Research PapersNo Access
Sum uncertainty relations for mixed states
https://doi.org/10.1142/S0219749917500307Cited by:0 (Source: Crossref)
Abstract
In this paper, we extend existing variance-based sum uncertainty relations for pure states to those for mixed states by a mathematical approach. Furthermore, we show that the monotonicity of the standard deviation of observables induces a variance-based sum uncertainty relation. Finally, the multiobservable case is also discussed.
PACS: 03.65.Ta, 03.65.Db, 02.30.Tb
