For any matrix describing a bipartite system, the trace norm is bounded by sqrt(2) times the smaller dimension times the product-observable norm, and sqrt(2) is optimal.
Some properties of crossings and partitions
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
fields
quant-ph 1years
2026 1verdicts
ACCEPT 1representative citing papers
citing papers explorer
-
Global vs. Product Observables in Bipartite Quantum Systems: The Sharp Bound
For any matrix describing a bipartite system, the trace norm is bounded by sqrt(2) times the smaller dimension times the product-observable norm, and sqrt(2) is optimal.