05/03/2010, 15:00 — 16:00 — Room P4.35, Mathematics Building
Tomoyuki Morimae, U Lille
Macroscopic superposition in quantum information processing
Quantum properties of many-body states such as macroscopic superposition and large multipartite entanglement are essential resources for quantum information processing. In this talk, we study when and how macroscopic superposition appears in quantum many-body systems, such as a magnon system, quantum computers, and a quantum memory, and show that the emergence of such macroscopic superposition also causes large multipartite entanglement and low gate fidelity in the one-way quantum computation.
Supported by: Phys-Info (IT), SQIG (IT), CeFEMA and CAMGSD, with funding from FCT, FEDER and EU FP7, specifically through the Doctoral Programme in the Physics and Mathematics of Information (DP-PMI), FCT strategic projects PEst-OE/EEI/LA0008/2013 and UID/EEA/50008/2013, IT project QuSim, project CRUP-CPU CQVibes, the FP7 Coordination Action QUTE-EUROPE (600788), and the FP7 projects Landauer (GA 318287) and PAPETS (323901).
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