@article{
 title = {Exchange gate in solid-state spin-quantum computation: The applicability of the Heisenberg model},
 type = {article},
 year = {2005},
 pages = {32340},
 volume = {71},
 websites = {http://dx.doi.org/10.1103/PhysRevA.71.032340},
 id = {ccc7b866-55c3-38c6-b20b-b63d825b032b},
 created = {2017-12-12T20:22:25.342Z},
 file_attached = {true},
 profile_id = {004c1ae0-7ed4-35f3-b39b-28665b4ab9a2},
 last_modified = {2022-07-05T22:02:00.993Z},
 read = {false},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Scarola2005a},
 source_type = {JOUR},
 private_publication = {false},
 abstract = {Solid-state quantum-computing proposals rely on adiabatic operations of the exchange gate among localized spins in nanostructures. We study corrections to the Heisenberg interaction between lateral semiconductor quantum dots in an external magnetic field. Using exact diagonalization we obtain the regime of validity of the adiabatic approximation. We also find qualitative corrections to the Heisenberg model at high magnetic fields and in looped arrays of spins. Looped geometries of localized spins generate flux-dependent multispin terms which go beyond the basic Heisenberg model.},
 bibtype = {article},
 author = {Scarola, V. W. and Sarma, S. Das},
 doi = {10.1103/PhysRevA.71.032340},
 journal = {Physical Review A},
 number = {3}
}

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