic properties of anisotropic quantum dots in a perpendicular external magnetic field, and in the presence of the Rashba spin-orbit interaction. This is…

介观与纳米尺度物理 · 物理学 2015-06-16 Siranush Avetisyan , Pekka Pietiläinen , Tapash Chakraborty

Two-color spin-noise spectroscopy of interacting electron spins in singly charged semiconductor quantum dots provides information on the inter quantum dot interactions. We investigate the spin cross-correlation function in a quantum dot…

介观与纳米尺度物理 · 物理学 2022-04-20 Andreas Fischer , Iris Kleinjohann , Nikolai A. Sinitsyn , Frithjof B. Anders

The electron and hole states in a CdTe quantum dot containing a single magnetic impurity in an external magnetic field are investigated, using the multiband approximation which includes the heavy hole-light hole coupling effects. The…

介观与纳米尺度物理 · 物理学 2010-08-10 Aram Manaselyan , Tapash Chakraborty

We report on the optical spectroscopy of the spin of two Co atoms in a quantum dot and interacting with a single exciton. The spectrum of quantum dots containing two Co atoms are exchange interaction and by the strain at the location of the…

介观与纳米尺度物理 · 物理学 2024-04-16 L. Besombes , J. Kobak , W. Pacuski

We show how a spin interaction between electrons localized in neighboring quantum dots can be induced and controlled optically. The coupling is generated via virtual excitation of delocalized excitons and provides an efficient coherent…

凝聚态物理 · 物理学 2009-11-07 C. Piermarocchi , Pochung Chen , L. J. Sham , D. G. Steel

The effects of spin-orbit coupling on the two-electron spectra in lateral coupled quantum dots are investigated analytically and numerically. It is demonstrated that in the absence of magnetic field the exchange interaction is practically…

介观与纳米尺度物理 · 物理学 2010-04-12 Fabio Baruffa , Peter Stano , Jaroslav Fabian