Entanglement measures as physical observables
arXiv:0710.5037 · doi:10.1007/s00340-007-2864-7
Abstract
We discuss why regular observables can not be proper entanglement measures, and how observables in a generalized setting can be used to make an entanglement monotone a directly observable quantity for the case of pure states. For the case of mixed states, these generalized observables can be used to find valid lower bounds on entanglement monotones that can be measured in laboratory experiments in the same fashion as it can also be done for pure states.
References in corpus (8)
- Scalable multi-particle entanglement of trapped ions
- Free-Space distribution of entanglement and single photons over 144 km
- Quantifying Entanglement with Witness Operators
- Estimating entanglement measures in experiments
- On experimental procedures for entanglement verification
- Concurrence via entanglement witnesses
- Evaluable multipartite entanglement measures: are multipartite concurrences entanglement monotones?
- General construction of noiseless networks detecting entanglement with help of linear maps