70 citations · 100 across the 5 of their papers we have counts for
5 papers
Collective advantage from a minimal record in a quantum information engine
Kangqiao Liu, Jie Gu, Deyou Chen
For a single particle, a quantum information engine can turn measurement fluctuations into transport by raising a barrier behind the particle each time its position is measured. Wh…
Hamiltonian Thresholds for Objective Records
Jie Gu
Classical objectivity requires an environment to witness a pointer value, not merely to decohere it. We derive microscopic Hamiltonian laws for this distinction. Exact QND product…
Finite-frequency fluctuation-response bounds for open quantum systems
Jie Gu, Kangqiao Liu
We derive a finite-frequency fluctuation-response inequality for Markovian open quantum systems in an input-output setting. For any downstream measurement of the emitted field, the…
Experimental composable security decoy-state quantum key distribution using time-phase encoding
Hua-Lei Yin, Peng Liu, Wei-Wei Dai +5
Quantum key distribution (QKD) promises provably secure communications. In order to improve the secret key rate, combining a biased basis choice with the decoy-state method is prop…
Tight security bounds for decoy-state quantum key distribution
Hua-Lei Yin, Min-Gang Zhou, Jie Gu +3
The BB84 quantum key distribution (QKD) combined with decoy-state method is currently the most practical protocol, which has been proved secure against general attacks in the finit…