• Publications
  • Influence
Reveal quantum correlation in complementary bases
TLDR
This work reveals the simultaneous existence of correlation in complementary bases by defining measures based on invariance under a basis change and gives information-theoretical measures that directly reflect the essential feature of quantum correlation.
Measure of genuine multipartite entanglement with computable lower bounds
We introduce an intuitive measure of genuine multipartite entanglement, which is based on the well-known concurrence. We show how lower bounds on this measure can be derived and also meet important
Operational one-to-one mapping between coherence and entanglement measures
We establish a general operational one-to-one mapping between coherence measures and entanglement measures: Any entanglement measure of bipartite pure states is the minimum of a suitable coherence
Improved lower bounds on genuine-multipartite-entanglement concurrence
TLDR
This work defines an observable for GME concurrence and shows that entanglement criteria based on the bounds have a better performance with respect to the known methods.
Estimating entanglement monotones with a generalization of the Wootters formula.
TLDR
It is demonstrated that for certain families of states these results constitute the strongest bipartite entanglement criterion so far; moreover, they allow us to recognize novel families of multiparticle bound entangled states.
Matrix realignment and partial-transpose approach to entangling power of quantum evolutions
Based on the matrix realignment and partial transpose, we develop an approach to the entangling power and operator entanglement of quantum unitary operators. We demonstrate the approach by studying
Geometric interpretation for the A fidelity and its relation with the Bures fidelity
TLDR
A geometric interpretation for the A-fidelity between two states of a qubit system is presented, which leads to an upper bound of the Bures fidelity, which has the same geometric picture to a $N$-state quantum system.
Sharp continuity bounds for entropy and conditional entropy
TLDR
An inequality relating the Renyi entropy difference of two quantum states to their trace norm Distance is derived and is shown to be tight in the sense that equality can be attained for every prescribed value of the trace norm distance.
Experimental Test of Heisenberg's Measurement Uncertainty Relation Based on Statistical Distances.
TLDR
The relation reveals that the worst-case inaccuracy is tightly bounded from below by the incompatibility of target observables, and is verified by the experiment employing joint measurement in which two compatible observables designed to approximate two incompatible observables on one qubit are measured simultaneously.
...
...