A class of Bell diagonal states and entanglement witnesses
D. Chruscinski, A. Kossakowski, K. Mlodawski, T. Matsuoka
TL;DR
This paper studies Bell diagonal states, providing new examples of bound entangled states and constructing entanglement witnesses diagonal in the magic basis to better understand quantum entanglement detection.
Contribution
It introduces new bound entangled Bell diagonal states and develops a class of entanglement witnesses in the magic basis, advancing entanglement detection methods.
Findings
New bound entangled Bell diagonal states identified
Constructed entanglement witnesses diagonal in the magic basis
Enhanced tools for detecting quantum entanglement
Abstract
We analyze special class of bipartite states - so called Bell diagonal states. In particular we provide new examples of bound entangled Bell diagonal states and construct the class of entanglement witnesses diagonal in the magic basis.
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Taxonomy
TopicsQuantum Computing Algorithms and Architecture · Quantum Information and Cryptography · Quantum Mechanics and Applications