Question

Proof of the Fourier Transform of 1 (in the distribution sense)

score 35 · Answer 1 · 2023-12-09 09:17:48

Proof of the Fourier Transform of 1 (in the distribution sense)

Published on 09 Dec 2023 - 9:17

score 118 · Answer 2 · 2023-12-09 17:03:50

Where does the arbitrary phase factor of the infinitesimal translation operator, that appears in (1.194), on pg.40 of Sakurai, come from?

score 46 · Answer 3 · 2023-12-10 11:06:43

46

Views

Dirac distribution of a product: Simplifying an integral

Published on 10 Dec 2023 - 11:06

score 69 · Answer 4 · 2023-12-10 21:44:30

69

Views

Unit of the Heaviside function

Published on 10 Dec 2023 - 21:44

score 86 · Answer 5 · 2023-12-12 21:28:26

86

Views

double integral of function with dirac delta

Published on 12 Dec 2023 - 21:28

score 60 · Answer 6 · 2023-12-22 18:34:27

60

Views

Fourier Transform as limit case of Fourier Series in $sin$ and $rect$ functions

Published on 22 Dec 2023 - 18:34

score 139 · Answer 7 · 2023-12-26 02:55:20

139

Views

On the derivative of Dirac delta

Published on 26 Dec 2023 - 2:55

score 64 · Answer 8 · 2023-12-28 03:48:32

64

Views

Is the integration of Dirac delta function and another function correct?

Published on 28 Dec 2023 - 3:48

score 47 · Answer 9 · 2026-03-22 11:24:21

47

Views

Solve Coarea formula using radon transform

Published on 22 Mar 2026 - 11:24

score 44 · Answer 10 · 2023-12-30 03:52:23

44

Views

How can the limit of this function be a Dirac delta function?

Published on 30 Dec 2023 - 3:52

score 249 · Answer 11 · 2026-03-26 01:12:47

249

Views

How to Fourier transform to find the operator coefficients in the solution to the real Klein-Gordon scalar field in the Heisenberg picture?

Published on 26 Mar 2026 - 1:12

score 69 · Answer 12 · 2026-03-25 22:03:15

69

Views

Proof explanation for $\left[\hat a(\vec p)^\dagger\hat a(\vec p), \hat a(\vec q)^\dagger\hat a(\vec q)\right]=0$

Published on 25 Mar 2026 - 22:03

score 31 · Answer 13 · 2026-02-23 02:55:27

31

Views

Obtaining correct boundary conditions around a pole for Bessel equation plus delta function

Published on 23 Feb 2026 - 2:55

score 55 · Answer 14 · 2024-01-11 15:03:04

55

Views

Translation invariant operators and Fourier transforms

Published on 11 Jan 2024 - 15:03

score 48 · Answer 15 · 2024-01-12 13:37:17

48

Views

Integral of a delta with boundary at zero

Published on 12 Jan 2024 - 13:37

List Question

Proof of the Fourier Transform of 1 (in the distribution sense)

Where does the arbitrary phase factor of the infinitesimal translation operator, that appears in (1.194), on pg.40 of Sakurai, come from?

Dirac distribution of a product: Simplifying an integral

Unit of the Heaviside function

double integral of function with dirac delta

Fourier Transform as limit case of Fourier Series in $sin$ and $rect$ functions

On the derivative of Dirac delta

Is the integration of Dirac delta function and another function correct?

Solve Coarea formula using radon transform

How can the limit of this function be a Dirac delta function?

How to Fourier transform to find the operator coefficients in the solution to the real Klein-Gordon scalar field in the Heisenberg picture?

Proof explanation for $\left[\hat a(\vec p)^\dagger\hat a(\vec p), \hat a(\vec q)^\dagger\hat a(\vec q)\right]=0$

Obtaining correct boundary conditions around a pole for Bessel equation plus delta function

Translation invariant operators and Fourier transforms

Integral of a delta with boundary at zero

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