99 citations
- National Center for Theoretical Sciences, Physics Division19 papers
- National Yang Ming Chiao Tung UniversityTW10 papers
- University of IcelandIS7 papers
- National Tsing Hua UniversityTW5 papers
- Institute of SpectroscopyRU3 papers
- Lund UniversitySE3 papers
- National Central UniversityTW3 papers
- National Taiwan UniversityTW3 papers
- University of California, Santa BarbaraUS2 papers
- Australian National UniversityAU1 paper
- Bar-Ilan UniversityIL1 paper
- China University of TechnologyTW1 paper
11 papers · 1 filter
Transport through a quantum ring, a dot and a barrier embedded in a nanowire in magnetic field
Vidar Gudmundsson, Yu-Yu Lin, Chi-Shung Tang +3
We investigate the transport through a quantum ring, a dot and a barrier embedded in a nanowire in a homogeneous perpendicular magnetic field. To be able to treat scattering potent…
Generation of spin current and polarization under dynamic gate control of spin-orbit interaction in low-dimensional semiconductor systems
C. S. Tang, A. G. Mal'shukov, K. A. Chao
Based on the Keldysh formalism, the Boltzmann kinetic equation and the drift diffusion equation have been derived for studying spin polarization flow and spin accumulation under ef…
Conformational Properties of an Adsorbed Charged Polymer
Chi-Ho Cheng, Pik-Yin Lai
The behavior of a strongly charged polymer adsorbed on an oppositely charged surface of low-dielectric constant is formulated by the functional integral method. By separating the t…
Multi-mode transport through a quantum nanowire with two embedded dots
Vidar Gudmundsson, Gudny Gudmundsdottir, Jens Hjorleifur Bardarson +3
We investigate the conductance of a quantum wire with two embedded quantum dots using a T-matrix approach based on the Lippmann-Schwinger formalism. The quantum dots are represente…
Ground-State Degeneracy of Correlated Insulators with Edges
Gil Refael, Hsiu-Hau Lin
Using the topological flux insertion procedure, the ground-state degeneracy of an insulator on a periodic lattice with filling factor was found to be at least -fold. App…
DC Spin Current Generation in a Rashba-type Quantum Channel
L. Y. Wang, C. S. Tang, C. S. Chu
We propose and demonstrate theoretically that resonant inelastic scattering (RIS) can play an important role in dc spin current generation. The RIS makes it possible to generate dc…