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Continuous variable key distribution: beating the 3 dB loss limit

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4 Author(s)
Silberhorn, C. ; Phys. Inst., Erlangen-Nurnberg Univ., Erlangen, Germany ; Lutkenhaus, N. ; Ralph, T.C. ; Leuchs, G.

It was believed until recently that quantum key distribution with continuous variables would be restricted to losses below 3 dB due to the beam splitting attack. We show that post-selection allows to overcome this limitation.

Published in:

Quantum Electronics Conference, 2003. EQEC '03. European

Date of Conference:

22-27 June 2003