49 citations · 164 across the 11 of their papers we have counts for
11 papers
One pure steered state implies Einstein-Podolsky-Rosen steering for two-qubit entangled states
Qiu-Cheng Song, Joonwoo Bae
In this work, we show that a two-qubit entangled state admitting at least one pure steered state is Einstein-Podolsky-Rosen (EPR) steerable from Alice to Bob. Pure steered states s…
Shareability of steering in 2-producible states
Qiu-Cheng Song, Travis J. Baker, Howard M. Wiseman
Quantum steering is the phenomenon whereby one party (Alice) proves entanglement by "steering'' the system of another party (Bob) into distinct ensembles of states, by performing d…
Scalable multiparty steering based on a single pair of entangled qubits
Alex Pepper, Travis. J. Baker, Yuanlong Wang +8
The distribution and verification of quantum nonlocality across a network of users is essential for future quantum information science and technology applications. However, beyond…
On the power of one pure steered state for EPR-steering with a pair of qubits
Qiu-Cheng Song, Travis J. Baker, Howard M. Wiseman
As originally introduced, the EPR phenomenon was the ability of one party (Alice) to steer, by her choice between two measurement settings, the quantum system of another party (Bob…
Experimental investigation of the uncertainty relations with coherent light
Hui Wang, Jun-Li Li, Shuang Wang +2
Taking advantage of coherent light beams, we experimentally investigate the variancebased uncertainty relations and the optimal majorization uncertainty relation for the two-dimens…
Tight -observable uncertainty relations and their experimental demonstrations
Zhi-Xin Chen, Hui Wang, Jun-Li Li +2
The uncertainty relation, as one of the fundamental principles of quantum physics, captures the incompatibility of noncommuting observables in the preparation of quantum states. In…
Experimental investigation of multi-observable uncertainty relations
Zhi-Xin Chen, Jun-Li Li, Qiu-Cheng Song +3
The uncertainty relation is a distinguishing feature of quantum theory, characterizing the incompatibility of noncommuting observables in the preparation of quantum states. Recentl…
A Stronger Multi-observable Uncertainty Relation
Qiu-Cheng Song, Jun-Li Li, Guang-Xiong Peng +1
Uncertainty relation lies at the heart of quantum mechanics, characterizing the incompatibility of non-commuting observables in the preparation of quantum states. An important ques…
Uncertainty equalities and uncertainty relation in weak measurement
Qiu-Cheng Song, Cong-Feng Qiao
Uncertainty principle is one of the fundamental principles of quantum mechanics. In this work, we derive two uncertainty equalities, which hold for all pairs of incompatible observ…
Stronger Schrödinger-like Uncertainty Relations
Qiu-Cheng Song, Cong-Feng Qiao
Uncertainty relation is one of the fundamental building blocks of quantum theory. Nevertheless, the traditional uncertainty relations do not fully capture the concept of incompatib…
Synchronous concentration and purification schemes of arbitrary unknown hyperentangled mixed states
Kun Du, Qiu-Cheng Song, Cong-Feng Qiao
We present two efficient schemes which can simultaneously accomplish hyperentanglement concentration and purification for two-photon four-qubit systems in an unknown partially hype…