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Quantum Interpretations and Foundations

How valid is the indivisible interpretation of quantum mechanics?
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Graduate How valid is the indivisible interpretation of quantum mechanics?
Undergrad Wave function for a helium atom
  • olgerm
  • · Replies 19 ·
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Undergrad Parity and Interactions: Misreading or Misunderstanding?
  • KevinMcHugh
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Graduate Fock spaces and inequivalent ccr representations
  • Heidi
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5
Graduate Overlap of nth QHO excited state and momentum-shifted QHO ground state
  • HBHSU
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Undergrad Giving mass to other particles?
  • Xforce
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4
Undergrad Calculating a particular amplitude with Feynman diagrams
  • Ringo Hendrix
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2
Graduate Difference between russel-saunders-coupling and spin-orbit-coupling
  • JanSpintronics
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3
Undergrad Time Delay Information Transfer with Entangled Particles
  • jackmiller2003
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10
Undergrad Energy at classically forbiden positions
  • DaTario
  • · Replies 26 ·
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26
Undergrad Observation = interaction, question from a dummy
  • CuriousCop
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10
Undergrad Raising and Lowering Operators
  • aliens123
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2
High School Is it true that QED explains the reflection of light?
  • fbs7
  • · Replies 14 ·
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14
Undergrad Could the Discovery of the Graviton Connect Quantum and Classical Physics?
  • Physics4Eva
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2
Undergrad When can the Klein-Gordon Equation be used for a photon?
  • LarryS
  • · Replies 11 ·
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11
Undergrad Entanglement/correlations in time
  • WWCY
  • · Replies 1 ·
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1
Graduate Measurements and electroweak gauge invariance/transformations
  • Michael Price
  • · Replies 2 ·
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2
Graduate What is the solution for two electrons on a sphere?
  • bob012345
  • · Replies 50 ·
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High School Photons as bullets at 10 trillion FPS (frames per second)
  • EPR
  • · Replies 14 ·
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14
Graduate Canonical quantization of Electrodynamics: physical intuition ?
  • maajdl
  • · Replies 3 ·
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3
High School Can a wavelength be smaller than a Planck length?
  • sqljunkey
  • · Replies 7 ·
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7
High School Photon Continuity in Double-Slit Experiment
  • jeremyfiennes
  • · Replies 80 ·
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High School Is the Velocity of Electron Spin Calculable Using Classical Models?
  • Dilema
  • · Replies 14 ·
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14
Undergrad It seems QFT and QM contradict with each other?
  • fxdung
  • · Replies 15 ·
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15
Graduate Increase of coherent length in stimulated emission
  • DaTario
  • · Replies 19 ·
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19
Undergrad How Peskin & Schroeder simplified this horrible product of bilinears?
  • hamad12a
  • · Replies 5 ·
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5
High School Can entangled particle pairs be measured at the same time?
  • Quantum Alchemy
  • · Replies 15 ·
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15
Undergrad Why is the position of a massive particle not blurred?
  • fxdung
  • · Replies 9 ·
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9
Undergrad Why is position just a label in QFT?
  • LarryS
  • · Replies 6 ·
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6
Undergrad Bracket VS wavefunction notation in QM
  • olgerm
  • · Replies 82 ·
3
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Graduate Conservation of Quantum Information
  • nateHI
  • · Replies 26 ·
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26
Undergrad How to calculate the Lamb Shift in Hydrogen?
  • zincshow
  • · Replies 1 ·
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1
High School Is Human Height Ever Exactly Pi Feet?
  • batmelon
  • · Replies 5 ·
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5
Undergrad A little help with a two particle Hamiltonian
  • LeeT
  • · Replies 1 ·
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1
Undergrad Two Photon Sagnac Source
  • Erik Ayer
  • · Replies 5 ·
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5
Undergrad Mach-Zender-Interferometer with polarizers
  • Sonderval
  • · Replies 8 ·
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8
Undergrad Notion of a "clock" in Quantum Mechanics
  • WWCY
  • · Replies 4 ·
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4
Graduate How do entanglement experiments benefit from QFT (over QM)?
  • DrChinese
  • · Replies 473 ·
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Undergrad Why is a resonant frequency assumed in blackbody radiation?
  • kelly0303
  • · Replies 8 ·
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8
Graduate Extra terms in the Action in Zee chapter 1.3?
  • looseleaf
  • · Replies 2 ·
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2
Undergrad Why simultaneous detection of wave and particle nature is not possible
  • Ablaze_
  • · Replies 8 ·
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8
Undergrad Why does the square of the amplitude of a wave function represent P?
  • Haynes Kwon
  • · Replies 3 ·
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3
High School Does a field's vacuum density violate conservation of energy?
  • TheQuestionGuy14
  • · Replies 29 ·
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29
Undergrad Conservation of energy and measurement problem
  • entropy1
  • · Replies 3 ·
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3
High School How to obtain state vector for polarised light
  • etotheipi
  • · Replies 6 ·
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6
Undergrad Complementarity Of One- And Two-Particle Interference
  • Erik Ayer
  • · Replies 2 ·
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2
Undergrad How to get the wavefunction of a single particle in QFT?
  • DoobleD
  • · Replies 2 ·
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2
Undergrad Dark Matter and quantum observable
  • new6ton
  • · Replies 1 ·
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1
High School Classical physics vs quantum physics
  • new6ton
  • · Replies 21 ·
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21
Undergrad Wave function of a scattered particle and cross section
  • dRic2
  • · Replies 8 ·
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8
Graduate Do the time and normal ordering operators commute?
  • QFT1995
  • · Replies 11 ·
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11
Graduate Gauge breaking and Faddeev-Popov ghost particles
  • Michael Price
  • · Replies 46 ·
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46
Undergrad Does downconversion cause pump photon wavefunction collapse?
  • Erik Ayer
  • · Replies 8 ·
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8
Graduate What is the explanation behind loops as O(h) corrections in tree level diagrams?
  • PGaccount
  • · Replies 2 ·
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2
Undergrad Physical Meaning of a Quantum Field
  • Bobjoesmith
  • · Replies 5 ·
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5
Undergrad Can a 4x4 matrix act on a 2x2 matrix in a specific way?
  • Replusz
  • · Replies 4 ·
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4
Graduate Bosonic Field operator in this exponential
  • QFT1995
  • · Replies 2 ·
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2
Undergrad Bohr model for electron energy states
  • Iceking20
  • · Replies 4 ·
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4
High School Quantum Gravity and Special Relativity
  • Meruem
  • · Replies 2 ·
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2
High School Interaction of light with atoms
  • jeremyfiennes
  • · Replies 9 ·
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9
Undergrad How does the expectation value of the spin operator evolve over time?
  • Garlic
  • · Replies 3 ·
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3
Undergrad Quantum states: only vectors?
  • nomadreid
  • · Replies 6 ·
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6
Graduate Theoretical status of the Landauer Principle
  • Prathyush
  • · Replies 12 ·
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12
Graduate Why are most molecules in the singlet state instead of the triplet state?
  • hariharan venkatasu
  • · Replies 4 ·
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4
Undergrad Can two particles be in the same place at the same time?
  • JamesN
  • · Replies 2 ·
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2
Undergrad "Dumb" question : is there an upper bound on the energy of a photon?
  • s00mb
  • · Replies 3 ·
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3
High School Is quantum entanglement a four dimensional force?
  • Meruem
  • · Replies 5 ·
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5
Undergrad What happens to an electron's frequency during absorption of a photon?
  • Iceking20
  • · Replies 4 ·
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4
Graduate Derivative of a Lorentz-Transformed Field
  • looseleaf
  • · Replies 2 ·
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2
Undergrad Rydberg Equation: Physics and Beyond
  • Iceking20
  • · Replies 5 ·
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5
High School Do electrons accelerate when transitioning from one energy state to another?
  • Iceking20
  • · Replies 34 ·
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34
Graduate Can Work Be Defined for a Quantum System with a Time-Dependent Hamiltonian?
  • Prathyush
  • · Replies 11 ·
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11
Undergrad Solving a quantum harmonic oscillator using quasi momentum
  • Prathyush
  • · Replies 1 ·
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1
Graduate Correlation functions of quantum Ising model
  • Danny Boy
  • · Replies 1 ·
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1
High School Quantum radar and its implications
  • GTOM
  • · Replies 3 ·
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3
Undergrad Schrodinger equation for a free particle in 3d space
  • GeolPhysics
  • · Replies 6 ·
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6
Undergrad Runaway Solutions: Unstable System Implications
  • srallaba
  • · Replies 10 ·
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10
Graduate Understanding a sequence in P&S
  • looseleaf
  • · Replies 16 ·
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16
Undergrad Am I crazy or is my book wrong?
  • yjl
  • · Replies 5 ·
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5
Undergrad What would happen if wavelength could go higher than gamma rays
  • Iceking20
  • · Replies 8 ·
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8
Undergrad Attractive van der Waals force between similar atoms/molecules
  • Swamp Thing
  • · Replies 10 ·
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10
Undergrad Who did this experiment with photons?
  • vohongsinh164
  • · Replies 3 ·
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3
Undergrad Why does quantum mechanics believe that gravity is a field?
  • Michael Barry
  • · Replies 10 ·
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10
Undergrad What Is the Origin of Unruh Temperature and Its Implications?
  • PGaccount
  • · Replies 13 ·
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13
Undergrad Quantum field theory: an informative approach
  • gtorassa
  • · Replies 5 ·
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5
High School How Are 2D Standing Waves Extended to 3D in Quantum Mechanics?
  • etotheipi
  • · Replies 1 ·
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1
High School Gram-Schimidt orthonormalization for three eigenvectors
  • Wrichik Basu
  • · Replies 7 ·
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7
Undergrad Question about the quantum harmonic oscillator
  • Garlic
  • · Replies 7 ·
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7
Undergrad How Does a Photon Know Which Slit to Pass Through in a Double Slit Experiment?
  • entropy1
  • · Replies 5 ·
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5
Undergrad Identify the charge and strangeness of particle Y
  • pkc111
  • · Replies 2 ·
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2
High School Why do photons only interact with charged particles?
  • jeremyfiennes
  • · Replies 20 ·
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20
Graduate Regarding Coleman's Sine-Gordon Duality
  • QFT1995
  • · Replies 3 ·
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3
Graduate Bosonization Formula and its Effects on Fermion Number
  • Demystifier
  • · Replies 5 ·
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5
Graduate Relation between spin dephasing time T2* and spin relaxation time
  • rafaelg7
  • · Replies 2 ·
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2
Undergrad Delayed-choice quantum eraser experiment
  • gtorassa
  • · Replies 6 ·
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6
High School Can someone help me understand as well as validate this article
  • HankDorsett
  • · Replies 7 ·
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7
Undergrad Heavier bosons and their function and detection
  • Ranku
  • · Replies 5 ·
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5
Graduate Can decoherence be associated with heat generation?
  • Prathyush
  • · Replies 6 ·
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6
Undergrad Is Quantum Mechanics Truly Time-Reversal Symmetric?
  • WWCY
  • · Replies 5 ·
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5
Undergrad Is the product of two hermitian matrices always hermitian?
  • Happiness
  • · Replies 93 ·
4
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93
High School Understanding Virtual Particles: Speed and Rest Mass
  • Ranku
  • · Replies 20 ·
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20