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Double occupancy errors in quantum computing operations: Corrections to adiabaticity

Requist, Ryan, Schliemann, John, Abanov, Alexander G. and Loss, Daniel (2005) Double occupancy errors in quantum computing operations: Corrections to adiabaticity. Phys. Rev. B 71, p. 115315.

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Other URL: http://link.aps.org/doi/10.1103/PhysRevB.71.115315, http://prb.aps.org/pdf/PRB/v71/i11/e115315


We study the corrections to adiabatic dynamics of two coupled quantum dot spin qubits, each dot singly occupied with an electron, in the context of a quantum computing operation. Tunneling causes double occupancy at the conclusion of an operation and constitutes a processing error. We model the gate operation with an effective two-level system, where nonadiabatic transitions correspond to double ...


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Item type:Article
Date:21 March 2005
Institutions:Physics > Institute of Theroretical Physics > Chair Professor Grifoni > Group John Schliemann
Projects:NCCR, EU-Spintronics
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Dewey Decimal Classification:500 Science > 530 Physics
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:No
Item ID:28233
Owner only: item control page


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