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

I Question about discussions around quantum interpretations
Can Entangled Particles Be Used for Quantum Communication?
  • · Replies 9 ·
Replies
9
Views
5K
Do virtual particle pairs interact gravitationally?
  • · Replies 24 ·
Replies
24
Views
5K
Generator of Rotations and commutation relationships
  • · Replies 6 ·
Replies
6
Views
2K
From unitary operator to hamiltonian
  • · Replies 7 ·
Replies
7
Views
4K
Understanding Unitary Operator Evolution in Quantum Mechanics
  • · Replies 4 ·
Replies
4
Views
2K
Reconciling DeBroglie and Dirac?
  • · Replies 6 ·
Replies
6
Views
2K
Does the Schrodinger Equation Describe Particles Popping In/Out of Existence?
  • · Replies 3 ·
Replies
3
Views
3K
Lande g-factor and total angular momentum conservation
  • · Replies 1 ·
Replies
1
Views
2K
Is nothing an unstable thing that violates HUP?
  • · Replies 15 ·
Replies
15
Views
3K
What would you consider to be the most quintessential equations of QM?
  • · Replies 9 ·
Replies
9
Views
2K
Proving an Identity Involving Gamma Matrices: Help Needed
  • · Replies 5 ·
Replies
5
Views
5K
Don't understand continuous basis
  • · Replies 10 ·
Replies
10
Views
6K
How to Derive the Chern-Simons Contribution to the Effective Action?
  • · Replies 4 ·
Replies
4
Views
3K
Representations of the Lorentz group
  • · Replies 2 ·
Replies
2
Views
2K
Quantum eraser input polarization
  • · Replies 2 ·
Replies
2
Views
2K
Building a quantum computer from living parts (FMO proteins)
  • · Replies 1 ·
Replies
1
Views
2K
Proof of traceless gamma matrices
  • · Replies 2 ·
Replies
2
Views
8K
Relation between quantum computer and quantum field theory?
  • · Replies 2 ·
Replies
2
Views
2K
How many combinations are possible with the four quantum numbers?
  • · Replies 4 ·
Replies
4
Views
3K
Does CP Violation in Weak Interaction Suggest Perpetuum Mobile of Second Type?
  • · Replies 3 ·
Replies
3
Views
1K
How much mathematics do I need to know to start Quantum Field Theory?
  • · Replies 4 ·
Replies
4
Views
2K
Charge conjugation in second quantization
  • · Replies 2 ·
Replies
2
Views
2K
What really is a Weak Measurement?
  • · Replies 10 ·
Replies
10
Views
8K
Is more than 99.9% of any object is just empty space?
  • · Replies 29 ·
Replies
29
Views
8K
A Question about Spin Induced Magnetic Moment
  • · Replies 2 ·
Replies
2
Views
2K
Sakurai proof Wigner-Eckart theorem
  • · Replies 1 ·
Replies
1
Views
4K
Explanation from Part of Griffith's text (Differential Equation)
  • · Replies 5 ·
Replies
5
Views
2K
Imaginary eigenvalues of gamma matrices
  • · Replies 7 ·
Replies
7
Views
5K
Velocity and Phase Velocity of Matter Wave
  • · Replies 7 ·
Replies
7
Views
6K
How do we measure the position of a particle?
  • · Replies 3 ·
Replies
3
Views
4K
Independent fields in euclidean space
  • · Replies 4 ·
Replies
4
Views
3K
Photoelectric effect with n photons
  • · Replies 1 ·
Replies
1
Views
3K
Detection loophole vs. Spooky action at a distance
  • · Replies 3 ·
Replies
3
Views
2K
Higgs boson and the future of quantum phyiscs
  • · Replies 4 ·
Replies
4
Views
2K
String Theory: Is Energy a Physical Entity?
  • · Replies 6 ·
Replies
6
Views
3K
Just recently I discovered the world of the superfluids and I am
  • · Replies 5 ·
Replies
5
Views
3K
Schrodinger Equation, Potential
  • · Replies 2 ·
Replies
2
Views
2K
Help with Understanding Conclusions of the Planck Hypothesis
  • · Replies 2 ·
Replies
2
Views
2K
Is the law of noncontradiction still applicable in quantum physics?
  • · Replies 7 ·
Replies
7
Views
3K
Adding energy to confined particles
  • · Replies 1 ·
Replies
1
Views
2K
Exploring the Difference between KT and Ferro-Para Phase Transitions
  • · Replies 1 ·
Replies
1
Views
3K
Exclusion principles for fermions and bosons
  • · Replies 2 ·
Replies
2
Views
2K
Electron/Hole Effective Mass vs Solar Cell efficiency
  • · Replies 1 ·
Replies
1
Views
2K
Quantum Entanglement at the Big Bang
  • · Replies 3 ·
Replies
3
Views
2K
Proving the Poisson summation formula (like a physicist)
  • · Replies 1 ·
Replies
1
Views
2K
Gauge invariance requires gauge bosons, why not for neutral fermions?
  • · Replies 19 ·
Replies
19
Views
4K
How do photons interact in magnetism and how is the force felt
  • · Replies 13 ·
Replies
13
Views
6K
How to understand the standard momentum introduced in Weinberg's QFT
  • · Replies 10 ·
Replies
10
Views
3K
Double Slit Experiment: Home Reproduction Guide
  • · Replies 4 ·
Replies
4
Views
2K
Why does Klein-Gordon's equation not obey quantum mechanics?
  • · Replies 4 ·
Replies
4
Views
3K
What does Quantum entanglement tell about Causality?
  • · Replies 10 ·
Replies
10
Views
6K
Does New Research Disprove Heisenberg's Uncertainty Principle?
  • · Replies 4 ·
Replies
4
Views
3K
QM & CTCs: Examining the Possibility of Closed Time-Like Curves
  • · Replies 12 ·
Replies
12
Views
3K
Experimental violation of HUP in its original form
  • · Replies 4 ·
Replies
4
Views
3K
2 scientists think they have defeated the uncertainty principle
  • · Replies 1 ·
Replies
1
Views
2K
Question about quantum physics and possible shortcomings
  • · Replies 2 ·
Replies
2
Views
1K
Question with electromagnetic radiation
  • · Replies 1 ·
Replies
1
Views
1K
Fermion Anticommutation Relations (nightmare)
  • · Replies 9 ·
Replies
9
Views
7K
Help Where can I start if I want to learn Quantum Spin Hall Effect?
  • · Replies 1 ·
Replies
1
Views
2K
Rationale of the position operator?
  • · Replies 3 ·
Replies
3
Views
2K
Time development of a Gaussian integral help
  • · Replies 7 ·
Replies
7
Views
2K
Normalizing Functions: Basics & Examples
  • · Replies 3 ·
Replies
3
Views
2K
Wave function of a flame or fire
  • · Replies 6 ·
Replies
6
Views
2K
Wave Function Collapse: Quantum Mechanics by Griffith
  • · Replies 8 ·
Replies
8
Views
3K
Ehrenfest Theorem - Does Classical Mechanics Need Big Particles?
  • · Replies 5 ·
Replies
5
Views
2K
Can wave particle duality be viewed at macroscopic scale ?
  • · Replies 2 ·
Replies
2
Views
3K
What happens when we insert detectors in a delayed choice experiment?
  • · Replies 1 ·
Replies
1
Views
2K
Sakurai 1st edition vs. Sakurai 2nd edition?
  • · Replies 1 ·
Replies
1
Views
2K
What is the speed of light doing in the spin half hamiltonian?
  • · Replies 4 ·
Replies
4
Views
2K
Who is puzzled by the delayed choice?
  • · Replies 86 ·
3
Replies
86
Views
19K
Lorentz invariance of [itex] E_p \delta ({\bf p}- {\bf q}) [/itex]
  • · Replies 8 ·
Replies
8
Views
7K
Model of the universe/quantum computing
  • · Replies 1 ·
Replies
1
Views
2K
Confusion about Wave / Particle Behaviour of X-Rays
  • · Replies 4 ·
Replies
4
Views
4K
Quantum vacuum plasma thruster
  • · Replies 1 ·
Replies
1
Views
4K
Question about uncertainty principle
  • · Replies 22 ·
Replies
22
Views
4K
Radiation from a continually-accelerating electron
  • · Replies 1 ·
Replies
1
Views
1K
Quarter Wave Plate: 45 & 135 Degree Polarization Output
  • · Replies 1 ·
Replies
1
Views
2K
Entanglement, classical correlation, and questions about superluminal signalling
  • · Replies 4 ·
Replies
4
Views
4K
Unitary equivalence of QM (not for energy?)
  • · Replies 10 ·
Replies
10
Views
3K
Problem with the two-slit experiment
  • · Replies 7 ·
Replies
7
Views
7K
Simultaneously Measuring Entangled Particles
  • · Replies 37 ·
2
Replies
37
Views
8K
Can the future affect the past
  • · Replies 21 ·
Replies
21
Views
7K
A very basic question about the the origin of quantum levels
  • · Replies 3 ·
Replies
3
Views
2K
Simplified spacetime and Emc2 vs Quantum Theory
  • · Replies 1 ·
Replies
1
Views
2K
Quantum Entanglement: The Spooky Connection Between Particles
  • · Replies 11 ·
Replies
11
Views
3K
Conformal Invariance Klein Gordon Action
  • · Replies 6 ·
Replies
6
Views
5K
Reason a Dineutron is not bound?
  • · Replies 7 ·
Replies
7
Views
10K
How Big is a Photon and What are its Dimensions?
  • · Replies 74 ·
3
Replies
74
Views
53K
Quantam Vacuum - Strong Electric fields.
  • · Replies 1 ·
Replies
1
Views
2K
Distinction between real and virtual photon
  • · Replies 6 ·
Replies
6
Views
5K
What causes a particle to change directions
  • · Replies 1 ·
Replies
1
Views
2K
Semester Project concerning Feynman Diagrams
  • · Replies 3 ·
Replies
3
Views
1K
Proving HO Eigenvalues Using Ladder Operators
  • · Replies 6 ·
Replies
6
Views
2K
How Long Does a Photon Retain Its Spin After Dis-Entanglement?
  • · Replies 8 ·
Replies
8
Views
2K
Eigenvalue of position operator and delta function.
  • · Replies 1 ·
Replies
1
Views
2K
How can we know initial state of a particle
  • · Replies 5 ·
Replies
5
Views
2K
Spin statistic terms in absorption cross section
  • · Replies 4 ·
Replies
4
Views
2K
What Happens When an Electron Enters an Infinite Square Well?
  • · Replies 4 ·
Replies
4
Views
2K
Need recommendation for good popular science book on QM
  • · Replies 5 ·
Replies
5
Views
2K
A night with the stars (Brian Cox on telly)
  • · Replies 123 ·
5
Replies
123
Views
72K