The automorphism group of separable states in quantum information theory
Journal Article
·
· Journal of Mathematical Physics
- Department of Mathematics, Statistics and Computer Science, University of Illinois at Chicago, Chicago, Illinois 60607-7045 (United States)
- Department of Mathematics, College of William and Mary, Williamsburg, Virginia 23187-8795 (United States)
- Department of Mathematics, Iowa State University, Ames, Iowa 50011 (United States)
- Department of Applied Mathematics, Hong Kong Polytechnic University, Hung Hom, Kowloon (Hong Kong)
We show that the linear group of automorphism of Hermitian matrices which preserves the set of separable states is generated by natural automorphisms: change of an orthonormal basis in each tensor factor, partial transpose in each tensor factor, and interchanging two tensor factors of the same dimension. We apply our results to the preservers of the product numerical range.
- OSTI ID:
- 21501303
- Journal Information:
- Journal of Mathematical Physics, Journal Name: Journal of Mathematical Physics Journal Issue: 4 Vol. 52; ISSN JMAPAQ; ISSN 0022-2488
- Country of Publication:
- United States
- Language:
- English
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