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Title: Simulations of magnetic field gradients due to micro-magnets on a triple quantum dot circuit

To quantify the effects of local magnetic fields on triple quantum dots, the Heisenberg Hamiltonian has been diagonalized for three electrons coupled via the exchange interaction. In particular, we have investigated different geometries of micro-magnets located on top of the triple dot in order to optimize the field gradient characteristics. In this paper, we focus on two geometries which are candidates for an addressable EDSR triple quantum dot device.
Authors:
 [1] ;  [2] ;  [3] ; ;  [3] ;  [4] ;  [2] ;  [1]
  1. National Research Council of Canada, Ottawa, On., Canada, K1A-0R6 and Département de physique, Université de Sherbrooke, Sherbrooke, Qc. J1K-2R1 (Canada)
  2. Département de physique, Université de Sherbrooke, Sherbrooke, Qc. J1K-2R1 (Canada)
  3. National Research Council of Canada, Ottawa, On. K1A-0R6 (Canada)
  4. National Research Council of Canada, Ottawa, On.K1A-0R6 (Canada)
Publication Date:
OSTI Identifier:
22261938
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1566; Journal Issue: 1; Conference: ICPS 2012: 31. international conference on the physics of semiconductors, Zurich (Switzerland), 29 Jul - 3 Aug 2012; Other Information: (c) 2013 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ELECTRONS; EXCHANGE INTERACTIONS; HAMILTONIANS; MAGNETIC FIELDS; MAGNETS; QUANTUM DOTS; SIMULATION