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Six-electron semiconductor double quantum dot qubits

delete2013-11-18
delete28
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E
Erik Nielsen *
E
Edwin Barnes
J
J. P. Kestner
S
S. Das Sarma
DOI:10.1103/PhysRevB.88.195131delete
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Abstract

Abstract

En 中文
We consider a double quantum dot (DQD) qubit which contains six electrons instead of the usual one or two. In this spin qubit, quantum information is encoded in a low-lying singlet-triplet space much as in the case of a two-electron DQD qubit. We find that initialization, manipulation, and readout can be performed similarly to the two-electron case, and that energy gaps remain large enough that these operations can be performed robustly. We consider DQD potentials with parameters chosen to be representative of current experimental capabilities. Results are obtained using two complementary full configuration interaction methods.
Keywords:
MANIPULATION
ALGORITHMS
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Journal

Physical Review B cover
Physical Review B
IF:
3.7
Papers:
15.4W
Citations:
41.0W

Organization

U
united states department of energy (doe)
Scholars:
11.3W
Papers: 9.6W
Citations: 246
S
Sandia National Laboratories
Scholars:
5.4K
Papers: 3.7K
Citations: 6.4K