66 citations · 218 across the 11 of their papers we have counts for
9 papers · 1 filter
Ubiquity of zeros of Loschmidt amplitude for mixed states in different physical processes and their implications
Xu-Yang Hou, Qu-Cheng Gao, Hao Guo +3
The Loschmidt amplitude of the purified states of mixed-state density matrices is shown to have zeros when the system undergoes a quasistatic, quench, or Uhlmann process. While the…
Generation of quantum entangled states of multiple groups of qubits distributed in multiple cavities
Tong Liu, Qi-Ping Su, Yu Zhang +2
Provided that cavities are initially in a Greenberger-Horne-Zeilinger (GHZ) entangled state, we show that GHZ states of N-group qubits distributed in N cavities can be created via…
Transferring entangled states of photonic cat-state qubits in circuit QED
Tong Liu, Zhen-Fei Zheng, Yu Zhang +2
We propose a method for transferring quantum entangled states of two photonic cat-state qubits (cqubits) from two microwave cavities to the other two microwave cavities. This propo…
Quantum thermal transistor based on the qubit-qutrit coupling
Bao-qing Guo, Tong Liu, Chang-shui Yu
A quantum thermal transistor is designed by the strong coupling between one qubit and one qutrit which are in contact with three heat baths with different temperatures. The thermal…
Multifunctional quantum thermal device utilizing three qubits
Bao-qing Guo, Tong Liu, Chang-shui Yu
Quantum thermal devices which can manage heat as their electronic analogues for the electronic currents have attracted increasing attention. Here a three-terminal quantum thermal d…
Creation of superposition of arbitrary states encoded in two three-dimensional cavities
Tong Liu, Yang Zhang, Bao-qing Guo +2
The principle of superposition is a key ingredient for quantum mechanics. A recent work [M. Oszmaniec et al., Phys. Rev. Lett. 116, 110403 (2016)] has shown that a quantum adder th…