40 citations · 43 across the 4 of their papers we have counts for
Showing 2007 · quant-phShow all
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quant-ph2007
A random-coding based proof for the quantum coding theorem
Rochus Klesse
We present a proof for the quantum channel coding theorem which relies on the fact that a randomly chosen code space typically is highly suitable for quantum error correction. In t…
quant-ph2007★ 2 cited
Decoherence of encoded quantum registers
Stefan Borghoff, Rochus Klesse
In order to eliminate disturbing effects of decoherence, encoding of quantum information in decoherence-free subspaces has been suggested. We analyze the benefits of this concept f…
quant-ph2007★ 40 cited
Approximate quantum error correction, random codes, and quantum channel capacity
Rochus Klesse
We work out a theory of approximate quantum error correction that allows us to derive a general lower bound for the entanglement fidelity of a quantum code. The lower bound is give…