Entanglement of degenerate ground state for spin 1 and 1/2 pair
| dc.creator | Li, You-Quan | |
| dc.creator | Zhu, Guo-Qiang | |
| dc.creator | Zhao, Xue-An | |
| dc.date | 2004-08-25 | |
| dc.date | 2004-09-01 | |
| dc.date.accessioned | 2026-07-07T06:10:43Z | |
| dc.date.available | 2026-07-07T06:10:43Z | |
| dc.description | We study the entanglement feature of the ground state of a system composed of spin 1 and 1/2 parts. The concurrence vector is shown to be consistent with the measurement of von Neumann entropy for such system. In the light of the ground state degeneracy, we suggest a average concurrence to measure the entanglement of Hilbert subspace. The entanglement property of both a general superposition as well as the mixture of the degenerate ground states are discussed by means of average concurrence and the negativity respectively. | |
| dc.description | 5 pages, 4 figures; one figure is replaced and one subsection is revised | |
| dc.identifier | https://arxiv.org/abs/quant-ph/0408155 | |
| dc.identifier | http://arxiv.org/abs/quant-ph/0408155 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/92325 | |
| dc.subject | Quantum Physics | |
| dc.title | Entanglement of degenerate ground state for spin 1 and 1/2 pair | |
| dc.type | text |