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Proceedings Paper

Z_2 quantum memory implemented on circuit quantum electrodynamics
Author(s): T. H. Kyaw; S. Felicetti; G. Romero; E. Solano; L. C. Kwek
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Paper Abstract

We present a technique to store and retrieve single- and two-qubit states into a parity-protected quantum memory implemented on a state-of-the-art superconducting circuit architecture. Our proposal relies upon a specific superconducting circuit design that permits a tunable qubit-resonator coupling strength. The latter allows us to adiabatically tune from the weak coupling to the ultrastrong coupling regime of light-matter interaction, where a controllable and well-protected effective two-level system is defined due to the Z2 parity symmetry. Storage and retrieval time of the qubit are in a few nanoseconds timescale, which is far below the effective qubit coherence time.

Paper Details

Date Published: 8 October 2014
PDF: 5 pages
Proc. SPIE 9225, Quantum Communications and Quantum Imaging XII, 92250B (8 October 2014); doi: 10.1117/12.2062893
Show Author Affiliations
T. H. Kyaw, National Univ. of Singapore (Singapore)
S. Felicetti, Univ. del País Vasco (Spain)
G. Romero, Univ. del País Vasco (Spain)
E. Solano, Univ. del País Vasco (Spain)
IKERBASQUE, Basque Foundation for Science (Spain)
L. C. Kwek, National Univ. of Singapore (Singapore)
Nanyang Technological Univ. (Singapore)


Published in SPIE Proceedings Vol. 9225:
Quantum Communications and Quantum Imaging XII
Ronald E. Meyers; Yanhua Shih; Keith S. Deacon, Editor(s)

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