We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Enhancing and protecting quantum correlations of a two-qubit entangled system via non-Hermitian operation.
- Authors
Wang, Yan-Yi; Fang, Mao-Fa
- Abstract
We investigate the dynamics of geometric measure of quantum discord and negativity as a measure of quantum entanglement for the system under the local non-Hermitian operation. Numerical calculations demonstrate that quantum discord and entanglement as two kinds of typical measures of quantum correlations can exceed respective initial value, and their evolution behaviors appear to violate conventional properties which formulates quantum discord and quantum entanglement are invariants under local operations. Our results show that non-Hermitian operation achieves distinctive effects on enhancement and protection of quantum correlations, which is mostly aroused by the non-Hermiticity and the non-unitarity of the non-Hermitian operation.
- Subjects
QUANTUM correlations; QUBITS; DYNAMICS; GEOMETRIC measure theory; NUMERICAL calculations; EVOLUTIONARY theories
- Publication
Quantum Information Processing, 2018, Vol 17, Issue 8, p1
- ISSN
1570-0755
- Publication type
Article
- DOI
10.1007/s11128-018-1977-8