Efficient and robust initialization of a qubit register with fermionic atoms

Year: 2004

Authors: Viverit L., Menotti C., Calarco T., Smerzi A.

Autors Affiliation: Univ Trent, INFM, CRS BEC, I-38050 Povo, Italy; Univ Trent, Dipartimento Fis, I-38050 Povo, Italy; Univ Milan, Dipartimento Fis, I-20122 Milan, Italy; European Ctr Theoret Studies Nucl Phys & Related, I-38050 Trento, Italy; Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.

Abstract: We show that fermionic atoms have crucial advantages over bosonic atoms in terms of loading in optical lattices for use as a possible quantum computation device. After analyzing the change in the level structure of a nonuniform confining potential as a periodic potential is superimposed to it, we show how this structure combined with the Pauli principle and fermion degeneracy can be exploited to create unit occupancy of the lattice sites with very high efficiency.

Journal/Review: PHYSICAL REVIEW LETTERS

Volume: 93 (11)      Pages from: 110401-1  to: 110401-4

More Information: We acknowledge useful discussions with H. Ott, and Pitaevskii, S. Stringari, and P. Zoller. This work has been supported by the CRS-BEC-INFM and by the European Commission under Contracts No. IST-2001-38863 (ACQP) and No. HPRN-CT-2000-00121 (QUEST), cofinanced by MIUR.
KeyWords: Gas; Gates
DOI: 10.1103/PhysRevLett.93.110401

Citations: 37
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