Cluster State Entanglement of Semiconductor Quantum Dots Based on Faraday Rotation

Abstract

We propose a scheme for a large-scale cluster state preparation of single-charged semiconductor quantum dots utilizing Faraday rotation. Without interaction between quantum dots, the exciton induced Faraday rotation could distribute the spatially separate quantum dots into a quantum network assisted by cavity QED. We obtain the corresponding parameters from the numerical simulation based on the input-output process for the required Faraday rotation and some discussion is made in view of experimental feasibility.

Controlling Sudden Birth and Sudden Death of Entanglement at Finite Temperature

“…Entanglement, is now viewed as a physical resource, which provides a means to perform quantum computation and quantum communication [1][2][3][4][5][6][7][8]. Therefore, great efforts have been made to investigate entanglement characterization, entanglement control, and entanglement production in solid-state systems such as CQED and spin chains [9][10][11][12][13][14][15][16]. In particular, the Heisenberg spin chain has been used to construct a quantum computer in many physical systems such as quantum dots [17], nuclear spins [18], superconductor [19] and optical lattice [20,21] based systems.…”