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 Understanding Barandes' microscopic theory of causality
High School Which fundamental properties of particles can actually vary?
  • · Replies 21 ·
Replies
21
Views
3K
Undergrad Is the velocity of two photons of different energies same?
  • · Replies 1 ·
Replies
1
Views
976
Undergrad Yes, thank you for explaining it to me. I have a much better understanding now.
  • · Replies 1 ·
Replies
1
Views
2K
High School What does a Penning trap say about the electron?
  • · Replies 52 ·
2
Replies
52
Views
5K
High School Explain Electron Revolution in Quantum Mechanics
  • · Replies 2 ·
Replies
2
Views
1K
Graduate Maxwell field commutation relations
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Why Does U(1) Symmetry Allow Multiple Solutions in Lagrangians?
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad Create black hole with lasers? Physics project
  • · Replies 5 ·
Replies
5
Views
2K
High School Is Quantum Mechanics the Key to Unlocking New Energy Sources?
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Gauge invariance and covariant derivative
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Scale in mathematics vs in quantum physics
  • · Replies 30 ·
2
Replies
30
Views
3K
Undergrad Delayed Choice Double Slit: Sending Info to the Past?
  • · Replies 3 ·
Replies
3
Views
3K
Submit your interview questions for Dr. James Gates
  • · Replies 26 ·
Replies
26
Views
4K
Undergrad Permutation operator and Hamiltonian
  • · Replies 2 ·
Replies
2
Views
3K
High School Does the Uncertainty Principle work through barriers?
  • · Replies 18 ·
Replies
18
Views
2K
Undergrad Is Polarisation Entanglement Possible in Photon Detection?
  • · Replies 251 ·
9
Replies
251
Views
19K
Undergrad The ##1s^2## configuration of helium can't be triplet state?
  • · Replies 15 ·
Replies
15
Views
3K
High School Particle antiparticle collide, teleportation?
  • · Replies 9 ·
Replies
9
Views
2K
Undergrad Can electrons transition collectively, emitting 1 photon?
  • · Replies 13 ·
Replies
13
Views
2K
High School Do we measure the particle or the wavefunction?
  • · Replies 15 ·
Replies
15
Views
3K
Undergrad What happens to wavefunction if you swap electrons?
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Bohr-Sommerfield quantization of motion
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad Periodic potential - energy bands
  • · Replies 8 ·
Replies
8
Views
2K
Undergrad Breakdown of Planck's Law under certain Conditions
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad Discrete vs Continuous Spectra in Blackbody Radiation?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Physical Significance of 2s Orbital Peaks?
  • · Replies 23 ·
Replies
23
Views
4K
High School Quantum field theory VS Quantum mechanics
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Planck's 1st Derivation of Planck's Law?
  • · Replies 17 ·
Replies
17
Views
4K
Graduate QFT, what are the transformation rules for
  • · Replies 11 ·
Replies
11
Views
2K
Undergrad Function describing a traveling wavefield
  • · Replies 2 ·
Replies
2
Views
1K
High School Software for quantum calculations?
  • · Replies 3 ·
Replies
3
Views
1K
High School Quantum Mechanics: Wave-Particle Duality Explained
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Creation and annihilation operator commutation confusion
  • · Replies 2 ·
Replies
2
Views
2K
High School Wave function, units in the argument
  • · Replies 5 ·
Replies
5
Views
1K
High School What does "orbital velocity" mean in a quantum setting?
  • · Replies 4 ·
Replies
4
Views
1K
Undergrad Is Quantum Mechanics Redefining Our Understanding of Mass Defect?
  • · Replies 7 ·
Replies
7
Views
2K
Graduate Parity and time reversal on derivatives and electric field?
  • · Replies 10 ·
Replies
10
Views
5K
High School Is angular momentum of a quantum object, metaphorical?
  • · Replies 28 ·
Replies
28
Views
3K
Undergrad Relationship Between Hermitian and Symmetric Matrices
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad Why do the alternatives separate from each other?
  • · Replies 7 ·
Replies
7
Views
1K
Undergrad QFT for the Gifted Amateur Question (3)
  • · Replies 1 ·
Replies
1
Views
1K
High School Understanding the Unitary and Branches Theorem in Quantum Mechanics
  • · Replies 9 ·
Replies
9
Views
2K
Graduate Quantized E field, Coulomb Gauge with Interactions
  • · Replies 8 ·
Replies
8
Views
2K
High School What Is Information? | Definition & Overview
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Ensembles and density matrices - I don't get it
  • · Replies 10 ·
Replies
10
Views
2K
Undergrad The wave function is an exponential function, if I plot the
  • · Replies 3 ·
Replies
3
Views
4K
Undergrad Test of Bell's Theorem: Experiments Beyond Polarization
  • · Replies 6 ·
Replies
6
Views
2K
High School Hydrogen Atom States Before Photon Emission | Help
  • · Replies 10 ·
Replies
10
Views
2K
High School Quantum Physics -Double Slit Delayed Observation
  • · Replies 13 ·
Replies
13
Views
2K
High School Can Measuring Momentum Make a Marble's Position Vanish?
  • · Replies 6 ·
Replies
6
Views
1K
High School Does tunneling affect the energy of a particle in a finite box?
  • · Replies 3 ·
Replies
3
Views
1K
Graduate I've tried to read the reason for using Fourier transform
  • · Replies 5 ·
Replies
5
Views
2K
High School Electron Diffraction and the DeBroglie Wavelength
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Does Quantum Foam Influence the Gravity of the Universe?
  • · Replies 1 ·
Replies
1
Views
2K
High School The moment we observe superposition
  • · Replies 14 ·
Replies
14
Views
2K
Graduate Mandelstam Variables for 2->2 Scattering with Equal Masses in CoM Frame
  • · Replies 32 ·
2
Replies
32
Views
5K
High School How does electron microscopy exploit wave/particle duality?
  • · Replies 2 ·
Replies
2
Views
4K
Undergrad Can someone explain this picture to me?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Finite difference method for Schrödinger equation
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Quantum thermodynamics of single particle
  • · Replies 13 ·
Replies
13
Views
2K
Undergrad Is vacuum energy infinite? If it is, how and why?
  • · Replies 5 ·
Replies
5
Views
3K
High School Can quantum mechanics be derived from deeper principles?
  • · Replies 2 ·
Replies
2
Views
1K
High School Could spin be a combination of magnetic monopoles?
  • · Replies 11 ·
Replies
11
Views
2K
High School Is this equal to teleporting information?
  • · Replies 10 ·
Replies
10
Views
2K
High School How Does Quantum Darwinism Relate to the Born Rule and Observer Agreement?
  • · Replies 43 ·
2
Replies
43
Views
5K
Undergrad Bell's Theorem: Understanding Bell's Nonlocality and How it Applies to Photons
  • · Replies 6 ·
Replies
6
Views
1K
Undergrad Role of entanglement in general purpose quantum computing
  • · Replies 2 ·
Replies
2
Views
2K
High School Is there a minimum wavelength for electromagnetic radiation?
  • · Replies 11 ·
Replies
11
Views
3K
Graduate Is Brute Force the Best Approach to Proving Feynman's Denominator Formula?
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad Does the electron really spin 720 degrees?
  • · Replies 71 ·
3
Replies
71
Views
17K
Graduate Spinors in dimensions other than 4
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Unified gravity with electroweak through SU(2)xSU(2)xU(1)
  • · Replies 3 ·
Replies
3
Views
1K
High School What is the Light Constant and Its Relationship to Maxwell's Equations?
  • · Replies 2 ·
Replies
2
Views
1K
High School Decoherence thought experiment
  • · Replies 4 ·
Replies
4
Views
2K
High School Is it a myth that serves as motivation for decoherence?
  • · Replies 11 ·
Replies
11
Views
3K
Graduate Particles in quantum field theory
  • · Replies 16 ·
Replies
16
Views
3K
High School Photoelectric effect and atomic excitation
  • · Replies 3 ·
Replies
3
Views
3K
High School Compton’s experiment vs ordinary mirror
  • · Replies 8 ·
Replies
8
Views
2K
Undergrad Uncertainty of electron energy based on confinement radius?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Decoherence and time reversal asymmetry
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad Photon absorption and speed of wave function propagation....
  • · Replies 5 ·
Replies
5
Views
2K
High School Is an Electron a Wave? Understanding the Nature of Electrons
  • · Replies 17 ·
Replies
17
Views
2K
Undergrad Problem during finding <x> in p space
  • · Replies 4 ·
Replies
4
Views
1K
Undergrad What is the width of a wave packet?
  • · Replies 3 ·
Replies
3
Views
3K
High School Can Particles Really Pop Into Existence from a Vacuum?
  • · Replies 26 ·
Replies
26
Views
4K
Undergrad Understanding Spinors - Geometry & Usage
  • · Replies 16 ·
Replies
16
Views
5K
Graduate Is Gravity Directly Related to Groupings of Atoms?
  • · Replies 9 ·
Replies
9
Views
2K
Undergrad Stationary states -- Boltzmann distribution
  • · Replies 22 ·
Replies
22
Views
3K
High School What Causes Decoherence in Quantum Systems?
  • · Replies 31 ·
2
Replies
31
Views
3K
Graduate Issue in the electron’s infinite self-energy
  • · Replies 3 ·
Replies
3
Views
2K
High School States as positive operators of unit trace
  • · Replies 8 ·
Replies
8
Views
2K
Undergrad Square integrable wave functions vanishing at infinity
  • · Replies 4 ·
Replies
4
Views
5K
Undergrad Wavefunction spreading speed in material mediums
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad What is the wavelike behavior of an electron in superposition?
  • · Replies 16 ·
Replies
16
Views
2K
Undergrad Everett on measurements: what does he mean?
  • · Replies 8 ·
Replies
8
Views
2K
Undergrad Two single-photon Fock states vs one two-photon Fock state
  • · Replies 25 ·
Replies
25
Views
4K
High School What is the relationship between spin and angular momentum in quantum mechanics?
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Entangled system pure state or not?
  • · Replies 80 ·
3
Replies
80
Views
7K
High School Is wave a physical object or its just a model?
  • · Replies 12 ·
Replies
12
Views
2K
Undergrad Are renormalizable QFT the ''really renormalizable''?
  • · Replies 16 ·
Replies
16
Views
2K