List questions from unitary-matrices

Published on 09 Sep 2019 - 21:41

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Homotopy in $U_{2}$

Published on 17 Sep 2019 - 19:28

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Local unitary operators preserving a specific subspace should be permutation matrices.

Published on 20 Sep 2019 - 14:47

127

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What is the difference between compositional inverse and multiplicative inverse in Quantum mechanic?

Published on 20 Sep 2019 - 16:37

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Unitary matrices are invertible

Published on 21 Sep 2019 - 18:35

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Proof that any unitary matrix can be represented as $e^{i\theta_1 Z}e^{i\theta_2 X}e^{i\theta_3 Z}$

Published on 23 Sep 2019 - 20:06

88

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Classification of closed subgroups of U(2)

Published on 26 Sep 2019 - 20:17

265

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Unitary Operators on

Published on 30 Sep 2019 - 6:49

950

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Index notation for unitary matrices

Published on 22 Mar 2014 - 17:50

248

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Finding unitary rotation matrix for triangularization

Published on 24 Mar 2026 - 23:57

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Prove That the Gram Matrix Determines Vectors Up to Isometry / Multiplication by Unitary Matrix

Published on 27 Sep 2014 - 3:07

931

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How to show that $\| QA\|_2=\| A \|_2$ where $Q$ is unitary (for a matrix A)

Published on 24 Oct 2014 - 16:13

10.3k

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Given a unitary matrix $U$, how do I find $A$ such that $U=e^{iA}$?

Published on 01 Jan 2015 - 9:13

88

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Trace inequality of the form $\operatorname{Tr}\Big(QMQ^f(M)\Big) \le \operatorname{Tr}\Big(QQ^Mf(M)\Big)$

Published on 09 Oct 2019 - 21:49

143

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Fundamental group of $U(n) / \mathbb{Z}_m$

Published on 10 Oct 2019 - 14:55

List Question

Inverse of unitary linear transfomation

Homotopy in $U_{2}$

Local unitary operators preserving a specific subspace should be permutation matrices.

What is the difference between compositional inverse and multiplicative inverse in Quantum mechanic?

Unitary matrices are invertible

Proof that any unitary matrix can be represented as $e^{i\theta_1 Z}e^{i\theta_2 X}e^{i\theta_3 Z}$

Classification of closed subgroups of U(2)

Unitary Operators on

Index notation for unitary matrices

Finding unitary rotation matrix for triangularization

Prove That the Gram Matrix Determines Vectors Up to Isometry / Multiplication by Unitary Matrix

How to show that $\| QA\|_2=\| A \|_2$ where $Q$ is unitary (for a matrix A)

Given a unitary matrix $U$, how do I find $A$ such that $U=e^{iA}$?

Trace inequality of the form $\operatorname{Tr}\Big(QMQ^f(M)\Big) \le \operatorname{Tr}\Big(QQ^Mf(M)\Big)$

Fundamental group of $U(n) / \mathbb{Z}_m$

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