File(s) under permanent embargo
Reason: This item is currently closed access.
The influence of dissipation in a 1D quantum metamaterial
journal contribution
posted on 2013-08-08, 07:19 authored by Richard D. Wilson, Mark EverittMark Everitt, Sergey SavelievSergey Saveliev, Alexandre ZagoskinAlexandre ZagoskinQuantum metamaterials consist of quantum coherent structures made up of artificial atoms connected by a transmission medium. In this work we investigate the effects of decoherence in both the transmission medium and the artificial atom using a fully quantum mechanical model. We consider a prototypical solid state 1D quantum metamaterial, i.e. a superconducting flux qubit coupled to a transmission line section on resonance. An initially excited qubit is found to effectively pump a propagating coherent pulse and increase the average output power of the transmission line. Evidence of entanglement between the qubit and the transmission line with a propagating coherent pulse is also demonstrated. This signature behaviour is found to still be evident when a level of decoherence in line with that found in typical experiments is introduced into the transmission line section as well as the qubit. Increasing levels of decoherence, particularly in the qubit, are shown to be dangerous as they destroy the quantum correlations between the qubit and the propagating field.
History
School
- Science
Department
- Physics
Citation
WILSON, R.D. ... et al, 2013. The influence of dissipation in a 1D quantum metamaterial. Superconductor Science and Technology, 26 (084005), 8pp.Publisher
© IOP PublishingVersion
- VoR (Version of Record)
Publication date
2013Notes
This article is closed access.ISSN
0953-2048eISSN
1361-6668Publisher version
Language
- en