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10 papers · 2 filters
Quench dynamics of topological quantum phase transition in Wen-plaquette model
Long Zhang, Su-Peng Kou, Youjin Deng
We study the quench dynamics of the topological quantum phase transition in the two-dimensional transverse Wen-plaquette model, which has a phase transition from a Z2 topologically…
Faithful entanglement sharing for quantum communication against collective noise
Hui-Chong Niu, Bao-Cang Ren, Tie-Jun Wang +2
We present an economical setup for faithful entanglement sharing against collective noise. It is composed of polarizing beam splitters, half wave plates, polarization independent w…
One-step deterministic polarization entanglement purification using spatial entanglement
Yu-Bo Sheng, Fu-Guo Deng
We present a one-step deterministic entanglement purification protocol with linear optics and postselection. Compared with the Simon-Pan protocol (Phys. Rev. Lett. 89, 257901 (2002…
Residual effect on the robustness of multiqubit entanglement
Bao-Kui Zhao, Fu-Guo Deng
We investigate the relation between the entanglement and the robustness of a multipartite system to a depolarization noise. We find that the robustness of a two-qubit system in an…
Quantifying quantum discord and entanglement of formation via unified purifications
Li-Xiang Cen, Xin-Qi Li, JiuShu Shao +1
We propose a scheme to evaluate the amount of quantum discord and entanglement of formation for mixed states, and reveal their ordering relation via an intrinsic relationship betwe…
Foldy-Wouthuysen transformation for a Dirac-Pauli dyon and the Thomas-Bargmann-Michel-Telegdi equation
Tsung-Wei Chen, Dah-Wei Chiou
The classical dynamics for a charged point particle with intrinsic spin is governed by a relativistic Hamiltonian for the orbital motion and by the Thomas-Bargmann-Michel-Telegdi e…