Multi-level, multi-party singlets as ground states and their role in entanglement distribution
| dc.creator | Hadley, Christopher | |
| dc.creator | Bose, Sougato | |
| dc.date | 2006-02-16 | |
| dc.date | 2008-05-23 | |
| dc.date.accessioned | 2026-07-07T09:42:53Z | |
| dc.date.available | 2026-07-07T09:42:53Z | |
| dc.description | We show that a singlet of many multi-level quantum systems arises naturally as the ground state of a physically-motivated Hamiltonian. The Hamiltonian simply exchanges the states of nearest-neighbours in some network of qudits (d-level systems); the results are independent of the strength of the couplings or the network's topology. We show that local measurements on some of these qudits project the unmeasured qudits onto a smaller singlet, regardless of the choice of measurement basis at each measurement. It follows that the entanglement is highly persistent, and that through local measurements, a large amount of entanglement may be established between spatially-separated parties for subsequent use in distributed quantum computation. | |
| dc.description | Corrected method for physical preparation | |
| dc.identifier | https://arxiv.org/abs/quant-ph/0602139 | |
| dc.identifier | http://arxiv.org/abs/quant-ph/0602139 | |
| dc.identifier | Phys. Rev. A 77, 050308(R) (2008) | |
| dc.identifier | doi:10.1103/PhysRevA.77.050308 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/162354 | |
| dc.subject | Quantum Physics | |
| dc.title | Multi-level, multi-party singlets as ground states and their role in entanglement distribution | |
| dc.type | text |