Journal
PHYSICAL REVIEW A
Volume 79, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.79.032322
Keywords
quantum computing; quantum entanglement; random processes
Categories
Funding
- FAPERJ
- PROBRAL CAPES/DAAD Project
- Brazilian Millenium Institute for Quantum Information
- EU QAP
- Spanish MEC [FIS2007-60182]
- Consolider-Ingenio QOIT projects
- Generalitat de Catalunya
- Alexander von Humboldt foundation
- ICREA Funding Source: Custom
Ask authors/readers for more resources
We derive analytical upper bounds for the entanglement of generalized Greenberger-Horne-Zeilinger states coupled to locally depolarizing and dephasing environments and for local thermal baths of arbitrary temperature. These bounds apply for any convex quantifier of entanglement, and exponential entanglement decay with the number of constituent particles is found. The bounds are tight for depolarizing and dephasing channels. We also show that randomly generated initial states tend to violate these bounds and that this discrepancy grows with the number of particles.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available