Question

Apply the Hadamard transform to different state vectors

score 118 · Answer 1 · 2026-03-17 06:53:57

118

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Apply the Hadamard transform to different state vectors

Published on 17 Mar 2026 - 6:53

score 2.1k · Answer 2 · 2019-05-22 12:47:49

2.1k

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

Published on 22 May 2019 - 12:47

score 29k · Answer 3 · 2019-05-23 12:59:06

29k

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Exponential of Pauli Matrices

Published on 23 May 2019 - 12:59

score 167 · Answer 4 · 2019-05-26 04:36:01

167

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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 26 May 2019 - 4:36

score 86 · Answer 5 · 2026-03-25 05:10:02

86

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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 25 Mar 2026 - 5:10

score 172 · Answer 6 · 2026-03-22 21:23:46

172

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

Published on 22 Mar 2026 - 21:23

score 682 · Answer 7 · 2019-06-08 17:53:31

682

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Understanding the Pauli-Y gate in the Bloch sphere

Published on 08 Jun 2019 - 17:53

score 502 · Answer 8 · 2019-06-19 20:32:52

502

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definition of the partial trace and its complete positivity

Published on 19 Jun 2019 - 20:32

score 113 · Answer 9 · 2019-06-27 15:33:33

113

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Calculate the square root of Euler angles

Published on 27 Jun 2019 - 15:33

score 42 · Answer 10 · 2019-07-10 07:48:59

42

Views

Pauli-Z gate clarification

Published on 10 Jul 2019 - 7:48

score 48 · Answer 11 · 2026-02-23 02:25:30

48

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Understanding a discrepancy in tensor multiplication

Published on 23 Feb 2026 - 2:25

score 41 · Answer 12 · 2019-08-09 19:08:31

41

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

Published on 09 Aug 2019 - 19:08

score 38 · Answer 13 · 2019-09-11 21:51:57

38

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

Published on 11 Sep 2019 - 21:51

score 130 · Answer 14 · 2019-09-16 07:13:39

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 857 · Answer 15 · 2014-04-01 17:25:18

857

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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 01 Apr 2014 - 17:25

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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