5 citations · 8 across the 7 of their papers we have counts for
7 papers
Fate and origin of the quantum Otto heat engine based on the dissipative Dicke-Hubbard model
He-Guang Xu, Shujie Cheng
The Dicke-Hubbard model, describing an ensemble of interacting atoms in a cavity, provides a rich platform for exploring collective quantum phenomena. However, its potential for qu…
Exploring Metallic-Insulating Transition and Thermodynamic Applications of Fibonacci Quasicrystals
He-Guang Xu, Shujie Cheng
Extended and critical states are two common phenomena in Fibonacci quasicrystals. In this paper, we first reveal the difference between the extended phase and the critical phase in…
Exploring the role of criticality in the quantum Otto cycle fueled by the anisotropic quantum Rabi-Stark model
He-Guang Xu, Jiasen Jin, Norton G. de Almeida +1
Quantum heat machines, encompassing heat engines, refrigerators, heaters, and accelerators, represent the forefront of quantum thermodynamics, offering a novel paradigm for convert…
Persisting quantum effects in the anisotropic Rabi model at thermal equilibrium
He-Guang Xu, V. Montenegro, Gao Xianlong +2
Quantum correlations and nonclassical states are at the heart of emerging quantum technologies. Efforts to produce long-lived states of such quantum resources are a subject of tire…
Universal quantum Otto heat machine based on the Dicke model
He-Guang Xu, Jiasen Jin, G. D. M. Neto +1
In this paper we study a quantum Otto thermal machine where the working substance is composed of N identical qubits coupled to a single mode of a bosonic field, where the atoms and…
Quantum criticality driven by the cavity coupling in Rabi-dimer model
Shujie Cheng, Heguang Xu, Xueying Liu +1
The superradiant phase transition (SPT) controlled by the interacting strength between the two-level atom and the photons has been a hot topic in the Rabi model and the Rabi-dimer…
Two-photon statistics of nonclassical radiation in the dissipative finite-size Dicke model
Heguang Xu, Chen Wang, Xianlong Gao
The nonclassical feature of photons in the open finite-size Dicke model is investigated via the two-photon correlation function. The quantum dressed master equation combined with t…