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 Sidney Coleman's opinion on interpretation in his Dirac lecture
Graduate An irreducible representation of
  • · Replies 4 ·
Replies
4
Views
9K
Graduate Momentum Eigenstates in 1D Infinite Square Well
  • · Replies 3 ·
Replies
3
Views
8K
High School Movement of Electrons: Spin or Orbit?
  • · Replies 17 ·
Replies
17
Views
10K
Graduate Quantum Mechanics and Relativity.
  • · Replies 2 ·
Replies
2
Views
3K
Graduate What Does "Size" Mean for Electrons and Protons?
  • · Replies 12 ·
Replies
12
Views
6K
Graduate Numerical calculation of tunneling probability
  • · Replies 1 ·
Replies
1
Views
4K
Graduate Does Natural Hydrogen Exist in a Stable Ground State?
  • · Replies 6 ·
Replies
6
Views
2K
Graduate What does this state collapse into after the measurement?
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Has FTL communication really never been tested in this way?
  • · Replies 39 ·
2
Replies
39
Views
6K
Graduate How Does Angular Dependence Arise in a Spherical Symmetric Potential?
  • · Replies 2 ·
Replies
2
Views
5K
Graduate Logical Rational for spooky-action @ at distance
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Electronic structure of the atoms
  • · Replies 5 ·
Replies
5
Views
4K
Graduate Advice for High School Student's Quantum Mechanics Assignment
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Understanding Bell's Inequality & Theorem
  • · Replies 5 ·
Replies
5
Views
7K
Graduate One Photon from coil and battery
  • · Replies 8 ·
Replies
8
Views
3K
Graduate Exchange of photons/virtual photons and electrostatic or EM force
  • · Replies 19 ·
Replies
19
Views
7K
Graduate Physical meaning for wavefunction
  • · Replies 4 ·
Replies
4
Views
7K
Graduate Compton Scattering from bound electrons
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Massive boson propagator - problem with step in derivation
  • · Replies 4 ·
Replies
4
Views
4K
Graduate Periodic Potential: Diff. Eq. Solutions
  • · Replies 6 ·
Replies
6
Views
6K
Graduate How Are the Failures of Equipartition Theory Linked to Quantum Mechanics?
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Neutrinos going through neuclei?
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Is the Many Minds Interpretation of Quantum Mechanics Widely Accepted?
  • · Replies 7 ·
Replies
7
Views
3K
Graduate Angular Momentum Expectation Values help for noobie
  • · Replies 1 ·
Replies
1
Views
4K
Graduate Why Does the First Order Term in QED Scattering Matrix Give No Contribution?
  • · Replies 3 ·
Replies
3
Views
4K
Graduate Can a Quantum Computer Solve NP-Hard Problems in Infinite Parallel Computing?
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Integrating over all possible fields
  • · Replies 4 ·
Replies
4
Views
3K
Graduate The dimension of the fine structure constant
  • · Replies 9 ·
Replies
9
Views
6K
Graduate Which QM formalism is the most useful for understanding research papers?
  • · Replies 7 ·
Replies
7
Views
3K
Graduate How Instantaneous is Quantum Entanglement?
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Fermion Contraction: Peskin & Shroeder Pg 63
  • · Replies 5 ·
Replies
5
Views
6K
Undergrad Teleportation & EPR: Learn Basics & Get Readings on Paradox
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Why does Lorentz Force law work?
  • · Replies 9 ·
Replies
9
Views
5K
Graduate Does Compton Effect Formula Follow Original Derivation?
  • · Replies 3 ·
Replies
3
Views
4K
Graduate Can Quantum Interference Be Explained Solely by Self-Interaction of Photons?
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Density matrix off diagonal terms - what do they mean?
  • · Replies 2 ·
Replies
2
Views
20K
Graduate Can I Predict the Lottery Draw Without Affecting the Universe's Wavefunction?
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Can You Generate Feynman Diagrams for Specific Perturbation Orders?
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Quantum Foam: Exploring the Gravitational Effects of Virtual Particles in Space
  • · Replies 8 ·
Replies
8
Views
4K
Bizarre theory-Could there be any truth in this?
  • · Replies 6 ·
Replies
6
Views
4K
Graduate Matrix of angular momentum operator
  • · Replies 4 ·
Replies
4
Views
11K
Graduate Can measuring certain operators in a quantum system have deadly consequences?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Cell Phones & Cancer: Examining Interaction Mechanisms
  • · Replies 10 ·
Replies
10
Views
4K
Graduate Permutation Operator: Understanding & Application
  • · Replies 2 ·
Replies
2
Views
6K
Graduate Creating Electrons: A Question from Feyman
  • · Replies 4 ·
Replies
4
Views
2K
Graduate What happens when we measure H_x in an infinit potential well?
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Does this soda can anti-gravity trick have any validity?
  • · Replies 3 ·
Replies
3
Views
5K
Undergrad Question: Why Quantum Computing Uses 1 & 0?
  • · Replies 6 ·
Replies
6
Views
2K
Graduate Artificial atoms used to improve compact discs?
  • · Replies 5 ·
Replies
5
Views
5K
Graduate In QM operators, why [YPz,YPx]=0, [ZPy,ZPy]=0 [X,Py]=0 [Y,Pz]=0, etc
  • · Replies 10 ·
Replies
10
Views
4K
Graduate Time-dep perturbation theory
  • · Replies 1 ·
Replies
1
Views
3K
Graduate How to work in the momentum representation?
  • · Replies 6 ·
Replies
6
Views
9K
Graduate Testing Hermiticity: How to Prove it?
  • · Replies 2 ·
Replies
2
Views
4K
Graduate Virtual Photons as Force Carriers
  • · Replies 26 ·
Replies
26
Views
8K
Graduate Quantum physics with Green's functions
  • · Replies 3 ·
Replies
3
Views
4K
Graduate Can a Quantum State Have Time-Dependent Eigenvalues?
  • · Replies 1 ·
Replies
1
Views
6K
Graduate System of hydrogen atoms in an electric field
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Why are particles in quantum field theory discrete?
  • · Replies 24 ·
Replies
24
Views
4K
Graduate Why does spin 0 have to be a true scalar?
  • · Replies 28 ·
Replies
28
Views
17K
Graduate Four-Photon Entanglement: Is a "Pure" State Possible?
  • · Replies 16 ·
Replies
16
Views
6K
Graduate Does the Four Fermion Interaction Conserve Current Like Standard Models?
  • · Replies 1 ·
Replies
1
Views
4K
Graduate Proving the Spin Half Nature of Dirac Quanta
  • · Replies 7 ·
Replies
7
Views
3K
Graduate What is Quantum Physics and How Does it Differ from Classical Physics?
  • · Replies 12 ·
Replies
12
Views
4K
Graduate Can Quantum Mechanics Allow for Discontinuous Wavefunctions and Probabilities?
  • · Replies 4 ·
Replies
4
Views
6K
Graduate Non-Commutative Angular Momentum, and Muonium
  • · Replies 1 ·
Replies
1
Views
3K
Graduate A crank's idea about Uncertainty Principle
  • · Replies 27 ·
Replies
27
Views
5K
Graduate Probability Amplitude phases
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Understanding the Duality of Photons: Particle or Wave?
  • · Replies 7 ·
Replies
7
Views
4K
Graduate Nonlocality of a Single Particle: A Scheme Without Objections
  • · Replies 6 ·
Replies
6
Views
2K
Graduate Intiutive approach to Green's function for SE
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Entanglement: Can We Logically Say a Body is in All Possible States?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Multiple lines in H2 and Hg emission spectra
  • · Replies 1 ·
Replies
1
Views
4K
Graduate Hilbert/Fock space spanned by non-interacting states
  • · Replies 13 ·
Replies
13
Views
6K
Graduate Gauge Transformation: Definition & Uses
  • · Replies 3 ·
Replies
3
Views
5K
Graduate A contradiction of Heisenberg uncertainty principle?
  • · Replies 29 ·
Replies
29
Views
9K
Graduate So, the question is: Can hidden variables explain quantum behaviour?
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Slit Experiments: Unanswered Questions Explored
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Spectral line width calculations
  • · Replies 3 ·
Replies
3
Views
10K
Graduate Why are eigenstates important in the treatment of atomic systems?
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Double Slit Experiment: Wave Interference & Particle Like Patterns
  • · Replies 4 ·
Replies
4
Views
5K
Graduate Two particles in superposition
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad Flux vs Fluence: What's the Difference?
  • · Replies 1 ·
Replies
1
Views
44K
Can Consciousness and the Unified Field Be Experienced Beyond the Human Body?
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Can q Have Eigenvectors Other Than Zero in Standard Quantization Procedure?
  • · Replies 10 ·
Replies
10
Views
6K
Graduate Need a quick tutorial on the following topics
  • · Replies 5 ·
Replies
5
Views
3K
Graduate Deducing Degeneracy in Spin from Commutation Relations
  • · Replies 2 ·
Replies
2
Views
14K
Graduate Does Absolute Zero Occur in the Universe?
  • · Replies 13 ·
Replies
13
Views
6K
Graduate The Dirac Equation and the Neutrinos
  • · Replies 8 ·
Replies
8
Views
5K
Graduate Quantum Spin Chain Problem: An Overview
  • · Replies 4 ·
Replies
4
Views
4K
Graduate Fourier Transform of Hermitian Operators
  • · Replies 4 ·
Replies
4
Views
9K
Graduate How Do I Derive the Zeta Function Using Zeta Function Regularization?
  • · Replies 5 ·
Replies
5
Views
5K
Graduate Understanding Non-Relativistic Path Integral Formulation
  • · Replies 5 ·
Replies
5
Views
4K
Undergrad Light through polarizing filters
  • · Replies 8 ·
Replies
8
Views
7K
Graduate Is the physical whole a sum of quantum measurements?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate How Do Electrons, EM Waves, and Electricity Interact?
  • · Replies 7 ·
Replies
7
Views
4K
Graduate Understanding the Delta Function Well in Quantum Mechanics
  • · Replies 7 ·
Replies
7
Views
5K
Graduate Can operators describe a single or many measurements simultaneously?
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Communication using quantum entanglement
  • · Replies 5 ·
Replies
5
Views
6K
Graduate Deriving 3D Wave Eq.: Assumptions & Considerations
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Hermitian Matrices: Visualizing Transpose & Adjoint
  • · Replies 11 ·
Replies
11
Views
8K