155 citations · 291 across the 3 of their papers we have counts for
6 papers · 1 filter
Correlations in local measurements on a quantum state, and complementarity as an explanation of nonclassicality
Shengjun Wu, Uffe V. Poulsen, Klaus Mølmer
We consider the classical correlations that two observers can extract by measurements on a bipartite quantum state, and we discuss how they are related to the quantum mutual inform…
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…
Deterministic and Unambiguous Dense Coding
Shengjun Wu, Scott M. Cohen, Yuqing Sun +1
Optimal dense coding using a partially-entangled pure state of Schmidt rank and a noiseless quantum channel of dimension is studied both in the deterministic case wher…
Unambiguous unitary quantum channels
Shengjun Wu, Xuemei Chen
Unambiguous unitary maps and unambiguous unitary quantum channels are introduced and some of their properties are derived. These properties ensure certain simple form for the measu…
Atemporal diagrams for quantum circuits
Robert B. Griffiths, Shengjun Wu, Li Yu +1
A system of diagrams is introduced that allows the representation of various elements of a quantum circuit, including measurements, in a form which makes no reference to time (henc…