60 citations · 118 across the 5 of their papers we have counts for
5 papers
Sustained state-independent quantum contextual correlations from a single ion
F. M. Leupold, M. Malinowski, C. Zhang +4
We use a single trapped-ion qutrit to demonstrate the violation of an input-state-independent non-contextuality inequality using a sequence of randomly chosen quantum non-demolitio…
Discrimination between pure states and mixed states
Chi Zhang, Guoming Wang, Mingsheng Ying
In this paper, we discuss the problem of determining whether a quantum system is in a pure state, or in a mixed state. We apply two strategies to settle this problem: the unambiguo…
Universal programmable devices for unambiguous discrimination
Chi Zhang, Mingsheng Ying
We discuss the problem of designing unambiguous programmable discriminators for any unknown quantum states in an -dimensional Hilbert space. The discriminator is a fixed mea…
Optimal universal programmable detectors for unambiguous discrimination
Chi Zhang, Mingsheng Ying, Bo Qiao
We discuss the problem of designing unambiguous programmable discriminators for any n unknown quantum states in an m-dimensional Hilbert space. The discriminator is a fixed measure…
Unambiguous discrimination of mixed quantum states
Chi Zhang, Yuan Feng, Ming Sheng Ying
In this paper, we consider the problem of unambiguous discrimination between a set of mixed quantum states. We first divide the density matrix of each mixed state into two parts by…