Entanglement of Formation of an Arbitrary State of Two Qubits
| dc.creator | Wootters, William K. | |
| dc.date | 1997-09-12 | |
| dc.date | 1997-09-13 | |
| dc.date.accessioned | 2026-07-07T12:33:23Z | |
| dc.date.available | 2026-07-07T12:33:23Z | |
| dc.description | The entanglement of a pure state of a pair of quantum systems is defined as the entropy of either member of the pair. The entanglement of formation of a mixed state is defined as the minimum average entanglement of an ensemble of pure states that represents the given mixed state. An earlier paper [Phys. Rev. Lett. 78, 5022 (1997)] conjectured an explicit formula for the entanglement of formation of a pair of binary quantum objects (qubits) as a function of their density matrix, and proved the formula to be true for a special class of mixed states. The present paper extends the proof to arbitrary states of this system and shows how to construct entanglement-minimizing pure-state decompositions. | |
| dc.description | 13 pages, LaTeX, no figures | |
| dc.identifier | https://arxiv.org/abs/quant-ph/9709029 | |
| dc.identifier | http://arxiv.org/abs/quant-ph/9709029 | |
| dc.identifier | Phys.Rev.Lett.80:2245-2248,1998 | |
| dc.identifier | doi:10.1103/PhysRevLett.80.2245 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/217109 | |
| dc.subject | Quantum Physics | |
| dc.title | Entanglement of Formation of an Arbitrary State of Two Qubits | |
| dc.type | text |