1 citations · 1 across the 3 of their papers we have counts for
6 papers
Classical codes violate the conjectured square-root bound for quantum random access codes
Kangqiao Liu
We consider whether every quantum random access code (QRAC) with density-operator encodings and arbitrary decoding measurements obeys the conjectured bound ,…
Chaos bound for spinning particles in Kerr-Newman-AdS black holes
Deyou Chen, Chuang Yang, Kangqiao Liu
In this paper, we employ spinning test particles as probes to investigate the regulatory effects of particle and black hole parameters on the violation of the chaos bound in Kerr-N…
Response kinetic uncertainty relation for Markovian open quantum systems
Kangqiao Liu, Jie Gu
Response uncertainty relations in stochastic thermodynamics extend precision bounds to the sensitivity of observables under external perturbations. Here we derive a quantum respons…
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…
Maxwell's demon for quantum transport
Kangqiao Liu, Masaya Nakagawa, Masahito Ueda
While most of the existing quantum information engines assisted by Maxwell's demon harness thermal fluctuations, those that rectify only quantum fluctuations have recently been con…
Dynamical activity universally bounds precision of response in Markovian nonequilibrium systems
Kangqiao Liu, Jie Gu
The exploration of far-from-equilibrium systems has been at the forefront of nonequilibrium thermodynamics, with a particular focus on understanding the fluctuations and response o…