User Bjorn Wesen - Physics Stack Exchange

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	2,021 reputation	bio	website		visits	member for	2 years, 1 month
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27

91

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13

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How does gravity escape a black hole?

may 13 at 14:19 shawnhcorey 111

22

59

votes

13

answers

6

kviews

Superluminal neutrinos

neutrino faster-than-light

apr 2 '12 at 12:58 Frédéric Grosshans 5,370

26

41

votes

4

answers

3

kviews

Gauge symmetry is not a symmetry?

quantum-field-theory particle-physics gauge-theory research-level topological-order

nov 5 at 6:14 Community♦ 1

18

36

votes

1

answer

3

kviews

Why do we not have spin greater than 2?

quantum-field-theory spin

sep 30 '11 at 22:23 Ron Maimon 44.8k

6

32

votes

5

answers

2

kviews

Why do we think there are only three generations of fundamental particles?

particle-physics standard-model

nov 27 '11 at 1:37 Dr BDO Adams 244

8

32

votes

2

answers

2

kviews

Why did Feynman's thesis almost work?

quantum-electrodynamics maxwell-equations feynman-diagram

may 30 '12 at 11:13 Terry Bollinger 5,259

12

23

votes

2

answers

3

kviews

What can the D-Wave quantum computer do?

quantum-information quantum-computation

sep 13 '11 at 3:34 Joe Fitzsimons 5,596

16

votes

9

answers

4

kviews

About the complex nature of the wave function?

quantum-mechanics wavefunction complex-numbers

dec 8 at 18:24 paritto 76

6

14

votes

6

answers

950

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Why can we treat quantum scattering problems as time-independent?

quantum-mechanics schrodinger-equation potential scattering

oct 6 at 20:11 Qmechanic♦ 17.3k

7

13

votes

3

answers

3

kviews

Why correlation functions?

correlation-function

sep 29 '11 at 0:37 Community♦ 1

7

13

votes

6

answers

2

kviews

Can Noether's theorem be understood intuitively?

symmetry conservation-laws lagrangian-formalism noethers-theorem intuition

nov 25 at 4:58 Claudius 1,684

7

13

votes

4

answers

430

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Home-made lattice calculation?

computational-physics lattice-model

jul 13 at 15:04 user1504 3,834

4

13

votes

5

answers

494

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Do quantum states contain exponentially more information than classical states?

quantum-information

may 12 at 20:38 Qmechanic♦ 17.3k

3

10

votes

7

answers

1

kviews

Can a particle be physically observed inside a quantum barrier?

quantum-mechanics tunneling

jun 18 '11 at 12:59 Qmechanic♦ 17.3k

10

votes

7

answers

1

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The philosophy behind the mathematics of quantum mechanics

quantum-mechanics mathematics

aug 1 '11 at 11:58 yatima2975 161

2

10

votes

2

answers

3

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How do Optically Active Compounds Rotate Plane Polarized Light?

optics electromagnetic-radiation polarization

aug 8 at 8:47 David Zaslavsky♦ 27.4k

2

7

votes

3

answers

269

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How does the quantum path integral relate to the quantization of energy?

quantum-mechanics path-integral

aug 23 '11 at 10:44 Piotr Migdal 3,263

3

7

votes

1

answer

345

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Is a weak measurement the same as an unsharp measurement or POVM?

quantum-mechanics quantum-information quantum-interpretations

oct 22 at 20:29 Antonio Di Lorenzo 41

3

7

votes

1

answer

322

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Can observations of entangled particles affect their unobserved counterparts?

quantum-mechanics entanglement epr-experiment

apr 16 '11 at 1:02 Bjorn Wesen 2,021

3

7

votes

1

answer

265

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How do ideas of leading singularities and Grassmanian help in curing infrared divergences when calculating N=4 scattering amplitudes?

quantum-field-theory string-theory supersymmetry scattering

feb 27 '11 at 6:25 Luboš Motl 67.8k

3

6

votes

3

answers

703

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Alcubierre Drive - Clarification on relativistic effects

general-relativity speed-of-light faster-than-light warp-drives

jun 22 '12 at 4:18 lurscher 4,287

2

6

votes

6

answers

422

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How low can an electron go?

quantum-mechanics velocity electron

mar 26 at 22:44 Programming Enthusiast 21

3

6

votes

3

answers

725

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Why is it valid to take the partial trace to describe a subsystem?

quantum-mechanics entanglement

dec 19 '11 at 19:31 Heinrich Zimmermann 11

2

5

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4

answers

428

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How is the path integral for light explained, or how does it arise?

quantum-electrodynamics

jun 10 '11 at 22:09 user1631 3,483

1

5

votes

3

answers

286

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Is this algorithm for simulating a quantum computer accurate?

quantum-mechanics

jun 12 '11 at 23:08 Peter Shor 4,245

3

5

votes

3

answers

389

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twistor-spacetime correspondence

twistor minkowski-space

feb 7 '11 at 15:41 Roy Simpson 3,065

1

4

votes

2

answers

153

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Does the Casimir effect allow to change the lifetime of a radiating atom?

quantum-mechanics quantum-optics quantum-electrodynamics cavity-qed

apr 17 '11 at 5:09 lurscher 4,287

6

4

votes

6

answers

972

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Is there a direct physical interpretation for the quantum mechanical wavefunction?

quantum-mechanics

dec 5 '11 at 22:07 joseph f. johnson 1,928

2

4

votes

4

answers

383

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References for conceptual issues in Quantum Field Theory

quantum-mechanics quantum-field-theory books reference-request gauge-theory

oct 14 '11 at 19:15 Peter Morgan 5,625

1

4

votes

2

answers

592

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What's the relation between virtual photons and electromagnetic potentials?

electromagnetism quantum-field-theory quantum-electrodynamics virtual-photons

oct 13 '11 at 5:40 Ron Maimon 44.8k

Bjorn Wesen

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