Single Atom Transistor in a 1D Optical Lattice

2004/06/03 by A. Micheli, Andrew J. Daley, A. J. Daley +3 · 6 citations
Computer Science · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Quantum Information and Cryptography #Quantum optics and atomic interactions #cond-mat.soft #quant-ph

paper · pdf · doi:10.1103/physrevlett.93.140408

published as Phys. Rev. Lett. 93, 140408 (2004) · RevTeX 4, 5 Figures, 4 Pages

arxiv created 2004/06/03 · openalex publication_date 2004/10/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We propose a scheme utilizing a quantum interference phenomenon to switch the transport of atoms in a 1D optical lattice through a site containing an impurity atom. The impurity represents a qubit which in one spin state is transparent to the probe atoms, but in the other acts as a single atom mirror. This allows a single-shot quantum nondemolition measurement of the qubit spin.

Citations

• Tuning the Scattering Length with an Optically Induced Feshbach Resonance

Cited by

• Numerical analysis of coherent many-body currents in a single atom transistor
• Ground-state reference systems for expanding correlated fermions in one dimension
• Control of atomic currents using a quantum stirring device
• Self-trapping of Bose-Einstein condensates expanding into shallow optical lattices
• New trends in density matrix renormalization
• The cold atom Hubbard toolbox