804 citations
- Institute of High Energy PhysicsCN16 papers
- Chinese Academy of SciencesCN15 papers
- Institute of Theoretical PhysicsCN12 papers
- Peking UniversityCN8 papers
- Fudan UniversityCN7 papers
- Central China Normal UniversityCN6 papers
- Nankai UniversityCN6 papers
- Hunan Normal UniversityCN5 papers
- University of Science and Technology of ChinaCN5 papers
- Guangxi Normal UniversityCN4 papers
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- Henan Normal UniversityCN4 papers
6 papers · 1 filter
Entanglement Entropy: Helicity versus Spin
Song He, Shuxin Shao, Hongbao Zhang
For a massive spin 1/2 field, we present the reduced spin and helicity density matrix, respectively, for the same pure one particle state. Their relation has also been developed. F…
Quantum Helicity Entropy of Moving Bodies
Song He, Shuxin Shao, Hongbao Zhang
Lorentz transformation of the reduced helicity density matrix for a massive spin 1/2 particle is investigated in the framework of relativistic quantum information theory for the fi…
Thermal entanglement in a two-qubit Heisenberg XXZ spin chain under an inhomogeneous magnetic field
Guo-Feng Zhang
The thermal entanglement in a two-qubit Heisenberg \emph{XXZ} spin chain is investigated under an inhomogeneous magnetic field \emph{b}. We show that the ground-state entanglement…
On the Quantum Mechanics for One Photon
Yapeng Hu, Weigang Qiu, Hongbao Zhang
This paper revisits the quantum mechanics for one photon from the modern viewpoint and by the geometrical method. Especially, besides the ordinary (rectangular) momentum representa…
Quantum secret sharing between multi-party and multi-party without entanglement
Feng-Li Yan, Ting Gao
We propose a quantum secret sharing protocol between multi-party ( members in group 1) and multi-party ( members in group 2) using a sequence of single photons. These single…
Vacuum fluctuations and Brownian motion of a charged test particle near a reflecting boundary
Hongwei Yu, L. H. Ford
We study the Brownian motion of a charged test particle coupled to electromagnetic vacuum fluctuations near a perfectly reflecting plane boundary. The presence of the boundary modi…