Dresden 2011 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 33: Quantum Information: Quantum Communication 2
Q 33.5: Talk
Wednesday, March 16, 2011, 15:30–15:45, SCH A118
Gaussian Errors and Gaussian Quantum Error Correction — •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
In the context of optical Quantum Information Processing schemes, Gaussian operations are those most easily implemented in the laboratory. However, it has been recently proved that these operations are of no use in protecting Gaussian states from the ubiquitous class of Gaussian errors [1]. In this talk, we report on ongoing efforts towards understanding and characterizing these errors and their effect on continuous-variable entanglement resources [2]. We investigate the potential implementation of correction strategies within the Gaussian regime against errors of Gaussian character acting on quantum states of non-Gaussian nature [3], and also as a countermeasure to stochastic, non-Gaussian error models [4].
[1] J. Niset et al., Phys. Rev. Lett. 102, 120501 (2009)
[2] R. Wickert et al., Phys. Rev. A 81, 062344 (2010)
[3] R. Wickert and P. van Loock, in preparation
[4] P. van Loock, J. Mod. Optics 57, 19 (2010)