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Title: Scalable quantum memory in the ultrastrong coupling regime
Authors: Kyaw, T.H 
Felicetti, S
Romero, G
Solano, E
Kwek, L.-C 
Issue Date: 2015
Citation: Kyaw, T.H, Felicetti, S, Romero, G, Solano, E, Kwek, L.-C (2015). Scalable quantum memory in the ultrastrong coupling regime. Scientific Reports 5 : 8621. ScholarBank@NUS Repository.
Abstract: Circuit quantum electrodynamics, consisting of superconducting artificial atoms coupled to on-chip resonators, represents a prime candidate to implement the scalable quantum computing architecture because of the presence of good tunability and controllability. Furthermore, recent advances have pushed the technology towards the ultrastrong coupling regime of light-matter interaction, where the qubit-resonator coupling strength reaches a considerable fraction of the resonator frequency. Here, we propose a qubit-resonator system operating in that regime, as a quantum memory device and study the storage and retrieval of quantum information in and from the Z2 parity-protected quantum memory, within experimentally feasible schemes. We are also convinced that our proposal might pave a way to realize a scalable quantum random-access memory due to its fast storage and readout performances. © 2015, Nature Publishing Group. All rights reserved.
Source Title: Scientific Reports
ISSN: 2045-2322
DOI: 10.1038/srep08621
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