Quantum Physics Forum

Post thread
Join in expert discussion on quantum physics. Quantum physics is the mathematical description of the motion and interaction of subatomic particles. Quantum Mechanics and Field Theory.

Quantum Interpretations and Foundations

Graduate Universal quantum physics
Graduate Where Do Photons Come From and How Do They Embrace Wave-Particle Duality?
  • · Replies 10 ·
Replies
10
Views
4K
Graduate How does a wave function collapse?
  • · Replies 8 ·
Replies
8
Views
6K
Graduate Is There a Quantum Approach to Understanding Latent Heat?
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Path integral formulation of non-relativistic quantum mechanics
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Uncertainty principle with/out detectors
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Why Is the LSZ Formula Overlooked in Some QFT Texts?
  • · Replies 7 ·
Replies
7
Views
9K
Graduate What's wrong with this FTL experiment?
  • · Replies 19 ·
Replies
19
Views
4K
Graduate Why is there no constant magnetic dipole-dipole interaction?
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Understanding Destructive Interference in Electron Wave Functions
  • · Replies 6 ·
Replies
6
Views
4K
Graduate Feynman rules (vertecies) for graviton
  • · Replies 7 ·
Replies
7
Views
7K
Graduate Hg vapor energy levels & Frank-Hertz experiment
  • · Replies 12 ·
Replies
12
Views
10K
Graduate When Were Anomalous Correlations in Entangled Photons First Observed?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Bohr Model Postulates: Understand Discrete Angular Momentum Orbits
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Why the minima of potential of classical Lagrangian called ''vacuum expectation''?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Range of Different Photoelectron Kinetic Energies?: Photoelectric Effect
  • · Replies 7 ·
Replies
7
Views
22K
Graduate QM Definition of Center of Mass
  • · Replies 5 ·
Replies
5
Views
4K
Graduate Bell tests: Singlet vs Triplet State
  • · Replies 2 ·
Replies
2
Views
6K
Graduate Finite-Temperature Schrödinger's equation
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Time Independent Schrödinger equation.
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Decoherence, Coherence, Pure State, Mixed State
  • · Replies 44 ·
2
Replies
44
Views
11K
Graduate About Gauge invariance - again
  • · Replies 7 ·
Replies
7
Views
3K
Graduate Uncertainty Principle and Particle Calculation in the Past
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Why are energy eigenstates considered wavefunctions in quantum mechanics?
  • · Replies 7 ·
Replies
7
Views
8K
Graduate Where do the extra particles go
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Non-Perturbative QFT without Virtual Particles
  • · Replies 103 ·
4
Replies
103
Views
18K
Graduate Is time reversal broken in an atom with nonzero magnetic moment?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Are Fermions and Bosons Responsible for the Force Behind a Punch?
  • · Replies 5 ·
Replies
5
Views
2K
Graduate Quantum theory has affected technological advances?
  • · Replies 10 ·
Replies
10
Views
4K
Graduate Question about uncertainty princple?
  • · Replies 6 ·
Replies
6
Views
2K
Graduate Solving the Schrodinger equation
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Quantum mechanics ground state
  • · Replies 6 ·
Replies
6
Views
11K
Graduate Understanding London Dispersion Force: Theoretical Derivation Explained
  • · Replies 3 ·
Replies
3
Views
4K
Graduate [Novice] Feynman Diagram for Electron Excitation
  • · Replies 16 ·
Replies
16
Views
7K
Graduate Far-apart double slit experiment
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Checking if Three Operators Form a 3-Vector with SO(3) Commutation Relations
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Sign of the gyromagnetic ratio
  • · Replies 2 ·
Replies
2
Views
6K
Graduate Bell violation with extra particles
  • · Replies 5 ·
Replies
5
Views
2K
Graduate Some lines are called resonant
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Photon vs the electric field E and magnetic field B
  • · Replies 6 ·
Replies
6
Views
4K
Graduate Why we know the renormalization work to all order in renormalizable theory?
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Why do bosons prefer to occupy the same ground state?
  • · Replies 10 ·
Replies
10
Views
6K
Graduate Renormalization as a dielectric
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Laser Light & HUP: Understanding How Position & Momentum Affect Each Other
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Can someone explain, simply, hidden nonlocality/locality? EPR Paradox?
  • · Replies 23 ·
Replies
23
Views
6K
Graduate What is the significance of the Klein Paradox in particle physics?
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Average of momentum for stationary state
  • · Replies 5 ·
Replies
5
Views
3K
Graduate Weight diagrams and Lie algebras
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Why isn't commutation transitive?
  • · Replies 4 ·
Replies
4
Views
5K
Graduate Wavevector in infinite square well
  • · Replies 4 ·
Replies
4
Views
2K
Graduate [Novice] Young's Double Slit Experiment and the Quantum Cult
  • · Replies 1 ·
Replies
1
Views
2K
Graduate 1st to 2nd quantization, potential approximates interactions?
  • · Replies 12 ·
Replies
12
Views
3K
Undergrad Probability density of photons
  • · Replies 17 ·
Replies
17
Views
5K
Graduate What Determines the Equilibrium Separation Between Atoms in a Lattice?
  • · Replies 3 ·
Replies
3
Views
4K
Graduate Bell's Theorem, EPRB, QM, spin-1/2 particles, basic arithmetic: In reply
  • · Replies 21 ·
Replies
21
Views
6K
Graduate How can polarisation by angle 45 degrees be represented in quantum mechanics?
  • · Replies 12 ·
Replies
12
Views
3K
Graduate Role of particle's diameter in Quantum Mechanics
  • · Replies 7 ·
Replies
7
Views
3K
Graduate What Happens to Wave-Particles During Wavefunction Collapse?
  • · Replies 7 ·
Replies
7
Views
3K
Graduate Polarizability and permittivity
  • · Replies 3 ·
Replies
3
Views
3K
High School Can Earth's Electromagnetic field block asteroids?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate What Are Clebsch Gordan Coordinates in Quantum Mechanics?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Particle in abox : continuous functions problem
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Quantum fluctuations and Inflation
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Buckyball Double Slit Experiment
  • · Replies 22 ·
Replies
22
Views
27K
Graduate Idler behavior post signal detection in DCQE
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Bell's theorem and the DrChinese Challenge?
  • · Replies 16 ·
Replies
16
Views
5K
Graduate Pure State without Superposition possible?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad What Causes Electrons to Emit Light?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate How to reach the conclusion that L=0 and S=0 if the shell is filled?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate What Are Commutators and Their Role in Quantum Mechanics?
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Review Articles Bell Test experiments
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Understanding Atom-Photon Interaction: How Long Will an Electron Hold Energy?
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Can the Lippmann-Schwinger equation be integrated over negative r values?
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Are Chemical Reactions Quantumly Indeterminate?
  • · Replies 7 ·
Replies
7
Views
3K
Graduate Why dont the quarks in neutrons annhialate?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Speed of free electrons in vacuum, plasma and superconductors?
  • · Replies 15 ·
Replies
15
Views
15K
Graduate Electron diffraction from crystals
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Why Is It Called Space Quantization in Quantum Mechanics?
  • · Replies 13 ·
Replies
13
Views
18K
Graduate Stochastics mechanics and early Universe
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Understanding 2nd Order Correlation in Fock States and Density Functions
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Understanding the Energy Differences: Rigid Rotors vs. Harmonic Oscillators
  • · Replies 3 ·
Replies
3
Views
3K
Undergrad Understanding the Significance of 'Square' in Quantum Mechanics Potentials
  • · Replies 6 ·
Replies
6
Views
4K
Graduate Why 2-point correlation function diagram have only two external legs?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Understanding Quantized Conductance in Nano-sized Objects
  • · Replies 1 ·
Replies
1
Views
2K
Graduate What is Wavefunction Normalization?
  • · Replies 6 ·
Replies
6
Views
4K
Graduate Find Complex Conjugate of Wave Function in QM Mechanics Book
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Even Real Particles don't exist Aage Bohr
  • · Replies 68 ·
3
Replies
68
Views
15K
Graduate Conceptual question on wave-particle duality (electron microscope)
  • · Replies 5 ·
Replies
5
Views
4K
Graduate Double-Slit Experiment and Michelson Interferometer
  • · Replies 1 ·
Replies
1
Views
4K
Graduate Absorbtion lines in spectrum question
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad What is a perturbation and how does it affect a system in equilibrium?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Balancing Objects: Quantum Rod, Tipping Rod & Quantum Pencil
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Schrodinger Equation : Infinite Square Well
  • · Replies 5 ·
Replies
5
Views
7K
Graduate How Does Antisymmetry Define Electron States in Quantum Chemistry?
  • · Replies 5 ·
Replies
5
Views
2K
Graduate Sakurai's proof of the Optical Theorem
  • · Replies 4 ·
Replies
4
Views
6K
Graduate Bell's theorem and QM: Peres' conclusion and terminology?
  • · Replies 3 ·
Replies
3
Views
4K
Graduate Loop corrections to the propagator
  • · Replies 6 ·
Replies
6
Views
4K
Graduate QED Predictions of fine structure constant and g-factor
  • · Replies 1 ·
Replies
1
Views
2K
High School Ionization energy of electrons?
  • · Replies 6 ·
Replies
6
Views
6K
Graduate Explicit form for representing two spin 1/2 system
  • · Replies 1 ·
Replies
1
Views
2K
Graduate What's wrong with this local realistic counter-example to Bell's theorem?
  • · Replies 177 ·
6
Replies
177
Views
30K