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Dissipationless Spin Current in Anisotropic p-Doped Semiconductors
Bogdan A. Bernevig, JiangPing Hu, Eran Mukamel +1
Recently, dissipationless spin current has been predicted for the p-doped semiconductors with spin-orbit coupling. Here we investigate the effect of spherical symmetry breaking on…
The Eight Dimensional Quantum Hall Effect and the Octonions
B. A. Bernevig, J. P. Hu, N. Toumbas +1
We construct a generalization of the quantum Hall effect where particles move in an eight dimensional space under an SO(8) gauge field. The underlying mathematics of this particle…
Effective field theory description of the higher dimensional quantum Hall liquid
B. Andrei Bernevig, Chyh-Hong Chern, Jiang-Ping Hu +2
We derive an effective topological field theory model of the four dimensional quantum Hall liquid state recently constructed by Zhang and Hu. Using a generalization of the flux att…
A Four Dimensional Generalization of the Quantum Hall Effect
Shou-Cheng Zhang, Jiangping Hu
We construct a generalization of the quantum Hall effect, where particles move in four dimensional space under a SU(2) gauge field. This system has a macroscopic number of degenera…
Current Induced Magnetization Switching in Small Domains of Different Anisotropies
Ya. B. Bazaliy, B. A. Jones, Shou-Cheng Zhang
Several recent experimental studies have confirmed the possibility of switching the magnetization direction in the small magnetic domains by pumping large spin-polarized currents t…
Projected SO(5) Models
Shou-Cheng Zhang, Jiang-Ping Hu, Enrico Arrigoni +2
We construct a class of projected SO(5) models where the Gutzwiller constraint of no-double-occupancy is implemented exactly. We introduce the concept of projected SO(5) symmetry w…
A new class of collective excitations of the Hubbard model I: excitation of the negative-- model
Eugene Demler, Shou-Cheng Zhang, Nejat Bulut +1
In this series of papers we present a detailed study of the particle--particle collective excitations of the Hubbard model, and their contribution to the density and spin excitatio…
Duality and Universality for the Chern-Simons bosons
Leonid P. Pryadko, Shou-Cheng Zhang
By mapping the relativistic version of the Chern-Simons-Landau-Ginzburg theory in 2+1 dimensions to the 3D lattice Villain x-y model coupled with the Chern-Simons gauge field, we i…
Universal Fluctuation of the Hall Conductance in the Random Magnetic Field
K. Chaltikian, L. Pryadko, S. C. Zhang
We show that the RMS fluctuation of the antisymmetric part of the Hall conductance of a planar mesoscopic metal in a random magnetic field with zero average is universal, of the or…
Spontaneous Inter-layer Coherence in Double-Layer Quantum-Hall Systems I: Charged Vortices and Kosterlitz-Thouless Phase Transitions
K. Moon, H. Mori, Kun Yang +5
At strong magnetic fields double-layer two-dimensional-electron-gas systems can form an unusual broken symmetry state with spontaneous inter-layer phase coherence. In this paper we…
Collective excitations in double-layer quantum Hall systems
A. H. MacDonald, Shou-Cheng Zhang
We study the collective excitation spectra of double-layer quantum-Hall systems using the single mode approximation. The double-layer in-phase density excitations are similar to th…