Journal
PHYSICAL REVIEW A
Volume 86, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.86.032338
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Funding
- NSFC [11205121, 10974247, 11175248]
- 973 program [2010CB922904]
- NSF of Shaanxi Province [2010JM1011]
- Scientific Research Program of Education Department of Shaanxi Provincial Government [12JK0986]
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We relate the principle of quantum-memory-assisted entropic uncertainty to quantum teleportation and show geometrically that any two-qubit state which lowers the upper bound of this uncertainty relation is useful for teleportation. We also explore the efficiency of this entropic uncertainty principle on witnessing entanglement in a general class of bosonic structured reservoirs. The entanglement regions witnessed by different estimates are determined, which may have no relation with the explicit form of the spectral density of the reservoir for certain special chosen sets of the initial states.
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