New Inequality for Density Matrices of Single Qudit States

Journal of Russian Laser Research - Tập 35 - Trang 457-461 - 2014
Vladimir N. Chernega1, Olga V. Man’ko1, Vladimir I. Man’ko1,2
1P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow, Russia
2Moscow Institute of Physics and Technology (State University), Dolgoprudnyí, Russia

Tóm tắt

Using the monotonicity of relative entropy of composite quantum systems, we obtain new entropic inequalities for arbitrary density matrices of single qudit states. Examples of qutrit state inequalities and the “qubit portrait” bound for the distance between the qutrit states are considered in explicit form.

Tài liệu tham khảo

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