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Double-occupancy errors, adiabaticity, and entanglement of spin qubits in quantum dots

Schliemann, John, Loss, Daniel and MacDonald, A. H. (2001) Double-occupancy errors, adiabaticity, and entanglement of spin qubits in quantum dots. Phys. Rev. B 63, 085311.

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Date of publication of this fulltext: 22 May 2013 13:32

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Other URL: http://link.aps.org/doi/10.1103/PhysRevB.63.085311


Abstract

Quantum gates that temporarily increase singlet-triplet splitting in order to swap electronic spins in coupled quantum dots lead inevitably to a finite double-occupancy probability for both dots. By solving the time-dependent Schrödinger equation for a coupled dot model, we demonstrate that this does not necessarily lead to quantum computation errors. Instead, the coupled dot ground state evolves ...

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Item type:Article
Date:2 February 2001
Institutions:Physics > Institute of Theroretical Physics > Chair Professor Grifoni > Group John Schliemann
Projects:SCHL 539/1-1
Identification Number:
ValueType
10.1103/PhysRevB.63.085311DOI
Dewey Decimal Classification:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:No
Item ID:28251
Owner only: item control page

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