Stuttgart 2012 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 54: Poster 3
Q 54.3: Poster
Thursday, March 15, 2012, 16:30–19:00, Poster.I+II
Quantitative Benchmarking of Quantum Error Correction Codes for Amplitude Damping — •Ricardo Wickert1,2 and Peter van Loock1,2 — 1Optical Quantum Information Theory Group, Max Planck Institute for the Science of Light, Erlangen, Germany — 2Institute of Theoretical Physics I, Universität Erlangen-Nürnberg, Erlangen, Germany
The ability to transmit quantum states of light in a coherent and error-free fashion is a fundamental requirement for the successful implementation of quantum communication protocols. When comparing error-correction strategies, the importance of quantitative benchmarks becomes apparent: various measures can be employed which can, under certain circumstances, give rise to different relative orderings between codes. Here we discuss the connection of entanglement-based quantities with worst-case and codeword fidelities, with a particular attention to codes designed to protect both discrete-variable (single-photon states) and continuous-variable (coherent-state superpositions) quantum information carriers against amplitude damping (photon-loss) errors.