852 citations · 6.7k across the 84 of their papers we have counts for
5 papers · 2 filters
Quantum Heat Engines Using Superconducting Quantum Circuits
H. T. Quan, Y. D. Wang, Yu-xi Liu +2
We propose a quantum analog of the internal combustion engine used in most cars. Specifically, we study how to implement the Otto-type quantum heat engine (QHE) with the assistance…
Decay of Loschmidt Echo Enhanced by Quantum Criticality
H. T. Quan, Z. Song, X. F. Liu +2
We study the transition of a quantum system from a pure state to a mixed one, which is induced by the quantum criticality of the surrounding system coupled to it. To chara…
Quantum-Classical Transition of Photon-Carnot Engine Induced by Quantum Decoherence
H. T. Quan, P. Zhang, C. P. Sun
We study the physical implementation of the Photon Carnot engine (PCE) based on the cavity QED system [M. Scully et al, Science, \textbf{299}, 862 (2003)]. Here, we analyze two dec…
Quantum transducers: Integrating Transmission Lines and Nanomechanical Resonators via Charge Qubits
C. P. Sun, L. F. Wei, Yu-xi Liu +1
We propose a mechanism to interface a transmission line resonator (TLR) with a nano-mechanical resonator (NAMR) by commonly coupling them to a charge qubit, a Cooper pair box with…
Characterizing entanglement by momentum-jump in the frustrated Heisenberg ring at quantum phase transition
Xiao-Feng Qian, Tao Shi, Ying Li +2
We study the pairwise concurrences, a measure of entanglement, of the ground states for the frustrated Heisenberg ring to explore the relation between entanglement and quantum phas…