300 citations · 1.9k across the 76 of their papers we have counts for
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Complementarity of information sent via different bases
Shengjun Wu, Sixia Yu, Klaus Mølmer
We discuss quantitatively the complementarity of information transmitted by a quantum system prepared in a basis state in one out of several different mutually unbiased bases (MUBs…
Entropic uncertainty relation for mutually unbiased bases
Shengjun Wu, Sixia Yu, Klaus Mølmer
We derive new inequalities for the probabilities of projective measurements in mutually unbiased bases of a qudit system. These inequalities lead to wider ranges of validity and ti…
Joint measurement of two unsharp observables of a qubit
Sixia Yu, Naile Liu, Li Li +1
We present a single inequality as the necessary and sufficient condition for two unsharp observables of a two-level system to be jointly measurable in a single apparatus and constr…
Quantum Error-Correcting Codes with Preexisting Protected Qubits
Ying Dong, Xiuhao Deng, Mingming Jiang +2
We provide a systematic way of constructing entanglement-assisted quantum error-correcting codes via graph states in the scenario of preexisting perfectly protected qubits. It turn…
Graphical Nonbinary Quantum Error-Correcting Codes
Dan Hu, Weidong Tang, Meisheng Zhao +3
In this paper, based on the nonbinary graph state, we present a systematic way of constructing good non-binary quantum codes, both additive and nonadditive, for systems with intege…