Abstract
We consider three von Neumann entropy inequalities: subadditivity; Pinsker's inequality for relative entropy; and the monotonicity of relative entropy. For these we state conditions for equality, and we prove some new error bounds away from equality, including an improved version of Pinsker's inequality.
Original language | English (US) |
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Article number | 042201 |
Journal | Journal of Mathematical Physics |
Volume | 55 |
Issue number | 4 |
DOIs | |
State | Published - Apr 23 2014 |
All Science Journal Classification (ASJC) codes
- Statistical and Nonlinear Physics
- Mathematical Physics