Entanglement monotones and maximally entangled states in multipartite qubit systems
| dc.creator | Osterloh, Andreas | |
| dc.creator | Siewert, Jens | |
| dc.date | 2005-06-09 | |
| dc.date.accessioned | 2026-07-07T06:30:48Z | |
| dc.date.available | 2026-07-07T06:30:48Z | |
| dc.description | We present a method to construct entanglement measures for pure states of multipartite qubit systems. The key element of our approach is an antilinear operator that we call {\em comb} in reference to the {\em hairy-ball theorem}. For qubits (or spin 1/2) the combs are automatically invariant under $SL(2,\CC)$. This implies that the {\em filters} obtained from the combs are entanglement monotones by construction. We give alternative formulae for the concurrence and the 3-tangle as expectation values of certain antilinear operators. As an application we discuss inequivalent types of genuine four-, five- and six-qubit entanglement. | |
| dc.description | 7 pages, revtex4. Talk presented at the Workshop on "Quantum entanglement in physical and information sciences", SNS Pisa, December 14-18, 2004 | |
| dc.identifier | https://arxiv.org/abs/quant-ph/0506073 | |
| dc.identifier | http://arxiv.org/abs/quant-ph/0506073 | |
| dc.identifier | Int. J. Quant. Inf. 4, 531 (2006) | |
| dc.identifier | doi:10.1142/S0219749906001980 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/98430 | |
| dc.subject | Quantum Physics | |
| dc.title | Entanglement monotones and maximally entangled states in multipartite qubit systems | |
| dc.type | text |