User Qmechanic - Physics Stack Exchange

bio	website	arXiv.org
	location	Europe
	age	47
visits	member for	2 years, 2 months
	seen	4 hours ago
stats	profile views	4,459

	17,162 reputation	bio	website	arXiv.org	visits	member for	2 years, 2 months
41648 badges		location	Europe		seen	4 hours ago

1

5

votes

0

answers

78

views

Do semiclassical GR and charge quantisation imply magnetic monopoles?

apr 5 at 20:13 Qmechanic♦ 17.2k

2

4

votes

0

answers

117

views

Question about the HVZ theorem

reference-request mathematical-physics quantum-mechanics

apr 6 at 13:57 Sue 1

2

6

votes

2

answers

145

views

Why does the quantum Heisenberg model become the classical one when $S\to\infty$?

quantum-mechanics homework condensed-matter

may 13 at 15:43 wsc 2,688

1

5

votes

2

answers

157

views

A question on the existence of Dirac points in graphene?

quantum-mechanics mathematical-physics condensed-matter symmetry electronic-band-theory

apr 23 at 2:12 BebopButUnsteady 2,244

2

1

vote

0

answers

40

views

Lagrangians for non-local equations of motion

quantum-field-theory lagrangian-formalism dirac-equation

apr 4 at 19:46 user6818 728

2

4

votes

1

answer

80

views

Virasoro TT OPE in Polchinski's book

string-theory conformal-field-theory wick-theorem

apr 2 at 15:39 Olof 693

2

5

votes

2

answers

98

views

How to understand worldsheet fermion as a section?

string-theory mathematical-physics topological-field-theory

mar 31 at 8:18 David Bar Moshe 7,647

1

4

votes

1

answer

139

views

Lagrangian Coordinates in Fluid Flow

fluid-dynamics

apr 27 at 12:02 Community♦ 1

2

3

votes

1

answer

124

views

What are the conserved charges related to the Virasoro generators?

string-theory symmetry conservation-laws conformal-field-theory

mar 27 at 8:17 Luboš Motl 67.6k

1

2

votes

1

answer

66

views

Interacting particles

statistical-mechanics interactions

mar 26 at 19:04 joshphysics 9,448

2

3

votes

0

answers

50

views

Does the ensemble of effective Lagrangians in the String theory landscape mostly include gauge theories?

string-theory gauge-theory effective-action string-theory-landscape

mar 26 at 8:49 user1247 1,263

4

3

votes

1

answer

145

views

Why does a superconductor obey particle-hole symmetry?

condensed-matter superconductivity

mar 26 at 8:40 Luboš Motl 67.6k

2

5

votes

1

answer

77

views

About Vanishing of BRST commutator in path integral

string-theory topological-field-theory

mar 26 at 11:00 Craig Thone 409

2

1

vote

1

answer

54

views

Path integral with boundary and bulk terms

path-integral

mar 26 at 10:36 Luboš Motl 67.6k

5

6

votes

1

answer

74

views

Do instantons support quantum bound states?

quantum-field-theory gauge-theory topological-field-theory instantons solitons

mar 26 at 10:48 Luboš Motl 67.6k

2

3

votes

1

answer

71

views

Gell-Mann Low Theorem and Vacuum Energy

quantum-field-theory interactions

mar 25 at 22:30 Michael Brown 5,429

6

9

votes

1

answer

260

views

Symmetries in Wilsonian RG

quantum-field-theory string-theory renormalization regularization

apr 10 at 6:45 Qmechanic♦ 17.2k

1

2

votes

1

answer

98

views

Current operators for compactified CFTs

string-theory conformal-field-theory compactification current-algebra affine-lie-algebra

mar 30 at 4:40 dmckee♦ 21.3k

5

votes

1

answer

120

views

Correlators in String Theory (Green Schwarz Witten)

string-theory

mar 26 at 12:54 Luboš Motl 67.6k

3

4

votes

1

answer

116

views

Name of fermionic CFT theory

conformal-field-theory fermions

mar 26 at 11:46 Luboš Motl 67.6k

4

8

votes

1

answer

83

views

Radial quantization and infrared divergences

renormalization conformal-field-theory

mar 26 at 12:06 Luboš Motl 67.6k

5

6

votes

0

answers

147

views

Regulator-scheme-independence in QFT

quantum-field-theory renormalization regularization

mar 25 at 20:26 joshphysics 9,448

1

vote

0

answers

73

views

Explicit evaluation of a radially ordered product

string-theory conformal-field-theory operators wick-theorem

apr 2 at 15:56 Qmechanic♦ 17.2k

1

2

votes

1

answer

67

views

Alternative methods to derive the static potential in the NR limit of QED

quantum-field-theory quantum-electrodynamics scattering

apr 24 at 16:01 Community♦ 1

2

1

vote

1

answer

88

views

Flow of supercurrent in a superconductor

condensed-matter superconductivity

apr 26 at 21:13 Oaoa 572

2

9

votes

2

answers

307

views

Entropy of a state subject to the action of a set of random unitaries

quantum-mechanics quantum-information quantum-computation

apr 4 at 17:47 Norbert Schuch 717

2

3

votes

3

answers

188

views

Where do the conservation laws come from?

energy-conservation angular-momentum momentum conservation-laws noethers-theorem

mar 22 at 13:13 Vladimir Kalitvianski 5,531

1

5

votes

1

answer

172

views

What is the “direction” of the transition dipole moment? (Understanding Eq. 9.29, Charge and Energy Transfer 3rd Ed, May & Kuhn)

quantum-mechanics quantum-optics molecules dipole molecular-dynamics

may 13 at 2:06 Community♦ 1

2

votes

0

answers

96

views

Conformal symmetry of Navier-Stokes?

fluid-dynamics conformal-field-theory ads-cft

mar 21 at 21:00 user6818 1,224

4

8

votes

0

answers

121

views

Compactifying on a circle and the exchange of R and NS sectors

string-theory fermions compactification kaluza-klein

mar 23 at 1:20 user404153 835

Qmechanic

1,284 Favorites