@article {Solenov:2011:1546-1955:481,
title = "Cold Atom Qubits",
journal = "Journal of Computational and Theoretical Nanoscience",
parent_itemid = "infobike://asp/jctn",
publishercode ="asp",
year = "2011",
volume = "8",
number = "3",
publication date ="2011-03-01T00:00:00",
pages = "481-489",
itemtype = "ARTICLE",
issn = "1546-1955",
eissn = "1546-1963",
url = "https://www.ingentaconnect.com/content/asp/jctn/2011/00000008/00000003/art00021",
doi = "doi:10.1166/jctn.2011.1713",
keyword = "QUBITS, COLD ATOMS, JOSEPHSON TUNNELING, BOSE-EINSTEIN CONDENSATE",
author = "Solenov, Dmitry and Mozyrsky, Dmitry",
abstract = "We discuss a laser-trapped cold-atom superfluid qubit system. Each qubit is proposed as a macroscopic two-state system based on a set of Bose-Einstein condensate (BEC) currents circulating in a ring, cut with a Josephson barrier. We review the effective low energy description of a single BEC ring. In particular, it is demonstrated that such system has a set of metastable current states which, for certain range of parameters, form an effective two-state system, or a qubit. We show how this qubit can be initialized and manipulated with currently available laser-trapping techniques. We also discuss mechanisms of coupling several such ring qubits as well as measuring individual qubit-ring systems.",
}