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Semiconductor quantum computer design with 100 nm separation of nuclear-spin qubits | | Vladimir Privman
; Dima Mozyrsky
; | | Date: |
20 Mar 2001 | | Journal: | Proc. Int. Conf. Quantum Inf. (ICQI 2001), article PB19, 3 pages, eds. N.P. Bigelow, J.H. Eberly, C.R. Stroud, Jr. and I.A. Walmsley (Opt. Soc. Amer., Washington, 2002); Extended version: Mater. Phys. Mech. 4, pages 5-7 (2001). | | Subject: | Quantum Physics; Mesoscopic Systems and Quantum Hall Effect | quant-ph cond-mat.mes-hall | | Abstract: | We combine elements of the 1998 quantum computing proposals by Privman, Vagner and Kventsel, and by Kane, with the new idea of nuclear-spin qubit interactions mediated indirectly via the bound outer electrons of impurity atoms whose nuclear spins 1/2 are the qubits. These electrons, in turn, interact via the two-dimensional electron gas in the quantum Hall effect regime. The resulting quantum computing scheme retains all the gate-control and measurement aspects of the proposal by Kane, but allows qubit spacing at distances of order 100 nm, attainable with the present-day semiconductor-heterostructure device technologies. | | Source: | arXiv, quant-ph/0103116 | | Services: | Forum | Review | PDF | Favorites | |
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