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5 papers · 1 filter
Geometric quantum gates robust against stochastic control errors
Shi-Liang Zhu, Paolo Zanardi
We analyze a scheme for quantum computation where quantum gates can be continuously changed from standard dynamic gates to purely geometric ones. These gates are enacted by control…
Influences of spin accumulation on the intrinsic spin Hall effect in two dimensional electron gases with Rashba spin-orbit coupling
Xiaohua Ma, Liangbin Hu, Ruibao Tao +1
In a two dimensional electron gas with Rashba spin-orbit coupling, the external electric field may cause a spin Hall current in the direction perpendicular to the electric field. T…
Representation of SO(3) Group by a Maximally Entangled State
W. LiMing, Z. L. Tang, C. J. Liao
A representation of the SO(3) group is mapped into a maximally entangled two qubit state according to literatures. To show the evolution of the entangled state, a model is set up o…
Geometric quantum computation and multi-qubit entanglement with superconducting charge qubits inside a cavity
Shi-Liang Zhu, Z. D. Wang, Paolo Zanardi
We analyze a new scheme for quantum information processing, with superconducting charge qubits coupled through a cavity mode, in which quantum manipulations are insensitive to the…
Effects of spin imbalance on the electric-field driven quantum dissipationless spin current in -doped Semiconductors
Liangbin Hu, Ju Gao, Shun-Qing Shen
It was proposed recently by Murakami et al. [Science \textbf{301}, 1348(2003)] that in a large class of -doped semiconductors, an applied electric field can drive a quantum diss…