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

A question about quantum entanglement
Graduate Wigner Matrix or Wigner D-Matrix?
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Do Electrons Behave Like Bar Magnets?
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Poker Entanglement: Is Quantum Mechanics the Key to Winning?
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Electronic Excitation: Absorbing and Re-emitting Photons
  • · Replies 8 ·
Replies
8
Views
4K
Graduate Entanglement & GR: Can We Measure Universe Info?
  • · Replies 13 ·
Replies
13
Views
4K
Graduate Feynman's QED: Is it Still Relevant Today?
  • · Replies 28 ·
Replies
28
Views
8K
Graduate Are wave functions and quantum waves synonyms?
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad LS Coupling Scheme Explained - Get Help Now
  • · Replies 3 ·
Replies
3
Views
12K
Undergrad Alpha Decay from Uranium: Electrical or Strong Nuclear Force?
  • · Replies 5 ·
Replies
5
Views
3K
Graduate A Bell Theorem with no locality assumption?
  • · Replies 79 ·
3
Replies
79
Views
19K
Graduate New (apparent) confirmation of virtual particles.
  • · Replies 21 ·
Replies
21
Views
5K
Graduate Is biological life a product of a probability wave
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Quantum fluctuations and momentum
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Virtual particles and quantum fluctuation
  • · Replies 25 ·
Replies
25
Views
8K
Undergrad Phonon vs Photon: What's the Difference?
  • · Replies 13 ·
Replies
13
Views
9K
Graduate Physical significance of normalizing a wave function?
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Quantization of vector field in the Coulomb gauge
  • · Replies 4 ·
Replies
4
Views
4K
Graduate The double slit and wave particle nature.
  • · Replies 1 ·
Replies
1
Views
2K
Graduate What is the definition of particle(s) in QM?
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Electric charge in quantum field theory
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Square of modified Dirac equation
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Where in physics does randomness occur?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Stability of Unstable Particles at High Energies: Third Generation
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Calculating Vacuum Fields at Different Frequencies
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Is True Randomness Possible in Our Determined Universe?
  • · Replies 25 ·
Replies
25
Views
6K
Graduate Typo error or correct wavefunction?
  • · Replies 5 ·
Replies
5
Views
3K
Graduate What is the explanation for the sequence in the Mandl QFT textbook (p.53)?
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Why Is Spin-Orbit Coupling Selective in Phosphorescence Transitions?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad I am trying to figure out how to refer to two overlapping uncertainty
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Propagator for matrix fields (based on Srednicki ch80, p490)
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Observation Techniques: Brian Green's NOVA Show & Quantum Physics
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Expectation value of a product of operators
  • · Replies 3 ·
Replies
3
Views
7K
Graduate How to form a picture in mind of coherent state?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Speed of transmission in quantum entanglement
  • · Replies 6 ·
Replies
6
Views
4K
Graduate Fate and Schrodinger's Equation
  • · Replies 4 ·
Replies
4
Views
4K
Graduate Schrodinger's Cat - your opinions
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Schrödinger equation in momentum space and number of solutions
  • · Replies 3 ·
Replies
3
Views
6K
Graduate Stress energy tensor in extended standard model
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Partial Trace Q: Meaning & Info Explained
  • · Replies 5 ·
Replies
5
Views
3K
Graduate Is there an interference pattern within a non-interference pattern?
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Can the 'shape' of the universe be described at the Plank scale?
  • · Replies 14 ·
Replies
14
Views
4K
Graduate EPR and Lorentz transformation
  • · Replies 13 ·
Replies
13
Views
4K
Graduate Are super-operators always writable in a basis independent form?
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Debunking the Existence and Duration of Virtual Particles
  • · Replies 301 ·
11
Replies
301
Views
43K
Graduate What Does h.c. Signify in Quantum Mechanics Formulas?
  • · Replies 3 ·
Replies
3
Views
4K
Graduate Can Free Particle Have Sharp Energy?
  • · Replies 3 ·
Replies
3
Views
3K
Graduate How is spin rotation measured?
  • · Replies 3 ·
Replies
3
Views
3K
Graduate How to arrive at Bessel function solution to 1D polynomial potential
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Why Hermitian instead of self-adjoint?
  • · Replies 20 ·
Replies
20
Views
8K
Graduate Why are identical particles indistinguishable?
  • · Replies 21 ·
Replies
21
Views
9K
Graduate Question on observer of double-split experiment
  • · Replies 15 ·
Replies
15
Views
4K
Graduate Quantum mechanics question regarding jam.
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Quantum physics in three sentences?
  • · Replies 64 ·
3
Replies
64
Views
18K
Graduate Quantum communication with extraterrestrials
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Uncountable infinite dimensional Hilbert space
  • · Replies 30 ·
2
Replies
30
Views
19K
Graduate Quantum Mechanics and General Relativity
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Wave Function Collapse: Atom's Non-Stable State
  • · Replies 2 ·
Replies
2
Views
2K
High School Does the Principal Quantum Number Refer to the Electron Shell?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Comparing Uncertainty of Two Results in Conclusion
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Experimental confirmation of indistinguishability of identical particles?
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Fermion-Boson Question: Why Different Positions?
  • · Replies 4 ·
Replies
4
Views
4K
Graduate Amplitude - photon correspondence
  • · Replies 1 ·
Replies
1
Views
2K
Graduate On spinor representations and SL(2,C)
  • · Replies 9 ·
Replies
9
Views
6K
Graduate What should we use to express free particle in Quantum Mechanics?
  • · Replies 13 ·
Replies
13
Views
4K
Graduate Understanding De Broeglie Wavelength & Electron Orbits
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Grilling the Double Slit Experiment
  • · Replies 17 ·
Replies
17
Views
4K
Graduate Is quantum physics a growing field in the future?
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Hawking Radiation's Virtual Particles?
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Explanation for the Fountain effect in superfluids
  • · Replies 2 ·
Replies
2
Views
14K
Graduate Why saying Quantum Mechanics is pillar of QFT?
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Relativistic correction to quantum mechanical system
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Hamiltonian describing energy transfer to bloch Electron from EM field
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Understanding Spin and Magnetic Field in Electrons: Explained
  • · Replies 8 ·
Replies
8
Views
4K
Graduate Landau quantization of cyclotron orbit
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Can you make a definition of velocity in QM ?
  • · Replies 17 ·
Replies
17
Views
4K
Graduate 2 Q's on Quantum Stat Mech: why only eigenvalues, why dE
  • · Replies 12 ·
Replies
12
Views
3K
Graduate Uncertainty principle, virtual particle pairs and energy
  • · Replies 3 ·
Replies
3
Views
4K
Graduate Question about Quantum Computers
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Who First Plotted the Spectral Radiancy Curve and When?
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Probability waves - instant infinite extent?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Eigenvaules and quantum numbers
  • · Replies 8 ·
Replies
8
Views
3K
Graduate Light polarization vs photons spin
  • · Replies 20 ·
Replies
20
Views
10K
Graduate SU(N) symmetry in harmonic oscillator
  • · Replies 3 ·
Replies
3
Views
5K
Graduate Question related to quantization of the magnetic field
  • · Replies 1 ·
Replies
1
Views
2K
Graduate I need just ONE analytic solution to the time-dependent Schrodinger Equation.
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Why should Hawking radiation decrease a black hole's size?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Quantum efficiency as a function of wavelength
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Schrödinger's cat contradiction
  • · Replies 18 ·
Replies
18
Views
5K
Graduate How to Normalize and Integrate a Wave Function in the Range 0 to L?
  • · Replies 4 ·
Replies
4
Views
6K
Graduate Chrial gauge theories and anomalies(Srednicki ch75-76)
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Box normalization of plane wave
  • · Replies 12 ·
Replies
12
Views
12K
Graduate Question about measurement and unitary dynamics
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Virtual particles colliding with other virtual particles
  • · Replies 7 ·
Replies
7
Views
5K
Graduate What is the Principle of Cluster Decomposition in Quantum Field Theory?
  • · Replies 5 ·
Replies
5
Views
9K
Graduate Confused by Feynman sum over histories
  • · Replies 5 ·
Replies
5
Views
4K
Graduate Does Ward Identity in QCD has origin of U(1) or SU(3) symmetry?
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Electron energy shells-where do they come from
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Commutation of Hamiltonian and time evolution operator
  • · Replies 6 ·
Replies
6
Views
9K
Graduate Do particles have spatial extent or are they point-like?
  • · Replies 18 ·
Replies
18
Views
6K
Graduate Normalization of a wavefunction
  • · Replies 4 ·
Replies
4
Views
3K