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Quantum Computing #1: Dirac's Bra-Ket Notation and Tensor Product
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This is the first lecture of the quantum computing course. In this lecture, I explain the fundamentals of Dirac's Bra-Ket notation, which are essential to understanding quantum computing. I demonstrate how to compute tensor products and their relationship with ket-ket and bra-bra, providing examples for better comprehension. We learn to convert ket-notation to bra-notation and vice versa via the conjugate-transpose operation. Additionally, I demonstrate how to express matrices using ket-bra and compute inner products using bra-ket notation.
Link to the course's playlist:
**** References Used: ****
[1] Nielsen, Michael A., and Isaac L. Chuang. Quantum computation and quantum information. Cambridge university press, 2010.
[2] John Watrous, "CPSC 519/619: Quantum Computation". Jan 10, 2006
[3] Childs, Andrew M. "Lecture notes on quantum algorithms." Lecture notes at University of Maryland (2017).
Chapters:
00:00 Introduction
01:37 Ket-Notation
05:24 Express Vectors in Standard Basis
08:32 Bra-Notation
09:53 Computing Conjugate-Transpose
14:00 Tensor Product with Example
16:40 Learning Ket-Ket with Examples
21:57 Learning Bra-Bra with Examples
24:09 Write Matrices with Ket-Bra
38:02 Inner Product with Bra-Ket
39:45 Unit Vectors
41:34 Orthogonal Vectors
43:03 Example of Inner Product
47:52 Concluding Remarks
**** SUPPORT ME ****
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Link to the course's playlist:
**** References Used: ****
[1] Nielsen, Michael A., and Isaac L. Chuang. Quantum computation and quantum information. Cambridge university press, 2010.
[2] John Watrous, "CPSC 519/619: Quantum Computation". Jan 10, 2006
[3] Childs, Andrew M. "Lecture notes on quantum algorithms." Lecture notes at University of Maryland (2017).
Chapters:
00:00 Introduction
01:37 Ket-Notation
05:24 Express Vectors in Standard Basis
08:32 Bra-Notation
09:53 Computing Conjugate-Transpose
14:00 Tensor Product with Example
16:40 Learning Ket-Ket with Examples
21:57 Learning Bra-Bra with Examples
24:09 Write Matrices with Ket-Bra
38:02 Inner Product with Bra-Ket
39:45 Unit Vectors
41:34 Orthogonal Vectors
43:03 Example of Inner Product
47:52 Concluding Remarks
**** SUPPORT ME ****
I would greatly appreciate it if you could treat me to a cup of coffee or show support for my channel through any other means. You can do so by visiting:
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