@inproceedings{56c99439288940eca2b608c56fec788f,
title = "Excitation and Entanglement Transfer Versus Spectral Gap",
abstract = "Condensed matter systems have recently been proposed as quantum channels for short distance communication. One characteristic of these systems is whether they feature a spectral gap between their ground and excited states. In this paper we study the transfer of excitations and entanglement between two ancillas, which are weakly coupled to a one dimensional chain at different sites. We find that the transfer is almost perfect but slow for large spectral gaps and fast but rather inefficient for small gaps.",
keywords = "Quantum phase transitions, State transfer",
author = "Hartmann, {Michael J.} and Reuter, {Moritz E.} and Plenio, {Martin B.}",
year = "2006",
month = nov,
day = "15",
doi = "10.1063/1.2400886",
language = "English",
isbn = "9780735403628",
series = "AIP Conference Proceedings",
publisher = "AIP Publishing",
number = "1",
pages = "143--155",
editor = "Debabrata Goswami",
booktitle = "Quantum Computing",
address = "United States",
note = "1st International Conference on Quantum Computing: Back Action ; Conference date: 06-03-2006 Through 12-03-2006",
}