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

Undergrad On computing quantum waves exactly from classical action
Graduate DFT for configuration of atoms
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Q.M. on S^6, add potential gives Q.M. on S^3?
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad What is Macroscopic Quantization and How Does it Affect Everyday Objects?
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Breaking Down the Uncertainty Principle
  • · Replies 8 ·
Replies
8
Views
4K
Graduate The modern view of decoherence: A layperson's qestion
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Pencil tipping problem - trying to understand uncertainty
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Measurement collapse as a perturbation?
  • · Replies 22 ·
Replies
22
Views
4K
Graduate Beginners Question Uncertainty Principle
  • · Replies 8 ·
Replies
8
Views
2K
Graduate Questions about Quantum state, Pauli exclusion principle and chemistry.
  • · Replies 2 ·
Replies
2
Views
3K
Graduate How to solve the Klein Gordon Complex Field?
  • · Replies 36 ·
2
Replies
36
Views
9K
Graduate Infinite volume limit literature?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Acceleration of the Photon and the shape of it's wave
  • · Replies 7 ·
Replies
7
Views
3K
Graduate TED Presentation, April 2009: Allosphere, data visualization
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Casimir effect - silly question, but
  • · Replies 17 ·
Replies
17
Views
3K
Graduate Zero points of particle wave function?
  • · Replies 14 ·
Replies
14
Views
3K
Graduate What do we mean by minus energy ?
  • · Replies 5 ·
Replies
5
Views
3K
Graduate Particle In a finite potential well
  • · Replies 10 ·
Replies
10
Views
8K
Graduate Imaginary Time and Path Integrals?
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Boundary conditions for two dimensional problems in Quantum mechanics
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Understanding the \hat{\sigma} Matrix
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Calculating Eigenstates and Eigenvalues of a 2D Quantum Rotor with Perturbation
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad 3 question of Ballmer experiment
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Wavefunction of a 2-particle system.
  • · Replies 16 ·
Replies
16
Views
6K
Graduate Creation and annihilation operator in quantum mechanics?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate What is the Nature of Material Waves in Quantum Mechanics?
  • · Replies 22 ·
Replies
22
Views
4K
Graduate Why Is (-i d/dx) Chosen as the Momentum Operator in Quantum Mechanics?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Wave function of Stationary State
  • · Replies 16 ·
Replies
16
Views
9K
Graduate A simple QM experiment analysis question
  • · Replies 33 ·
2
Replies
33
Views
5K
Undergrad Virtual Particles: How can they be responsible for attractive forces?
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Understanding Bose-Hubbard Model: Senior Guide
  • · Replies 5 ·
Replies
5
Views
4K
Undergrad Solving the Mystery of Energy Levels in Hydrogen Atom - Jules
  • · Replies 9 ·
Replies
9
Views
3K
Graduate Why does the amplitude <p |T| p'> have the dimension of a volume?
  • · Replies 6 ·
Replies
6
Views
2K
Graduate Direction of vector precession
  • · Replies 3 ·
Replies
3
Views
4K
Graduate Boundary between deterministic reality and probabilistic reality
  • · Replies 20 ·
Replies
20
Views
8K
Graduate What Are the Effects of Dispersion and Uncertainty on Wave Packets?
  • · Replies 3 ·
Replies
3
Views
4K
Can a vulcan study quantum mechanics ?
  • · Replies 11 ·
Replies
11
Views
3K
Graduate Invariance of the action under a transformation
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Help Understanding "Energy Levels" in "Particle in a Box"
  • · Replies 18 ·
Replies
18
Views
7K
Graduate Significance of Phase Factor in Quantum Mechanics Measurements
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Simple question about spontaneous particle production
  • · Replies 5 ·
Replies
5
Views
3K
Undergrad Difference between fluorescence and phorforescence
  • · Replies 4 ·
Replies
4
Views
6K
Graduate A variation of the double-slit experiment-myth or did somone really do it?
  • · Replies 16 ·
Replies
16
Views
7K
Graduate Continuity of Function and Derivative at boundary.
  • · Replies 5 ·
Replies
5
Views
5K
Graduate Pilot Wave Theory: Mechanics Explained
  • · Replies 35 ·
2
Replies
35
Views
10K
Graduate Measure Momentum: Experiments & Eigenstate Detection
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Cardinality argument in the Casimir effect
  • · Replies 1 ·
Replies
1
Views
2K
Graduate What is the Correct Form of the Uncertainty Principle?
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Entangled Electrons: The Mysteries of Non-Locality and Time Travel Explained
  • · Replies 9 ·
Replies
9
Views
3K
Graduate Double Delta Potential Problem Solution
  • · Replies 17 ·
Replies
17
Views
19K
Graduate Proving lorentz invariance of Dirac bilinears
  • · Replies 2 ·
Replies
2
Views
3K
Graduate What is the Difference Between Locality and Separability in Quantum Mechanics?
  • · Replies 32 ·
2
Replies
32
Views
7K
Graduate Variational Method: Approximating Complex Wave Functions with Real Quantities?
  • · Replies 7 ·
Replies
7
Views
3K
Graduate Proving Commuter Operators: X & P
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Why no EOM in QFT with higher than second order derivatives in time and space?
  • · Replies 4 ·
Replies
4
Views
3K
Graduate What is physical significance of g factor?
  • · Replies 35 ·
2
Replies
35
Views
44K
Graduate One question on average thermal velocity of free electron in metals
  • · Replies 1 ·
Replies
1
Views
5K
Graduate Four Point Correlation function from Generating Functional
  • · Replies 1 ·
Replies
1
Views
5K
Graduate Quantum weirdness of photon behavior
  • · Replies 5 ·
Replies
5
Views
4K
Graduate Functional Quantization of Scalar Fields
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Solving Bra-ket Multiplication: <n|(a-+a+)^4|n> = 5n2+5n+3
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Understanding of the Fermion, Boson difference
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Is the total angular momentum operator J a spherical tensor operator?
  • · Replies 1 ·
Replies
1
Views
5K
High School A question about plank constant
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Algebraic (ladder) solutions in QM
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Is Wave Theory the Key to Understanding All Physical Phenomena?
  • · Replies 87 ·
3
Replies
87
Views
15K
Graduate Question about the nature of electrons and the strong force
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Srednicki 9.17, 9.18: Sum of Diagrams with Single Source Removed
  • · Replies 3 ·
Replies
3
Views
2K
Graduate What is the QFT picture of forces?
  • · Replies 7 ·
Replies
7
Views
2K
Graduate Understanding Wave Functions: A Comprehensive Guide
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Why graviton particle theory concept is not accepted?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad How does an Electron 'jump' from one orbit to the other?
  • · Replies 14 ·
Replies
14
Views
15K
Graduate How Does Pauli-Villars Regularization Handle Three Types of Divergences?
  • · Replies 1 ·
Replies
1
Views
4K
Graduate Branch-cut singularity and the multiparticle contribution to the full propagator
  • · Replies 5 ·
Replies
5
Views
6K
Graduate Do we really need loop diagrams?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Is the concept of electron shells conceptually realted to quantum tunnelling?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Basic question on QFT and the standard model
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Constructing Wave Function for N-Electron System
  • · Replies 4 ·
Replies
4
Views
2K
Graduate The wave nature of the wave function.
  • · Replies 3 ·
Replies
3
Views
2K
Graduate The Frequency of one Photon?
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Finding the Trace of a Product of 4 SL(2,C) Matrices | Helpful Guide
  • · Replies 8 ·
Replies
8
Views
13K
Graduate Nonlinear vacuum permittivity?
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Multitude of Quantum Mechanics questions
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Is gravity really just an electromagnetic field on a larger scale?
  • · Replies 19 ·
Replies
19
Views
7K
Graduate Uncollapsing a State: A Fresh Look at the Measurement Problem
  • · Replies 11 ·
Replies
11
Views
3K
Graduate Entangled particles and measurement
  • · Replies 2 ·
Replies
2
Views
6K
Graduate The particle INSIDE the barrier
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Loschmidt's paradox-II: Quantum Decoherence
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Amplitude damping with harmonic oscillators
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Attosecond Spectroscopy, QM, and Atomic Geometry
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Wave particle duality as applied to photon
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Variational method in a finite square well
  • · Replies 1 ·
Replies
1
Views
4K
Graduate Can Operators A and B Always Be Applied to a General State in Tensor Space?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate How can I get the wave function
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Determinism of the wave function
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Defense of pilot wave theory against Motl
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Recovering the generator of rotation from canonical commutation relations
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Uncertainty principle and standard deviation.
  • · Replies 21 ·
Replies
21
Views
6K
Graduate Entanglement: Understanding the 2 Electron System States
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Since protons are not spherical, are their charge fields non-spherical?
  • · Replies 8 ·
Replies
8
Views
3K
Undergrad What is Field? Understanding its Nature and Properties
  • · Replies 7 ·
Replies
7
Views
2K