User Генивалдо

8 votes

3 answers

799 views

In a general physical sense, is the position of a particle really a vector?

asked Jan 18, 2020 at 18:19

7 votes

2 answers

1k views

Derivatives of Lagrangian for relativistic massive point particle

asked Sep 5, 2021 at 1:53

6 votes

2 answers

1k views

Physical Motivation for Four-Velocity definition

asked Feb 6, 2020 at 0:25

5 votes

4 answers

3k views

Is the Four-gradient of a Scalar Field a Four-Vector?

asked Feb 1, 2020 at 22:20

4 votes

2 answers

592 views

Why the Real Scalar Field lagrangian has this form?

asked Jan 10, 2020 at 0:31

4 votes

1 answer

328 views

Area element with worldsheet metric in Polyakov action

asked Sep 18, 2021 at 18:12

4 votes

1 answer

602 views

Density of states in microcanonical ensemble for discrete and continuum energy spectrum

asked Jan 19, 2022 at 13:59

4 votes

0 answers

180 views

Trying to derive Polchinski's equation $(2.2.11)$

asked Sep 3, 2022 at 20:17

4 votes

1 answer

97 views

Logical consistence in Neumann BC in the Nambu-Goto action

asked Jun 5, 2023 at 13:43

4 votes

1 answer

289 views

Help with strange notation involving fractions of tensors

asked Dec 2, 2023 at 20:49

3 votes

1 answer

137 views

How is the dimensionful renornalization scale $\mu$ related to break of scale invariance in String Theory?

asked Nov 11, 2023 at 23:53

3 votes

1 answer

85 views

Energy-momentum tensor normal ordering in Polchinski

asked Jan 30, 2023 at 10:43

3 votes

1 answer

335 views

Physical intuition for the Geodesic Equation derivation via a Variational Principle: Why maximum proper time instead of minimum?

asked Feb 6, 2020 at 23:59

3 votes

4 answers

1k views

Problem with Klein-Gordon equation derivation

asked Mar 4, 2020 at 11:00

3 votes

1 answer

208 views

Attemp to encode newtonian gravitation as 3-dimensional space curvature

asked Jun 6, 2021 at 22:41

2 votes

0 answers

203 views

Deriving einbein action from Polyakov $p$-brane action

asked Jun 29, 2021 at 0:03

2 votes

3 answers

313 views

Confusion about vector and scalar field transformation laws

asked Jul 1, 2021 at 18:59

2 votes

0 answers

925 views

On the derivation of Rindler metric

asked Jul 18, 2021 at 3:42

2 votes

1 answer

75 views

On the finiteness of worldsheet area

asked Dec 31, 2022 at 20:09

2 votes

1 answer

293 views

Derivation of 1st law of thermodynamics using microcanonical ensemble

asked Jan 23, 2022 at 21:49

2 votes

1 answer

139 views

Conformal transformations problem in flat worldsheet

asked Feb 5, 2022 at 2:57

2 votes

0 answers

196 views

Residual symmetry of Polyakov action in general backgrounds

asked Oct 31, 2021 at 20:29

2 votes

0 answers

206 views

Trying to understand the conformal gauge "derivation" in Polyakov action symmetries [duplicate]

asked May 6, 2021 at 16:02

2 votes

0 answers

84 views

Physical and mathematical relation between $(\tau, \sigma)$ parameters and coordinates $X^\mu$ in String Theory

asked May 24, 2023 at 20:27

2 votes

1 answer

68 views

What does really mean to glue the endpoints of a closed string?

asked May 25, 2023 at 0:39

2 votes

0 answers

79 views

Why $C^{\infty}(\Sigma, \mathbb{R}^D)$ instead of $\text{Emb}(\Sigma, \mathbb{R}^D)$ in string theory $\sigma$-model?

asked Jun 22, 2023 at 20:22

2 votes

0 answers

73 views

Cancelling one-loop divergences in non-linear sigma model expansion term

asked Oct 16, 2023 at 12:03

2 votes

0 answers

77 views

Confusion about choosing an Euclidean world sheet metric in String Theory path integral

asked Nov 4, 2023 at 18:03

2 votes

0 answers

53 views

RG equations for renormalized metric in string theory

asked Nov 22, 2023 at 14:51

2 votes

0 answers

47 views

Are the one-loop beta functions in bosonic string theory written in terms of bare or renormalized background fields?

asked Nov 27, 2023 at 22:06

Stack Exchange Network

55 Questions

In a general physical sense, is the position of a particle really a vector?

Derivatives of Lagrangian for relativistic massive point particle

Physical Motivation for Four-Velocity definition

Is the Four-gradient of a Scalar Field a Four-Vector?

Why the Real Scalar Field lagrangian has this form?

Area element with worldsheet metric in Polyakov action

Density of states in microcanonical ensemble for discrete and continuum energy spectrum

Trying to derive Polchinski's equation $(2.2.11)$

Logical consistence in Neumann BC in the Nambu-Goto action

Help with strange notation involving fractions of tensors

How is the dimensionful renornalization scale $\mu$ related to break of scale invariance in String Theory?

Energy-momentum tensor normal ordering in Polchinski

Physical intuition for the Geodesic Equation derivation via a Variational Principle: Why maximum proper time instead of minimum?

Problem with Klein-Gordon equation derivation

Attemp to encode newtonian gravitation as 3-dimensional space curvature

Deriving einbein action from Polyakov $p$-brane action

Confusion about vector and scalar field transformation laws

On the derivation of Rindler metric

On the finiteness of worldsheet area

Derivation of 1st law of thermodynamics using microcanonical ensemble

Conformal transformations problem in flat worldsheet

Residual symmetry of Polyakov action in general backgrounds

Trying to understand the conformal gauge "derivation" in Polyakov action symmetries [duplicate]

Physical and mathematical relation between $(\tau, \sigma)$ parameters and coordinates $X^\mu$ in String Theory

What does really mean to glue the endpoints of a closed string?

Why $C^{\infty}(\Sigma, \mathbb{R}^D)$ instead of $\text{Emb}(\Sigma, \mathbb{R}^D)$ in string theory $\sigma$-model?

Cancelling one-loop divergences in non-linear sigma model expansion term

Confusion about choosing an Euclidean world sheet metric in String Theory path integral

RG equations for renormalized metric in string theory

Are the one-loop beta functions in bosonic string theory written in terms of bare or renormalized background fields?