Question

Apply the Hadamard transform to different state vectors

score 126 · Answer 1 · 2026-04-29 12:52:10

126

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Apply the Hadamard transform to different state vectors

Published on 29 Apr 2026 - 12:52

score 2.1k · Answer 2 · 2026-04-12 17:15:28

2.1k

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Showing that any linear operator can be written as a sum of Hermitian matrices

Published on 12 Apr 2026 - 17:15

score 29k · Answer 3 · 2026-04-11 17:43:03

29k

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Exponential of Pauli Matrices

Published on 11 Apr 2026 - 17:43

score 170 · Answer 4 · 2026-04-13 06:05:40

170

Views

How to find the value with which I need to divide a unitary matrix such that its first component lies within the range of cosine?

Published on 13 Apr 2026 - 6:05

score 88 · Answer 5 · 2026-04-16 06:23:18

88

Views

Proving Finite Exponential Sum $\sum_{k\in\{0,r,...,N-r\}} \exp\left(\frac{2\pi ikl}{N}\right)=\sqrt{N/r}\text{ if l is integer multiple of N/r} $

Published on 16 Apr 2026 - 6:23

score 177 · Answer 6 · 2026-04-29 12:08:23

177

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How to calculate the unitaries satisfying $U_YXU_Y^\dagger=Y$ and $U_ZXU_Z^\dagger=Z$?

Published on 29 Apr 2026 - 12:08

score 685 · Answer 7 · 2026-04-08 20:16:57

685

Views

Understanding the Pauli-Y gate in the Bloch sphere

Published on 08 Apr 2026 - 20:16

score 503 · Answer 8 · 2026-03-25 09:26:27

503

Views

definition of the partial trace and its complete positivity

Published on 25 Mar 2026 - 9:26

score 116 · Answer 9 · 2026-04-14 03:57:00

116

Views

Calculate the square root of Euler angles

Published on 14 Apr 2026 - 3:57

score 46 · Answer 10 · 2026-04-11 14:16:19

46

Views

Pauli-Z gate clarification

Published on 11 Apr 2026 - 14:16

score 51 · Answer 11 · 2026-04-11 07:53:28

51

Views

Understanding a discrepancy in tensor multiplication

Published on 11 Apr 2026 - 7:53

score 44 · Answer 12 · 2026-04-15 05:28:16

44

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Is there ever a need to place two Hadamar gates side by side in a quantum circuit?

Published on 15 Apr 2026 - 5:28

score 39 · Answer 13 · 2026-03-25 07:59:54

39

Views

How difficult would it be to find valid answers for this hash arrangement?

Published on 25 Mar 2026 - 7:59

score 133 · Answer 14 · 2026-04-15 21:25:25

Let H be the Hadamard operator, prove $H^{\otimes n} \left| 0 \right>^{\otimes n} = \sum_{i=0}^{2^n -1} \left| i \right>$

score 860 · Answer 15 · 2026-04-15 11:25:32

860

Views

In the Stinespring dilation theorem, what is the minimum dimension for which a dilation Hilbert space of this form is guaranteed to exist?

Published on 15 Apr 2026 - 11:25

List Question

Apply the Hadamard transform to different state vectors

Showing that any linear operator can be written as a sum of Hermitian matrices

Exponential of Pauli Matrices

How to find the value with which I need to divide a unitary matrix such that its first component lies within the range of cosine?

Proving Finite Exponential Sum $\sum_{k\in\{0,r,...,N-r\}} \exp\left(\frac{2\pi ikl}{N}\right)=\sqrt{N/r}\text{ if l is integer multiple of N/r} $

How to calculate the unitaries satisfying $U_YXU_Y^\dagger=Y$ and $U_ZXU_Z^\dagger=Z$?

Understanding the Pauli-Y gate in the Bloch sphere

definition of the partial trace and its complete positivity

Calculate the square root of Euler angles

Pauli-Z gate clarification

Understanding a discrepancy in tensor multiplication

Is there ever a need to place two Hadamar gates side by side in a quantum circuit?

How difficult would it be to find valid answers for this hash arrangement?

Let H be the Hadamard operator, prove $H^{\otimes n} \left| 0 \right>^{\otimes n} = \sum_{i=0}^{2^n -1} \left| i \right>$

In the Stinespring dilation theorem, what is the minimum dimension for which a dilation Hilbert space of this form is guaranteed to exist?

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