179 citations · 486 across the 12 of their papers we have counts for
9 papers · 1 filter
Quantum-state engineering in cavity magnomechanics formed by two-dimensional magnetic materials
Chun-Jie Yang, Qingjun Tong, Jun-Hong An
Cavity magnomechanics has become an ideal platform to explore macroscopic quantum effects. Bringing together magnons, phonons, and photons in a system, it opens many opportunities…
Simulating Zeno physics by quantum quench with superconducting circuits
Qing-Jun Tong, Jun-Hong An, L. C. Kwek +2
Studying out-of-equilibrium physics in quantum systems under quantum quench is of vast experimental and theoretical interests. Using periodic quantum quenches, we present an experi…
Anomalous decoherence in a dissipative two-level system
Hai-Bin Liu, Jun-Hong An, Chong Chen +3
We study systematically the non-Markovian decoherence dynamics of a dissipative two-level system, i.e., the so-called spin-boson model. It is interesting to find that the decoheren…
Quantum phase transition in the delocalized regime of the spin-boson model
Qing-Jun Tong, Jun-Hong An, Hong-Gang Luo +1
The existence of the delocalized-localized quantum phase transition (QPT) in the ohmic spin-boson model has been commonly recognized. While the physics in the localized regime is r…
Decoherence dynamics of open qubit systems
Qing-Jun Tong
The thesis is contributed to the study of the decoherence dynamics of dissipative qubit systems. We reveal the profound impact of the formation of a bound state between the qubit a…
Entanglement distribution over the subsystems and its invariance
Qing-Jun Tong, Jun-Hong An, Hong-Gang Luo +1
We study the entanglement dynamics of two qubits, each of which is embedded into its local amplitude-damping reservoir, and the entanglement distribution among all the bipartite su…
Non-Markovian effect on the geometric phase of a dissipative qubit
Juan-Juan Chen, Jun-Hong An, Qing-Jun Tong +2
We study the geometric phase of a two-level atom coupled to an environment with Lorentzian spectral density. The non-Markovian effect on the geometric phase is explored analyticall…
Mechanism of entanglement preservation
Qing-Jun Tong, Jun-Hong An, Hong-Gang Luo +1
We study the entanglement preservation of two qubits locally interacting with their reservoirs. We show that the existence of a bound state of the qubit and its reservoir and the n…
Decoherence suppression of a dissipative qubit by the non-Markovian effect
Qing-Jun Tong, Jun-Hong An, Hong-Gang Luo +1
We evaluate exactly the non-Markovian effect on the decoherence dynamics of a qubit interacting with a dissipative vacuum reservoir and find that the coherence of the qubit can be…