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Fixed typo of C_{U} and Controlled Z gate #1313
Merged
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Summary
Fixed typo of C_{U} and Controlled Z gate
Details and comments
"$$C_{(jk), (lm)} = \left(\underset{\text{qubit}~1}{\left\langle j \right|} \otimes \underset{\text{qubit}~0}{\left\langle k \right|}\right) C_{U} \left(\underset{\text{qubit}~1}{\left| l \right\rangle} \otimes \underset{\text{qubit}~0}{\left| k \right\rangle}\right),$$\n"
It should be
"$$C_{(jk), (lm)} = \left(\underset{\text{qubit}~1}{\left\langle j \right|} \otimes \underset{\text{qubit}~0}{\left\langle k \right|}\right) C_{U} \left(\underset{\text{qubit}~1}{\left| l \right\rangle} \otimes \underset{\text{qubit}~0}{\left| m \right\rangle}\right),$$\n"
"#### Controlled
It should be$Z$ (or, controlled Phase-Flip) gate\n"
"#### Controlled
ref:
Page 319
Michael A. Nielsen, Isaac L. Chuang, Quantum Computation and Quantum Information, 2010