Quantum Interpretations and Foundations Forum

Join discussion regarding the different quantum interpretations and foundations. These discussions present some unique challenges since they deal with matters for which there is not an established "right" answer.

Threads

Undergrad Superposition status in the different interpretations.

  • ftr
  • · Replies 1 ·
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1

Undergrad Do collapse interpretations respect conservation laws?

  • greypilgrim
  • · Replies 7 ·
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7

Undergrad Bohm guiding field, electrons in a semiconductor "box"

  • Spinnor
  • · Replies 1 ·
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1

Undergrad Photon Double Slit Experiment: Visualizing the Guiding Field

  • Spinnor
  • · Replies 2 ·
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2

Undergrad How to derive Born's rule for arbitrary observables from Bohmian mechanics?

  • A. Neumaier
  • · Replies 165 ·
6
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165

Graduate Is theory of measurement an oxymoron?

  • Demystifier
  • · Replies 33 ·
2
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33

Graduate Many worlds vs modalism: do all quantum branches happen or only likely ones?

  • Quanundrum
  • · Replies 49 ·
2
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49

Undergrad What is the POVM generalization of Born's rule for quantum measurements?

  • A. Neumaier
  • · Replies 48 ·
2
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48

Graduate Schrodinger's Cat and The Universe

  • entropy2information
  • · Replies 76 ·
3
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76

Undergrad New interpretation of quantum mechanics

  • billllib
  • · Replies 8 ·
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8

Undergrad On the relation between physics and philosophy

  • A. Neumaier
  • · Replies 204 ·
7
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204

Graduate The ontology problem of thermal interpretation

  • Demystifier
  • · Replies 6 ·
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6

Graduate Is anything possible in the many worlds interpretation?

  • IvicaPhysics
  • · Replies 12 ·
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12

Undergrad Did Schrödinger himself take his "Cat Experiment" seriously?

  • Suekdccia
  • · Replies 11 ·
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11

Undergrad Can stochastic optimization derive quantum mechanics from spacetime?

  • fresh_42
  • · Replies 2 ·
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2

Graduate What is von Neumann's branching of possible worlds?

  • Suekdccia
  • · Replies 3 ·
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3

Undergrad Questions about QFT and the reality of subatomic particles

  • Quantum Alchemy
  • · Replies 6 ·
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6

Undergrad Questions on the Bohmian mechanics interpretation for instrumentalists

  • kurt101
  • · Replies 13 ·
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13

Undergrad Does MWI Agree on Measurement Apparatus Pointer?

  • entropy1
  • · Replies 18 ·
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18

Undergrad Did de Broglie contribute later to pilot wave theory?

  • Minnesota Joe
  • · Replies 5 ·
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5

Graduate The Combination Of Philosophy And Quantum Physics

  • Chris Nimmons
  • · Replies 3 ·
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3

Undergrad Bohmian mechanics and special relativity

  • kurt101
  • · Replies 37 ·
2
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37

Graduate Is the past in MWI unambiguous?

  • entropy1
  • · Replies 20 ·
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20

Undergrad Is Entanglement Properly Defined in Bohr's Idea of Complementarity?

  • bhobba
  • · Replies 52 ·
2
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52

Undergrad Macroscopicity and the measurement problem

  • EPR
  • · Replies 29 ·
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29

Graduate Does QED Originate from Non-Relativistic Systems?

  • A. Neumaier
  • · Replies 185 ·
7
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185

Graduate When does the wavefunction wavelength equal the De Broglie wavelength?

  • etotheipi
  • · Replies 2 ·
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2

Undergrad Double slit mystery in relation to holography and the single slit?

  • Zelebg
  • · Replies 43 ·
2
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43

Undergrad Does MWI require multiple real worlds or just multiple possible worlds?

  • entropy1
  • · Replies 25 ·
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25

Undergrad Thermal interpretation and EPR experiment

  • kurt101
  • · Replies 1 ·
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1

Undergrad Superposition of branches in MWI

  • entropy1
  • · Replies 2 ·
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2

Undergrad Can we accurately determine the trajectory of an electron using a SG detector?

  • entropy1
  • · Replies 3 ·
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3

Undergrad Why many worlds interpretation seems to require infinite universes

  • Jmacquar
  • · Replies 2 ·
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2

Undergrad A Copenhagen solution of the black hole singularity problem

  • Demystifier
  • · Replies 8 ·
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8

Graduate Why are the quantum fields considered ontological?

  • ilper
  • · Replies 18 ·
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18

Undergrad New review on decoherence by Schlosshauer

  • A. Neumaier
  • · Replies 2 ·
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2

Undergrad Interpretations of QM vs. statistical physics as an "interpretation"?

  • Aidyan
  • · Replies 9 ·
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9

Undergrad Can MWI allow worlds where MWI itself doesn't apply?

  • WWGD
  • · Replies 12 ·
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12

Graduate How does the thermal interpretation explain Stern-Gerlach?

  • PeterDonis
  • · Replies 94 ·
4
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94

Undergrad Do observers create universes for every possible outcome in many worlds?

  • Quantum Alchemy
  • · Replies 18 ·
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18

Undergrad Why can't there be a Universal Interpretation of Quantum Mechanics?

  • Quantum Alchemy
  • · Replies 14 ·
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14

Undergrad How does Classical Physics explain Quantum Entanglement?

  • Quantum Alchemy
  • · Replies 5 ·
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5

Undergrad Consistency of Bohmian mechanics

  • Thors10
  • · Replies 92 ·
4
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92

Graduate Many Worlds and the Measurement of an Electron

  • PhyCurious
  • · Replies 4 ·
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4

Undergrad Does the superposition have a weight?

  • timmdeeg
  • · Replies 13 ·
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13

Undergrad Does EPR definitely rule out locality?

  • greypilgrim
  • · Replies 17 ·
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17

Undergrad Orthogonal eigenvectors and measurement

  • entropy1
  • · Replies 10 ·
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10

Against "interpretation" - Comments

  • Demystifier
  • · Replies 343 ·
12
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343

Undergrad Danger for the Many-Worlds Interpretation?

  • timmdeeg
  • · Replies 313 ·
11
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313

Graduate Many worlds, observer and Entropy

  • Hawzhin Blanca
  • · Replies 3 ·
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3

Undergrad Can we copy information using reversible operations?

  • zonde
  • · Replies 1 ·
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1

Graduate Is the Quantum/Classical Boundary the most important question in Physics?

  • Quantum Alchemy
  • · Replies 135 ·
5
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135

Undergrad Have We Got What Bohr Thought Wrong

  • bhobba
  • · Replies 2 ·
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2

Undergrad Is Einstein Causality Proven in Preferred Frame SR?

  • entropy1
  • · Replies 35 ·
2
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35

Graduate Why didn't radioactive decay probabilities cause the same uproar as QM

  • BruteForce1
  • · Replies 50 ·
2
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50

Graduate Counterfactual Definiteness and MWI in Wiki

  • TunnelingthuWorlds
  • · Replies 21 ·
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21

Undergrad Is QM Deterministic in MWI and Time Reversible?

  • entropy1
  • · Replies 34 ·
2
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34

Graduate Is wave collapse the same as a matter field state change?

  • physical
  • · Replies 11 ·
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11

Graduate Does Bricmont-Goldstein-Hemmick's theorem prove QM must be nonlocal?

  • Demystifier
  • · Replies 226 ·
8
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226

Insights What Are Bell States and Their Role in Spin Angular Momentum Conservation?

  • RUTA
  • · Replies 0 ·
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0

Undergrad What exactly is Weizsäcker's ur-alternatives theory?

  • Suekdccia
  • · Replies 7 ·
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7

Undergrad Sean Carroll podcast on many worlds interpretation

  • pinball1970
  • · Replies 120 ·
5
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120

Undergrad Do Hidden Variables include sub-structures?

  • hwpage
  • · Replies 50 ·
2
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50

Undergrad Necessity of Complex Numbers in Quantum Mechanics

  • fresh_42
  • · Replies 33 ·
2
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33

Graduate Authorities in Science: High Reputation Journals and Books

  • A. Neumaier
  • · Replies 43 ·
2
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43

Undergrad What did Omnès mean with this?

  • Suekdccia
  • · Replies 2 ·
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2

Undergrad A simple explanation of the Born rule?

  • jcap
  • · Replies 13 ·
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13

Graduate Does the many-worlds interpretation allow infinite nested universes at different scales?

  • BrettSinclair
  • · Replies 2 ·
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2

Undergrad Thermal interpretation and Bell's inequality

  • N88
  • · Replies 63 ·
3
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63

Undergrad Questions about ensemble interpretation of QM

  • soothsayer
  • · Replies 3 ·
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3

Undergrad More on the thermal interpretation

  • A. Neumaier
  • · Replies 24 ·
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24

Undergrad Does a measurement setup determine the reality of spin measurement outcomes?

  • entropy1
  • · Replies 225 ·
8
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225

Graduate Weinberg on the measurement problem

  • A. Neumaier
  • · Replies 61 ·
3
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61

Undergrad Polarization in Bohmian mechanics

  • A. Neumaier
  • · Replies 39 ·
2
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39

Graduate The thermal interpretation and measurement

  • vanhees71
  • · Replies 17 ·
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17

Graduate Improbability of the Many-Worlds Interpretation?

  • CynicusRex
  • · Replies 94 ·
4
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94

Undergrad A variation of the Multiple World Interpretation

  • Buzz Bloom
  • · Replies 3 ·
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3

Graduate Bohmian mechanics for instrumentalists and quantum measurement

  • microsansfil
  • · Replies 16 ·
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16

Graduate Wigner's Friend and Incompatibility

  • DarMM
  • · Replies 59 ·
2
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59

Undergrad Quantum Correlations without Many Worlds or Determinism

  • msumm21
  • · Replies 14 ·
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14

Graduate Does Feynman's path integral ignore alternative histories?

  • Suekdccia
  • · Replies 1 ·
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1

Graduate Does Bohmian mechanics imply the existence of parallel universes?

  • Suekdccia
  • · Replies 13 ·
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13

Graduate A Realization of a Basic Wigner's Friend Type Experiment

  • PeterDonis
  • · Replies 237 ·
8
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237

Undergrad "Knowledge" in Psi-Epistemic Interpretation Fundamental or Emergent?

  • lucas_
  • · Replies 3 ·
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3

Undergrad What is really that density matrix in QM?

  • Jamister
  • · Replies 127 ·
5
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127

Undergrad Why randomness means incomplete understanding

  • A. Neumaier
  • · Replies 106 ·
4
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106

Graduate Is the concept of "wave function collapse" obsolete?

  • Sophrosyne
  • · Replies 137 ·
5
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137

Graduate Could MWI create universes with fundamentally different physical laws?

  • Suekdccia
  • · Replies 51 ·
2
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51

Undergrad Can the Many Worlds interpretation state the Born Rule as a postulate?

  • JG11
  • · Replies 8 ·
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8

Graduate Born's rule for the QED electron violates causality

  • A. Neumaier
  • · Replies 11 ·
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11

Undergrad What does it mean for QM to describe the real world?

  • timmdeeg
  • · Replies 168 ·
6
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168

Undergrad Confusion about the thermal interpretation's account of measurement

  • nicf
  • · Replies 72 ·
3
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72

Undergrad Numerical simulations in Bohmian mechanics

  • A. Neumaier
  • · Replies 3 ·
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3

Undergrad A new insight from the Frauchiger and Renner paper affecting MWI

  • Quanundrum
  • · Replies 27 ·
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27

Graduate Soft photons and the ETH interpretation of QM

  • DrDu
  • · Replies 3 ·
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3

Undergrad How does QBism differ from Copenhagen interpretation?

  • msumm21
  • · Replies 11 ·
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11

Undergrad Quantum Interpretations of this optical effect

  • andresB
  • · Replies 5 ·
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5

Undergrad MWI -- Infinite number of worlds?

  • entropy1
  • · Replies 33 ·
2
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33

Graduate How momentum measurement is defined in Pilot Wave interpretation?

  • MichPod
  • · Replies 3 ·
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3

Undergrad Interpretation of QM in the Heisenberg Picture

  • Federation 2005
  • · Replies 34 ·
2
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34