Fault-tolerant dissipative preparation of atomic quantum registers with fermions

A. Griessner, A. J. Daley, D. Jaksch, and P. Zoller
Phys. Rev. A 72, 032332 – Published 28 September 2005

Abstract

We propose a fault-tolerant loading scheme to produce an array of fermions in an optical lattice of the high fidelity required for applications in quantum-information processing and the modeling of strongly correlated systems. A cold reservoir of fermions plays a dual role as a source of atoms to be loaded into the lattice via a Raman process and as a heat bath for sympathetic cooling of lattice atoms. Atoms are initially transferred into an excited motional state in each lattice site and then decay to the motional ground state, creating particle-hole pairs in the reservoir. Atoms transferred into the ground motional level are no longer coupled back to the reservoir, and doubly occupied sites in the motional ground state are prevented by Pauli blocking. This scheme has strong conceptual connections with optical pumping and can be extended to load high-fidelity patterns of atoms.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 25 February 2005

DOI:https://doi.org/10.1103/PhysRevA.72.032332

©2005 American Physical Society

Authors & Affiliations

A. Griessner1,2,3, A. J. Daley1,2, D. Jaksch3, and P. Zoller1,2

  • 1Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, A-6020 Innsbruck, Austria
  • 2Institute for Theoretical Physics, University of Innsbruck, A-6020 Innsbruck, Austria
  • 3Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 72, Iss. 3 — September 2005

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review A

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×