289 citations · 2.2k across the 78 of their papers we have counts for
27 papers · 1 filter
Harvesting entanglement from the Lorentz-violating quantum field vacuum in a dipolar Bose-Einstein condensate
Zehua Tian, Weiping Yao, Xiaobao Liu +3
We theoretically propose an experimentally viable scheme to explore the transfer of nonclassical correlations from a dipolar Bose-Einstein condensate (BEC) to a pair of impurities…
Scrambling-Enhanced Quantum Battery Charging in Black Hole Analogues
Zhilong Liu, Ying Li, Zehua Tian +1
Black holes constitute nature's fastest quantum information scramblers, a phenomenon captured by gravitational analogue systems such as position-dependent XY spin chains. In these…
High-order topological pumping on a superconducting quantum processor
Cheng-Lin Deng, Yu Liu, Yu-Ran Zhang +21
High-order topological phases of matter refer to the systems of -dimensional bulk with the topology of -th order, exhibiting -dimensional boundary modes and can be cha…
Probing spin hydrodynamics on a superconducting quantum simulator
Yun-Hao Shi, Zheng-Hang Sun, Yong-Yi Wang +20
Characterizing the nature of hydrodynamical transport properties in quantum dynamics provides valuable insights into the fundamental understanding of exotic non-equilibrium phases…
Quantum Signatures of Chaos in Anisotropic Quantum Rabi Model
Shangyun Wang, Songbai Chen, Jiliang Jing +2
Quantum chaos is an intriguing topic and has attracted a great deal of interests in quantum mechanics and black hole physics. Recently, the exponential growth of out-of-time-ordere…
Quantum speedup dynamics process in Schwarzschild space-time
Kai Xu, Han-Jie Zhu, Guo-Feng Zhang +2
Quantum speed limit time (QSLT) can be used to characterize the intrinsic minimal time interval for a quantum system evolving from an initial state to a target state. We investigat…
Synchronization and estimation of gravity-induced time difference for quantum clocks
Jieci Wang, Tonghua Liu, Jiliang Jing +1
It has recently been reported [\textit{PNAS} \textbf{114}, 2303 (2017)] that, under an operational definition of time, quantum clocks would get entangled through gravitational effe…
Satellite-based quantum steering under the influence of spacetime curvature of the Earth
Tonghua Liu, Jiliang Jing, Jieci Wang
Spacetime curvature of the Earth deforms wavepackets of photons sent from the Earth to satellites, thus influencing the quantum state of light. We show that Gaussian steering of ph…
Synchronize accelerated clock in a multipartite relativistic quantum system
Li Zhang, Jiliang Jing, Heng Fan +1
We perform a protocol for multipartite quantum clock synchronization under the influence of Unruh thermal noise. The clocks consisting of Unruh-DeWitt detectors when one of detecto…
Monogamy of Einstein-Podolsky-Rosen steering in the background of an asymptotically flat black hole
Jieci Wang, Jiliang Jing, Heng Fan
We study the behavior of monogamy deficit and monogamy asymmetry for Einstein-Podolsky-Rosen steering of Gaussian states under the influence of the Hawking effect. We demonstrate t…
Quantum coherence and geometric quantum discord
Ming-Liang Hu, Xueyuan Hu, Jie-Ci Wang +3
Quantum coherence and quantum correlations are of fundamental and practical significance for the development of quantum mechanics.They are also cornerstones of quantum computation…
Retrieving the lost fermionic entanglement by partial measurement in noninertial frames
Xing Xiao, Ying-Mao Xie, Yao Yao +2
The initial entanglement shared between inertial and accelerated observers degrades due to the influence of the Unruh effect. Here, we show that the Unruh effect can be completely…
Inhibiting decoherence of two-level atom in thermal bath by presence of boundaries
Xiaobao Liu, Zehua Tian, Jieci Wang +1
We study, in the paradigm of open quantum systems, the dynamics of quantum coherence of a static polarizable two-level atom which is coupled with a thermal bath of fluctuating elec…
Detecting the Curvature of de Sitter Universe with Two Entangled Atoms
Zehua Tian, Jieci Wang, Jiliang Jing +1
Casimir-Polder interaction arises from the vacuum fluctuations of quantum field that depend on spacetime curvature and thus is spacetime-dependent. Here we show how to use the reso…
Entanglement Enhanced Thermometry in the Detection of the Unruh Effect
Zehua Tian, Jieci Wang, Jiliang Jing +1
We show how the use of entanglement can enhance the precision of the detection of the Unruh effect with an accelerated probe. We use the Unruh-DeWitt model of a two-level atom inte…
Irreversible degradation of quantum coherence under relativistic motion
Jieci Wang, Zehua Tian, Jiliang Jing +1
We study the dynamics of quantum coherence under Unruh thermal noise and seek under which condition the coherence can be frozen in a relativistic setting. We find that the frozen c…
Gaussian quantum steering and its asymmetry in curved spacetime
Jieci Wang, Haixin Cao, Jiliang Jing +1
We study Gaussian quantum steering and its asymmetry in the background of a Schwarzschild black hole. We present a Gaussian channel description of quantum state evolution under the…
Protecting quantum coherence of two-level atoms from vacuum fluctuations of electromagnetic field
Xiaobao Liu, Zehua Tian, Jieci Wang +1
In the framework of open quantum systems, we study the dynamics of a static polarizable two-level atom interacting with a bath of fluctuating vacuum electromagnetic field and explo…
Influence of relativistic effects on satellite-based clock synchronization
Jieci Wang, Zehua Tian, Jiliang Jing +1
Clock synchronization between the ground and satellites is a fundamental issue in future quantum telecommunication, navigation, and global positioning systems. Here, we propose a s…
Quantum discord and measurement-induced disturbance in the background of dilaton black holes
Jieci Wang, Jiliang Jing, Heng Fan
We study the dynamics of classical correlation, quantum discord and measurement-induced disturbance of Dirac fields in the background of a dilaton black hole. We present an alterna…
Quantum metrology and estimation of Unruh effect
Jieci Wang, Zehua Tian, Jiliang Jing +1
We study the quantum metrology for a pair of entangled Unruh-Dewitt detectors when one of them is accelerated and coupled to a massless scalar field. Comparing with previous scheme…
Parameter estimation for an expanding universe
Jieci Wang, Zehua Tian, Jiliang Jing +1
We study the parameter estimation for excitations of Dirac fields in the expanding Robertson-Walker universe. We employ quantum metrology techniques to demonstrate the possibility…
System-environment dynamics of X-type states in noninertial frames
Jieci Wang, Jiliang Jing
The system-environment dynamics of noninertial systems is investigated. It is shown that for the amplitude damping channel: (i) the biggest difference between the decoherence effec…
Multipartite entanglement of fermionic systems in noninertial frames
Jieci Wang, Jiliang Jing
The bipartite and tripartite entanglement of a 3-qubit fermionic system when one or two subsystems accelerated are investigated. It is shown that all the one-tangles decrease as th…