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)
Uncertainty principle if position is restricted
  • · Replies 4 ·
Replies
4
Views
1K
Insights You Will Not Tunnel Through a Wall - Comments
  • · Replies 63 ·
3
Replies
63
Views
7K
Why electrons never make contact with the nucleus?
  • · Replies 11 ·
Replies
11
Views
3K
SU(2) Rotation & Spinors: Connected?
  • · Replies 2 ·
Replies
2
Views
2K
Quantum locking -- Good sources of info?
  • · Replies 1 ·
Replies
1
Views
1K
Question about quantum superposition in CMB photons
  • · Replies 2 ·
Replies
2
Views
1K
Schrodinger equation - stationary states
  • · Replies 6 ·
Replies
6
Views
2K
A question about commutaiton between operator
  • · Replies 5 ·
Replies
5
Views
1K
A "false" superimposed qubit vs a "real one"
  • · Replies 4 ·
Replies
4
Views
2K
Observed interference in afshar's double slit experiment?
  • · Replies 1 ·
Replies
1
Views
2K
Is There One Electromagnetic Field in the Universe or Multiple Fields?
  • · Replies 19 ·
Replies
19
Views
3K
Noetherian currents and the Surface term
  • · Replies 2 ·
Replies
2
Views
1K
Particle waves through a potential barrier
  • · Replies 4 ·
Replies
4
Views
2K
Physical difference between singlet and triplet states
  • · Replies 2 ·
Replies
2
Views
2K
What do you understand about quantum entanglement?
  • · Replies 3 ·
Replies
3
Views
1K
In what sense do within-H-atom electrons "move" at ~1/137c?
  • · Replies 19 ·
Replies
19
Views
3K
Is it possible to travel to parallel universes?
  • · Replies 6 ·
Replies
6
Views
2K
Finding coefficients of superposition of states
  • · Replies 8 ·
Replies
8
Views
2K
Parallel Universe: Do Many Possibilities Dissolve?
  • · Replies 14 ·
Replies
14
Views
2K
The Electron's First Spin: An Overview
  • · Replies 28 ·
Replies
28
Views
4K
Symmetric and Antisymmetric Depiction
  • · Replies 2 ·
Replies
2
Views
2K
Spin 1/2 Particle: Uncertainty Principle Explained
  • · Replies 1 ·
Replies
1
Views
2K
Representation of spin matrices
  • · Replies 2 ·
Replies
2
Views
2K
Can Quantum Mechanics Explain the Fate of the Bucket in a Thought Experiment?
  • · Replies 16 ·
Replies
16
Views
2K
Implications of the no-clone theorem
  • · Replies 2 ·
Replies
2
Views
2K
Calculation of the running coupling
  • · Replies 4 ·
Replies
4
Views
1K
Commutation between operators of different Hilbert spaces
  • · Replies 2 ·
Replies
2
Views
3K
High Spin: Unraveling the Mystery of Mono Atomic Gold
  • · Replies 1 ·
Replies
1
Views
3K
Is the speed of light in a vacuum affected by an electric field?
  • · Replies 11 ·
Replies
11
Views
2K
Why photons reflect off glass?
  • · Replies 7 ·
Replies
7
Views
2K
Atomic dipole moment for a superposition state
  • · Replies 1 ·
Replies
1
Views
2K
What is the problem with point particles?
  • · Replies 11 ·
Replies
11
Views
2K
Why Are There Blank Spaces in Quantum Mechanics Orbitals?
  • · Replies 3 ·
Replies
3
Views
1K
Mathematics of Quantum Mechanics
  • · Replies 2 ·
Replies
2
Views
2K
Heisenberg uncertainty question
  • · Replies 3 ·
Replies
3
Views
1K
Law of baryon conservation questions
  • · Replies 1 ·
Replies
1
Views
1K
EPR & Bell: What's Wrong with My Scenario?
  • · Replies 13 ·
Replies
13
Views
2K
Hamilton Operator for particle on a circle -- Matrix representation....
  • · Replies 1 ·
Replies
1
Views
2K
Dirac Relativistic Wave Equation
  • · Replies 5 ·
Replies
5
Views
2K
Are Quantum Physics & Classical Physics incompatible?
  • · Replies 26 ·
Replies
26
Views
5K
Quantum Biology: Life on the Edge - Where is the Electron?
  • · Replies 15 ·
Replies
15
Views
2K
High School Is quantum physics a theory of unknowledge ?
  • · Replies 4 ·
Replies
4
Views
2K
Why do Black Holes evaporate due to Hawking radiation?
  • · Replies 6 ·
Replies
6
Views
3K
Using GHz multi-particle entanglement for FTL communication
  • · Replies 16 ·
Replies
16
Views
2K
Do X-Ray Tracks in Photo Film Suggest Quantum Entanglement?
  • · Replies 6 ·
Replies
6
Views
2K
Can I Make a Casimir Device at Home?
  • · Replies 1 ·
Replies
1
Views
1K
Does entangled polarized photon get through filter?
  • · Replies 5 ·
Replies
5
Views
2K
Total angular momentum operator for a superposition
  • · Replies 10 ·
Replies
10
Views
3K
Harmonic oscillator coherent state wavefunction
  • · Replies 4 ·
Replies
4
Views
2K
Field Excitations and their Collisions
  • · Replies 1 ·
Replies
1
Views
1K
Coherence length of a single photon
  • · Replies 5 ·
Replies
5
Views
3K
Why do we need a normalisation constant for wavefunctions?
  • · Replies 4 ·
Replies
4
Views
1K
Does Conscious Observation Influence Quantum State Collapse?
  • · Replies 9 ·
Replies
9
Views
3K
Is an electron considered a singularity by some physicists?
  • · Replies 5 ·
Replies
5
Views
3K
QM notes with entanglement, Bell, decoherence, etc.
  • · Replies 5 ·
Replies
5
Views
2K
Superposition / Probability Wave - frame rate problem?
  • · Replies 17 ·
Replies
17
Views
2K
How to Graph an Electron Orbital?
  • · Replies 5 ·
Replies
5
Views
3K
Can this be explained using statistical mechanics only?
  • · Replies 1 ·
Replies
1
Views
1K
Getting to Grips with Dirac Notation: A Stuck Student's Story
  • · Replies 5 ·
Replies
5
Views
2K
Lorentz transformation of a scalar field
  • · Replies 2 ·
Replies
2
Views
9K
Question on quantum entanglement
  • · Replies 3 ·
Replies
3
Views
1K
How to Relate \(\frac{1}{m^2}\lambda J^4\) to Figure 1.7.1 in Zee's QFT Book?
  • · Replies 7 ·
Replies
7
Views
3K
Understanding Spin in Quantum Mechanics: The Mystery of Schrodinger's Cat
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Implications of the Delayed Choice Quantum Eraser
  • · Replies 49 ·
2
Replies
49
Views
7K
Dirac Equation - Analytic Solution?
  • · Replies 5 ·
Replies
5
Views
2K
Are Hilbert spaces still necessary?
  • · Replies 11 ·
Replies
11
Views
3K
Ground state and stationary states
  • · Replies 2 ·
Replies
2
Views
9K
What actually happens when light meets a surface(QED or QM)?
  • · Replies 2 ·
Replies
2
Views
2K
Do Spin-Orbit Interactions change the Orbital of an Electron
  • · Replies 2 ·
Replies
2
Views
2K
The Dancing WuLi Masters: Fact or Fiction?
  • · Replies 5 ·
Replies
5
Views
3K
Undergrad Introduction to relativistic quantum mechanics and maybe QFT
  • · Replies 78 ·
3
Replies
78
Views
9K
Understanding STM Microscopes: The Role of Voltage in Physics
  • · Replies 1 ·
Replies
1
Views
1K
What operators are involved in angular momentum states?
  • · Replies 5 ·
Replies
5
Views
2K
Is DCQE erasing information or resetting the system?
  • · Replies 10 ·
Replies
10
Views
3K
Undergrad Schrodinger's cat, the multiverse and isolated systems
  • · Replies 61 ·
3
Replies
61
Views
7K
Hanbury Brown and Twiss effect explanation
  • · Replies 28 ·
Replies
28
Views
11K
Can Non Realism = Non Deterministic Hidden Variable Theory
  • · Replies 33 ·
2
Replies
33
Views
4K
Is quantum programming really possible?
  • · Replies 2 ·
Replies
2
Views
2K
Thermal Emission and Scattering (Mie or Rayleigh)
  • · Replies 3 ·
Replies
3
Views
2K
Comments - Some Useful Integrals In Quantum Field Theory
  • · Replies 2 ·
Replies
2
Views
1K
Macroscopic observation of interference?
  • · Replies 10 ·
Replies
10
Views
1K
High School How does quantum tunneling occur without an observer?
  • · Replies 114 ·
4
Replies
114
Views
11K
Do each point in solid have a special energy state?
  • · Replies 5 ·
Replies
5
Views
1K
Measurement operator for Chsh experiment
  • · Replies 1 ·
Replies
1
Views
1K
Quantum Threshold Scheme , no cloning theorem
  • · Replies 1 ·
Replies
1
Views
1K
Electron-Electron Interaction & Photon-Electron Interaction?
  • · Replies 16 ·
Replies
16
Views
4K
Does the Spin of an Atom's Electrons Affect its Orbital Configuration?
  • · Replies 10 ·
Replies
10
Views
2K
What's the universe collapsing into?
  • · Replies 48 ·
2
Replies
48
Views
4K
Is there a difference between an electron anti-neutrino and a positron neutrino?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Is the Planck length the smallest measurable length?
  • · Replies 9 ·
Replies
9
Views
3K
Can (almost) all the properties be entangled
  • · Replies 7 ·
Replies
7
Views
2K
Is this statement about the Uncertainty Principle correct?
  • · Replies 4 ·
Replies
4
Views
2K
Dimensional analysis on equation including scattering length
  • · Replies 6 ·
Replies
6
Views
2K
Does CP Violation Influence Entropy Through Altered Thermal Radiation?
  • · Replies 6 ·
Replies
6
Views
2K
High School How Does Quantum Entanglement Not Violate Causality?
  • · Replies 28 ·
Replies
28
Views
8K
Double slit experiment - bias towards normal pattern?
  • · Replies 15 ·
Replies
15
Views
3K
Commutator of creation/annihilation operators (continuum limit)
  • · Replies 2 ·
Replies
2
Views
2K
Weinberg 5.9.34: Is Charge Conservation Resolved?
  • · Replies 2 ·
Replies
2
Views
2K
How to Generate a 3D Grid for Tight Binding Wave Functions?
  • · Replies 1 ·
Replies
1
Views
1K
Double slit experiment and mirrors
  • · Replies 1 ·
Replies
1
Views
2K