45 citations · 69 across the 8 of their papers we have counts for
4 papers · 1 filter
Quantum entropy-typical subspace and universal data compression
Jingliang Gao, Yanbo Yang
The quantum entropy-typical subspace theory is specified. It is shown that any mixed state with von Neumann entropy less than h can be preserved approximately by the entropy-typica…
Estimating the eigenstates of an unknown density operator without damaging it
Jingliang Gao, Feng Cai
Given n qubits prepared according to the same unknown density operator, we propose a nondestructive measuring method which approximately yields the eigenstates. It is shown that, f…
Efficient quantum key distribution scheme with pre-announcing the basis
Jingliang Gao, Changhua Zhu, Heling Xiao
We devise a new quantum key distribution scheme that is more efficient than the BB84 protocol. By pre-announcing basis, Alice and Bob are more likely to use the same basis to prepa…
Quantum union bounds for sequential projective measurements
Jingliang Gao
We present two new quantum union bounds for sequential projective measurements. These bounds estimate the disturbance accumulation and probability of outcomes when the measurements…