List questions from unitary-matrices

Published on 10 Jul 2023 - 23:19

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Given $A \in \Bbb C^{3 \times 3}$ that has a SVD $A=u_1v_1^+u_2v_2^+u_3v_3^*$ then is $A$ a unitary matrix?

Published on 18 Jul 2023 - 7:35

149

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Question on unitary matrices

Published on 20 Jul 2023 - 15:45

57

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Unitary matrix of polar decomposition

Published on 25 Mar 2026 - 20:42

62

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Generators of $SU(n)$

Published on 23 Mar 2026 - 18:54

77

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What is the geometric meaning of the condition $det(A) = 1$ for $A \in SU(n)$?

Published on 11 Aug 2023 - 20:13

80

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Implication of mean ergodic theorem

Published on 12 Aug 2023 - 19:07

86

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Prove that set of matrices is dense in $U(2)$

Published on 25 Mar 2026 - 19:04

127

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Exercise 4.9 Nielsen and Chuang's "Quantum Computation and Quantum Information

Published on 15 Aug 2023 - 13:49

41

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A formula for a unitary matrix

Published on 17 Aug 2023 - 7:35

84

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Existence of unitary operator affecting partial trace?

Published on 28 Aug 2023 - 7:28

69

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su(2) vs ZXZ decomposition

Published on 31 Aug 2023 - 12:15

67

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SVD of product of diagonal and unitary matrices

Published on 10 Sep 2023 - 13:08

19

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Modified orthogonal relation between unitary matrices with columns multiplied by a complex factor

Published on 23 Sep 2023 - 21:06

28

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The dimension of the unitary matrix as a real variety or a complex variety.

Published on 25 Sep 2023 - 13:22

List Question

If $A$ is Hermitian and $U=(A-iI)(A+iI)^{−1}$ is unitary, then $U-I$ is invertible

Given $A \in \Bbb C^{3 \times 3}$ that has a SVD $A=u_1v_1^+u_2v_2^+u_3v_3^*$ then is $A$ a unitary matrix?

Question on unitary matrices

Unitary matrix of polar decomposition

Generators of $SU(n)$

What is the geometric meaning of the condition $det(A) = 1$ for $A \in SU(n)$?

Implication of mean ergodic theorem

Prove that set of matrices is dense in $U(2)$

Exercise 4.9 Nielsen and Chuang's "Quantum Computation and Quantum Information

A formula for a unitary matrix

Existence of unitary operator affecting partial trace?

su(2) vs ZXZ decomposition

SVD of product of diagonal and unitary matrices

Modified orthogonal relation between unitary matrices with columns multiplied by a complex factor

The dimension of the unitary matrix as a real variety or a complex variety.

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