Fidelity preserving maps on density operators
نویسندگان
چکیده
منابع مشابه
Fidelity Preserving Maps on Density Operators
We prove that any bijective fidelity preserving transformation on the set of all density operators on a Hilbert space is implemented by an either unitary or antiunitary operator on the underlying Hilbert space. Let H be a Hilbert space. The set of all density operators on H, that is, the set of all positive self-adjoint operators on H with finite trace is denoted by C 1 (H). (We note that one m...
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ژورنال
عنوان ژورنال: Reports on Mathematical Physics
سال: 2001
ISSN: 0034-4877
DOI: 10.1016/s0034-4877(01)80091-4