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 Valid local explanation of Bell violations? (Pegg et al., 1999; 2008)
High School What is Decoherence and How Did Bohr and Einstein Debate Its Implications?
  • · Replies 2 ·
Replies
2
Views
2K
High School Wave Function Collapsing Function
  • · Replies 5 ·
Replies
5
Views
2K
High School Do wave packets really represent a free particle?
  • · Replies 16 ·
Replies
16
Views
3K
High School Is 'Synchronized' a Misleading Term for Entangled Atoms?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Quantum Entanglement on the Moon
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Propagator operator in Heinsenberg picture
  • · Replies 5 ·
Replies
5
Views
2K
TQFT From Purely Mathematical Considerations
  • · Replies 1 ·
Replies
1
Views
1K
High School Are vertical lines from squinting a Quantum phenomenon?
  • · Replies 1 ·
Replies
1
Views
2K
High School Brownian motion from virtual photons?
  • · Replies 11 ·
Replies
11
Views
2K
High School Do particles "care" about consciousness or simply the data
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad How to understand the derivation for this process in QFT?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad What is Cn in quantum mechanics?
  • · Replies 8 ·
Replies
8
Views
5K
Undergrad Causality preserved in Klein-Gordon equation
  • · Replies 3 ·
Replies
3
Views
3K
Undergrad Why is entanglement crucial for quantum computing?
  • · Replies 10 ·
Replies
10
Views
2K
Undergrad Proof of some identities regarding spin angular momentum.
  • · Replies 2 ·
Replies
2
Views
1K
High School Energy in microwave cavity quantized?
  • · Replies 17 ·
Replies
17
Views
2K
Graduate On the equivalence of operator vs path integral in QFT
  • · Replies 15 ·
Replies
15
Views
3K
High School Does the Compton effect only occur at a specific angle of incidence?
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Wu Experiment and Parity Violation
  • · Replies 3 ·
Replies
3
Views
4K
Undergrad Products of operators : products of matrices
  • · Replies 5 ·
Replies
5
Views
1K
High School Entangled particles and lorentz contraction?
  • · Replies 10 ·
Replies
10
Views
2K
Why is deBroglie λ for electrons the same as λ for photons?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Quantum Tunneling: Can it Cause Stable Systems To Transition?
  • · Replies 1 ·
Replies
1
Views
2K
High School Understanding Forces and Fields in Classical and Quantum Interactions
  • · Replies 14 ·
Replies
14
Views
2K
Graduate Symmetrisation of wave function for fermions
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Hamiltonian for spin-1/2 particle in B-field: units issue
  • · Replies 5 ·
Replies
5
Views
2K
High School Is Classical EM Field the Same as Photon Wave Function?
  • · Replies 62 ·
3
Replies
62
Views
5K
Graduate Non-locality and The First Law of Thermodynamics
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad Momentum and energy in QM and QFT
  • · Replies 9 ·
Replies
9
Views
2K
High School Unified Quantum Field: Is it Possible?
  • · Replies 33 ·
2
Replies
33
Views
4K
High School Non-Hermitian operator for superposition
  • · Replies 7 ·
Replies
7
Views
2K
Undergrad If you shoot an electron at a wall....
  • · Replies 39 ·
2
Replies
39
Views
5K
High School Mistaking QM/Measurement problems....
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Common interaction vacuum for QED + QCD?
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Can classical EM be derived from QFT?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad QM Phase Symmetry & Charge Conservation
  • · Replies 14 ·
Replies
14
Views
2K
Undergrad Completeness Relation: 2 Questions Answered
  • · Replies 9 ·
Replies
9
Views
2K
Undergrad What Is the Physics Behind Particle Traveling Over Voltage?
  • · Replies 9 ·
Replies
9
Views
2K
High School Canonically conjugate quantities
  • · Replies 19 ·
Replies
19
Views
6K
Undergrad Radiation passing through Planck-scale wormholes
  • · Replies 2 ·
Replies
2
Views
2K
Graduate What Experimental Techniques Can Enhance Quantum State Preparation?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Deriving resolution of the identity without Dirac notation
  • · Replies 9 ·
Replies
9
Views
4K
Graduate Dependence of entropy and temperature on Planck's constant
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Quirk: A drag-and-drop in-browser quantum circuit simulator
  • · Replies 13 ·
Replies
13
Views
3K
High School Is Quantum Mechanics Necessary for Understanding Water's Properties?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Atomic orbitals: change during excitation?
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Phase of |0> when it appears in a product
  • · Replies 3 ·
Replies
3
Views
1K
High School Is There a Quantum Lift Analogous to Aerodynamic Lift?
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad Would we observe a changing Planck's constant?
  • · Replies 8 ·
Replies
8
Views
2K
Undergrad Delayed choice quantum eraser - partial information retrieval
  • · Replies 2 ·
Replies
2
Views
2K
High School Is QE knowing how to correlate particles' measurements?
  • · Replies 6 ·
Replies
6
Views
1K
Undergrad Introducing QM via commutators
  • · Replies 7 ·
Replies
7
Views
2K
Undergrad What are the probabilities for different outcomes with Bose-Einstein statistics?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Data from a delayed choice quantum eraser experiment
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Resources for GRW, CSL collapse models
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Why is momentum the Fourier transform of position?
  • · Replies 12 ·
Replies
12
Views
6K
High School Some website about new Bohr model
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad Distinguishable Terms in a State
  • · Replies 1 ·
Replies
1
Views
1K
Qbit: More than a two-state quantum-mechanical system?
  • · Replies 7 ·
Replies
7
Views
1K
High School Double slit experiment - doesn't measurement affect photons?
  • · Replies 9 ·
Replies
9
Views
2K
Graduate Gauge-invariant operators in correlation functions
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad They physics of phase inversion in Grover's algorithm
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Can the energy of a particle ensemble in QFT be bounded over time?
  • · Replies 37 ·
2
Replies
37
Views
4K
Undergrad How to Shut Up and Calculate a Delayed Choice Outcome
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Gauge transformations at infinity
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad What's wrong with Quantum Mechanics and its teaching?
  • · Replies 16 ·
Replies
16
Views
3K
Undergrad Scattering, 4 point correlator, number of distinct Feynman diagrams
  • · Replies 15 ·
Replies
15
Views
3K
High School Photons -- do you know what they are?
  • · Replies 2 ·
Replies
2
Views
1K
High School Quantum entanglement and relativistic simultaneity
  • · Replies 12 ·
Replies
12
Views
3K
Undergrad Trying to model wave function collapse
  • · Replies 6 ·
Replies
6
Views
2K
Graduate What’s the physical nature of the pilot wave?
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Quantized Dirac field calculations
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Some said 1000's of experiments support superposition but
  • · Replies 31 ·
2
Replies
31
Views
3K
Undergrad Do slits absorb photons at the edges?
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Where Can I Find Loudon's Paper on Two-Particle Interference Online?
  • · Replies 4 ·
Replies
4
Views
1K
Graduate Total derivative of momentum in quantum mechanics
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Question about Delayed Choice Quantum Eraser
  • · Replies 6 ·
Replies
6
Views
2K
High School Time dilation and quantum entanglement.
  • · Replies 3 ·
Replies
3
Views
2K
High School Is this a good understanding of superposition?
  • · Replies 7 ·
Replies
7
Views
3K
Undergrad Modeling EPR - Local or Non-Local
  • · Replies 23 ·
Replies
23
Views
3K
High School Why did Max Planck quantize light?
  • · Replies 10 ·
Replies
10
Views
2K
Undergrad What inspired Dirac's formulation of quantum theory?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Virial theorem as applied to hydrogen atom
  • · Replies 2 ·
Replies
2
Views
6K
Undergrad Derivative = 0 is always minima? (Linear variational method)
  • · Replies 8 ·
Replies
8
Views
2K
High School Electrons interfere with eachother?
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad The problem with measuring short distances
  • · Replies 4 ·
Replies
4
Views
1K
What happens mathematically when a wave function collapses
  • · Replies 20 ·
Replies
20
Views
4K
Undergrad Still unclear on superposition
  • · Replies 9 ·
Replies
9
Views
2K
Undergrad Why can't all bits of an entanglement be read at once?
  • · Replies 1 ·
Replies
1
Views
1K
High School What Are the Connections Between 120-Sided Dice and Eigenvalues?
  • · Replies 9 ·
Replies
9
Views
2K
Normalizable States in QM: Bound vs. Scattering
  • · Replies 4 ·
Replies
4
Views
4K
Undergrad Constraints on potential for normalizable wavefunction
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad How do we measure the EM field that a particle produces?
  • · Replies 21 ·
Replies
21
Views
2K
Undergrad Could Hidden Variables Explain Quantum Mechanics without Locality?
  • · Replies 10 ·
Replies
10
Views
2K
Undergrad Trying to understand the interference limits of matter-wave
  • · Replies 9 ·
Replies
9
Views
2K
Undergrad Bell test where observers never were in a common light cone
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Can Quantum Fields be derived from Particles?
  • · Replies 12 ·
Replies
12
Views
2K
Undergrad Understanding the Wave Function to dψ^2/dx^2 and Its Properties
  • · Replies 2 ·
Replies
2
Views
1K
Graduate Stephen Weinberg on Understanding Quantum Mechanics
  • · Replies 152 ·
6
Replies
152
Views
20K
Undergrad Understanding Double Slit interference and Uncertainty
  • · Replies 7 ·
Replies
7
Views
2K