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)
Undergrad Relationship between negative mass, energy and antimatter
  • · Replies 10 ·
Replies
10
Views
2K
Graduate Field strength measurement and continuity
  • · Replies 8 ·
Replies
8
Views
2K
Undergrad Representations of the Poincaré group: question in a proof
  • · Replies 9 ·
Replies
9
Views
2K
Undergrad Why does "wave particle duality" not exist anymore?
  • · Replies 39 ·
2
Replies
39
Views
8K
Undergrad How do electrons impact the probability of fusion in a non-plasma fluid system?
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Using measurement to extract energy?
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Srednicki's normalization choice for lie algebra generators
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Frustrated spontaneous emission
  • · Replies 8 ·
Replies
8
Views
2K
High School Classical physics emerging from quantum physics
  • · Replies 6 ·
Replies
6
Views
2K
Graduate Scalar Fields with the Same Mass
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Understanding the Mistake in Dirac's Hamiltonian for Field Quantization
  • · Replies 4 ·
Replies
4
Views
2K
High School Physical significance of wave function
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Quantum telescope (different meaning)
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Do Pions Exist Naturally in High Z Nuclei and How Do Their Half Lives Change?
  • · Replies 4 ·
Replies
4
Views
1K
Undergrad Are any electrons ejected below the threshold frequency?
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Forming a unitary operator from measurement operators
  • · Replies 2 ·
Replies
2
Views
2K
High School If quantum particles can move to other universes, can macroscopic things move?
  • · Replies 4 ·
Replies
4
Views
1K
Undergrad Particle has certain energy levels in a potential well?
  • · Replies 4 ·
Replies
4
Views
1K
High School How does entanglement occur at such incredible speeds?
  • · Replies 10 ·
Replies
10
Views
2K
High School Question about the Heisenberg U.P. & the Observer Effect
  • · Replies 11 ·
Replies
11
Views
2K
Graduate How can quantum mechanics contribute in a Nuclear reactor
  • · Replies 10 ·
Replies
10
Views
3K
High School Momentum in Atoms: Understanding its Role in Potential Energy
  • · Replies 17 ·
Replies
17
Views
1K
High School What is the wave function for a single electron?
  • · Replies 11 ·
Replies
11
Views
3K
Undergrad Creation operator and Wavefunction relationship
  • · Replies 6 ·
Replies
6
Views
2K
High School How do we know some particles don't exist until measured?
  • · Replies 70 ·
3
Replies
70
Views
8K
High School How Precise Can QED Predict the Motion of Charged Particles?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Problem about Kohn Hohenberg theorem
  • · Replies 3 ·
Replies
3
Views
936
High School How is the Schrodinger Equation used in calculating forces of nature?
  • · Replies 28 ·
Replies
28
Views
3K
Undergrad Concerning the Nature of Quantum Measurement....
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Is the Joint-State of Alice and Bob's Instruments Separable in Spacetime?
  • · Replies 35 ·
2
Replies
35
Views
4K
Undergrad Difference between field and wave equation
  • · Replies 8 ·
Replies
8
Views
3K
Undergrad Question about quantum entanglement
  • · Replies 2 ·
Replies
2
Views
1K
High School Is Decoherence Enough to Solve the Measurement Problem in Wave-Particle Duality?
  • · Replies 5 ·
Replies
5
Views
1K
High School Question on the Bohr atomic model and energy
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Deriving total energy in a Hydrogen molecule
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Calculate the energy of the electron in a non-H like atom
  • · Replies 6 ·
Replies
6
Views
2K
High School Does the double slit experiment reveal evidence of quantum entanglement?
  • · Replies 8 ·
Replies
8
Views
2K
High School Is it possible for any wave to be in a complex of waves?
  • · Replies 8 ·
Replies
8
Views
2K
Undergrad How electrons move in subatomic world?
  • · Replies 6 ·
Replies
6
Views
1K
Graduate Simple way to create entangled photon pairs?
  • · Replies 21 ·
Replies
21
Views
4K
Undergrad Why doesn't momentum transfer on mirrors reveal which path?
  • · Replies 9 ·
Replies
9
Views
2K
Graduate Calculate the moment of inertia of H with the probability from wavefunction
  • · Replies 8 ·
Replies
8
Views
3K
Undergrad Forms of the Uncertainty Principle
  • · Replies 10 ·
Replies
10
Views
2K
Undergrad Mainstream quantum physics and consciousness
  • · Replies 7 ·
Replies
7
Views
2K
Insights Entanglement Entropy - Part 1: Quantum Mechanics - Comments
  • · Replies 22 ·
Replies
22
Views
7K
Undergrad Question about the quantum Zeno effect again
  • · Replies 22 ·
Replies
22
Views
3K
Undergrad QM: Measurement & Wave Function Change
  • · Replies 42 ·
2
Replies
42
Views
4K
Undergrad Unlock the Mystery of Matter: Is Consciousness Within?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Is the overlap of coherent states circular symmetric?
  • · Replies 1 ·
Replies
1
Views
2K
High School Can a particle be in two entanglements at the same time?
  • · Replies 3 ·
Replies
3
Views
1K
High School What are the practical applications of QM and QFT?
  • · Replies 3 ·
Replies
3
Views
1K
High School Unanswered questions of quantum physics
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Are special relativity rules encoded in the Dirac equation?
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Satellite based entanglement over 1200 km
  • · Replies 1 ·
Replies
1
Views
1K
Insights Entanglement Entropy – Part 2: Quantum Field Theory - Comments
  • · Replies 3 ·
Replies
3
Views
2K
High School Simple intro about Schrödinger's cat metaphor
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad How can the total orbital angular momentum be zero?
  • · Replies 28 ·
Replies
28
Views
6K
Graduate Using feedback in quantum measurements
  • · Replies 7 ·
Replies
7
Views
2K
Undergrad Understanding the Effects of Entanglement in Radioactive Decay
  • · Replies 3 ·
Replies
3
Views
1K
What are the probabilities of multiverses?
  • · Replies 3 ·
Replies
3
Views
1K
High School Understanding the Ontic Nature of Wave Function in Quantum Mechanics
  • · Replies 10 ·
Replies
10
Views
2K
Graduate Bohr's solution to the EPR paradox
  • · Replies 100 ·
4
Replies
100
Views
11K
Undergrad Kinetic and Potential energy operators commutation
  • · Replies 14 ·
Replies
14
Views
7K
Undergrad Photosynthesis and quantum randomness
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Does measurement change the energy of a system?
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Quantum mechanics and gravity of Greenberger
  • · Replies 5 ·
Replies
5
Views
1K
Undergrad The symmetry argument and expectation value
  • · Replies 6 ·
Replies
6
Views
5K
High School Photon Position: Is It Less Classical Than Massive Particles?
  • · Replies 20 ·
Replies
20
Views
3K
Undergrad Delayed choice experiment affecting the past
  • · Replies 25 ·
Replies
25
Views
3K
Undergrad Is the Dimensionality of Vector Spaces the Same for Different Quantum States?
  • · Replies 1 ·
Replies
1
Views
1K
High School Understanding Quantum Theory: Wave vs Vector in Hilbert Space
  • · Replies 38 ·
2
Replies
38
Views
5K
Undergrad Is Wave-Particle Duality Still Relevant in Modern Physics?
  • · Replies 90 ·
4
Replies
90
Views
9K
Undergrad Why is E not equal to p^2/2m for a particle in a box?
  • · Replies 73 ·
3
Replies
73
Views
9K
High School What kind of difference would particles have?
  • · Replies 10 ·
Replies
10
Views
1K
Undergrad Questions on Black Hole Entanglement and ER-Bridges
  • · Replies 12 ·
Replies
12
Views
3K
Undergrad Understanding QM Proof: Wavefunction in Orthonormal Eigenfunctions
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad Many measurements are not covered by Born's rule
  • · Replies 96 ·
4
Replies
96
Views
8K
High School Wave-particle-duality and the evolution of the universe
  • · Replies 17 ·
Replies
17
Views
3K
Undergrad How a particle localized in half of a box changes over time
  • · Replies 20 ·
Replies
20
Views
4K
Undergrad Size of an electron and Planck Volume.
  • · Replies 12 ·
Replies
12
Views
3K
Undergrad Can superdense coding be achieved without quantum memory?
  • · Replies 1 ·
Replies
1
Views
1K
High School Double slit experiment question
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad Stationary states (The Bohr hydrogen atom)
  • · Replies 1 ·
Replies
1
Views
1K
High School Examples of systems that evolve deterministically
  • · Replies 13 ·
Replies
13
Views
2K
Graduate What's Your Answer To Dyson's Challenge
  • · Replies 12 ·
Replies
12
Views
2K
Undergrad If there are gravitons, is space not curved?
  • · Replies 10 ·
Replies
10
Views
2K
High School What is the comparison between the Born rule and thermodynamics?
  • · Replies 95 ·
4
Replies
95
Views
9K
Undergrad How many electron positron pairs are created
  • · Replies 8 ·
Replies
8
Views
2K
High School How do we know superposition exists?
  • · Replies 12 ·
Replies
12
Views
2K
Graduate Counterfactual Transmission of Information
  • · Replies 7 ·
Replies
7
Views
2K
Undergrad Why must the wave function be continuous in an infinite well?
  • · Replies 18 ·
Replies
18
Views
8K
Insights Damped Motion in Classical and Quantum Mechanics - Comments
  • · Replies 21 ·
Replies
21
Views
3K
High School How to understand unitarity in QM?
  • · Replies 81 ·
3
Replies
81
Views
9K
Undergrad Emitting Photon and Energy Change
  • · Replies 6 ·
Replies
6
Views
2K
High School Can the law of conservation of energy of be broken?
  • · Replies 12 ·
Replies
12
Views
3K
Undergrad Spin and magnetic field of a photon
  • · Replies 58 ·
2
Replies
58
Views
7K
Undergrad What is the basic concept of the spin of a particle
  • · Replies 28 ·
Replies
28
Views
5K
Undergrad Is this an accurate article on the shape of a photon?
  • · Replies 1 ·
Replies
1
Views
1K
High School Speed of light or speed of causality?
  • · Replies 9 ·
Replies
9
Views
5K
High School What is the significance of the Planck length in physics?
  • · Replies 8 ·
Replies
8
Views
2K