265 citations · 2.1k across the 75 of their papers we have counts for
7 papers · 1 filter
Heat transport in an open transverse-field Ising chain
Ke-Wei Sun, Chen Wang, Qing-Hu Chen
The heat conduction in an open transverse-field Ising chain is studied by using quantization in the Fock space of operators in the weak coupling regimes, i.e. the coupling is much…
Solutions to the Jaynes-Cummings model without the rotating-wave approximation
Qing-Hu Chen, Tao Liu, Yu-Yu Zhang +1
By using extended bosonic coherent states, the solution to the Jaynes-Cummings model without the rotating-wave approximation can be mapped to that of a polynomial equation with a s…
Worm-type Monte Carlo simulation of the Ashkin-Teller model on the triangular lattice
Jian-Ping Lv, Youjin Deng, Qing-Hu Chen
We investigate the symmetric Ashkin-Teller (AT) model on the triangular lattice in the antiferromagnetic two-spin coupling region (). In the limit, we…
Theory of Spectrum in Qubit-Oscillator Systems in the Ultrastrong Coupling Regime
Qing-Hu Chen, Lei Li, Tao Liu +1
Recent measurement on an LC resonator magnetically coupled to a superconducting qubit[arXiv:1005.1559] shows that the system operates in the ultra-strong coupling regime and crosse…
Entanglement dynamics of two independent Jaynes-Cummings atoms without rotating-wave approximation
Qing-Hu Chen, Tao Liu, Yuan Yang +1
Entanglement evolution of two independent Jaynes-Cummings atoms without rotating-wave approximation (RWA) is studied by an numerically exact approach. The previous results in the R…
Quantum phase transitions in coupled two-level atoms in a single-mode cavity
Qing-Hu Chen, Tao Liu, Yu-Yu Zhang +1
The dipole-coupled two-level atoms(qubits) in a single-mode resonant cavity is studied by extended bosonic coherent states. The numerically exact solution is presented. For finite…