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--- user:yong [2022/03/28 17:18] – [불확정성 원리의 엔트로피 표현] yong
+++ user:yong [2023/09/05 15:46] (current) – external edit 127.0.0.1
@@ Line 85: / Line 85: @@
 \begin{equation*}
-p(c)q(d) = \cos^4(\theta/2) = \left(\frac{1+\cos\theta}{2}\right)^2 = \left(\frac{1+|\langle c | d \rangle |}{2}\right)^2
+p(c)q(d) = \cos^4(\theta/2) = \left(\frac{1+\cos\theta}{2}\right)^2 = \left(\frac{1+|\langle c | d \rangle |}{2}\right)^2 = \left(\frac{1+f(\hat{C},\hat{D})}{2}\right)^2
 \end{equation*}
+이며 이경우에는 엔트로피 최솟값이 되므로, $H(\hat{C}) + H(\hat{D})$의 부등식이 성립하게 된다.
 ====== 참고문헌 ======
   * M.A. Nielsen and I.L. Chuang, //Quantum Computation and Quantum Information: 10th Anniversary Edition//, Cambridge University Press (2010), Chapter 11
+  * D. Deutsch, //Uncertainty in Quantum Measurements//, PhysRevLett.50.631 (1983), 631--633, [[https://link.aps.org/doi/10.1103/PhysRevLett.50.631]]