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

Graduate Understanding Barandes' microscopic theory of causality
Graduate Webpage title: The Quantum Nature of the Fresnel Effect
  • · Replies 5 ·
Replies
5
Views
3K
Graduate QM Questions: Operators, Eigenfunctions, and Hydrogen-like Atoms Explained"
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Closed-form solutions to the wave equation
  • · Replies 6 ·
Replies
6
Views
5K
Graduate Lectures of quantum mechanics?
  • · Replies 1 ·
Replies
1
Views
8K
Undergrad Is Time Travel Possible in the Quantum World?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Can Cooper Pairs Be Explained Through the Casimir Effect?
  • · Replies 5 ·
Replies
5
Views
3K
Graduate Can anyone recommend books on the photoelectric effect and its applications?
  • · Replies 2 ·
Replies
2
Views
1K
Graduate What to learn to link EM wave to photon picture?
  • · Replies 11 ·
Replies
11
Views
3K
Graduate Quantum mechanics and the speed of light
  • · Replies 2 ·
Replies
2
Views
4K
Graduate [Q]Eigenfunction of inverse opreator and another question.
  • · Replies 5 ·
Replies
5
Views
3K
Graduate Understanding the Ephemeral Nature of Life: Anthony Zee on Quantum Field Theory
  • · Replies 9 ·
Replies
9
Views
5K
Graduate [Q]Expression of Group velocity in QM
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Can the Fredkin Gate be Proven to be Reversible and a Universal Classical Gate?
  • · Replies 5 ·
Replies
5
Views
5K
Graduate Understanding Energy Operator in Time-Dependent Schrodinger Equation
  • · Replies 5 ·
Replies
5
Views
6K
Graduate Modifications to Einstein-Hilbert action
  • · Replies 3 ·
Replies
3
Views
2K
Graduate How Does the Wave Function Determine Particle Location Probability?
  • · Replies 5 ·
Replies
5
Views
7K
Graduate [Q]eigenfunction of position operator and negative energy
  • · Replies 3 ·
Replies
3
Views
4K
Graduate Did Planck's Original Blackbody Radiation Theory Overlook Zero Point Energy?
  • · Replies 1 ·
Replies
1
Views
3K
Graduate [Q] Time uncertainty and particle energy similar to photon
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Proving Hermitian if it has real eigenvalues
  • · Replies 9 ·
Replies
9
Views
7K
Graduate False: The Time Independent Hamiltonian Operator "H
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Spinor Spreading: Relation between \psi and \chi
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Which operator is suitable to define a qubit?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate [Q]Analytic function of operator A
  • · Replies 7 ·
Replies
7
Views
2K
Graduate Measuring Position: A Microscopic Being's Perspective
  • · Replies 19 ·
Replies
19
Views
3K
Graduate Expectation Value of x: Definition & Meaning
  • · Replies 6 ·
Replies
6
Views
5K
Graduate Momentum and De Broglie Wavelength in Quantum Mechanics
  • · Replies 2 ·
Replies
2
Views
2K
Graduate QFT Overview for Soon-to-be Students
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad How we can find wavelength of a wavepacket?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad What is the Wavelength of the Scattered Photon in a Collision?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Max Freq & Temp Relation in Wien Displacement Law
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Is there no cause and effect relationship in quantum mechanics?
  • · Replies 3 ·
Replies
3
Views
6K
Graduate Question about commutation and operator
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Does energy of an electron tells anything about its orbital it's in?
  • · Replies 12 ·
Replies
12
Views
3K
Graduate What Schrodinger Equation Describes
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Quantum cryptography and uncertainty relations
  • · Replies 5 ·
Replies
5
Views
2K
Graduate Particle-only description of single-photon double-slit experiments
  • · Replies 15 ·
Replies
15
Views
5K
Undergrad Spring Mass Model: What, How & Is There an Equation?
  • · Replies 5 ·
Replies
5
Views
4K
Graduate How does one emit a single photon?
  • · Replies 27 ·
Replies
27
Views
18K
Graduate Relationship between Wave Packet Wavelength & Group Velocity
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Learning Conformal Field Theory after QM
  • · Replies 12 ·
Replies
12
Views
4K
Graduate State Tomography: Least Pairs Needed?
  • · Replies 7 ·
Replies
7
Views
2K
Graduate Dispersion Relation: What is it for Photons?
  • · Replies 7 ·
Replies
7
Views
8K
Graduate Verifying Wave Packet Delocalization: Experiments & Results
  • · Replies 2 ·
Replies
2
Views
3K
Graduate How much is known about ~x^4 potential
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Electron double slit experiment in bubble chamber
  • · Replies 2 ·
Replies
2
Views
4K
Graduate Spin Observables: Defining Reference Axes
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Quantum Immortality Explained: Proving Life After Death?
  • · Replies 29 ·
Replies
29
Views
9K
Graduate Irreducible tensor (second or higher rank)
  • · Replies 1 ·
Replies
1
Views
3K
Graduate What Is the Bohr-van Leuven Theorem and Its Significance in Quantum Mechanics?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Electron wave function collapse
  • · Replies 4 ·
Replies
4
Views
4K
Graduate Quantum Annoyance (EPR and Bell's Inequality related).
  • · Replies 32 ·
2
Replies
32
Views
6K
Graduate Why use direct product construction in quantum mechanics?
  • · Replies 9 ·
Replies
9
Views
4K
Graduate Measuring angular momentum in atomic systems
  • · Replies 7 ·
Replies
7
Views
2K
Graduate What Happens When You Measure a Superposition State in Harmonic Oscillators?
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Electron in potential well equation
  • · Replies 7 ·
Replies
7
Views
4K
Graduate Explicitly Deriving the Delta Function
  • · Replies 5 ·
Replies
5
Views
3K
High School Build a Solar Panel with TIO2 for Your Science Fair Project
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Infinite vs Finite potential well
  • · Replies 10 ·
Replies
10
Views
20K
High School Where do electrons go while making a quantum jump?
  • · Replies 29 ·
Replies
29
Views
6K
Graduate Solution of 1D Schrodinger using discretized hamiltonian
  • · Replies 5 ·
Replies
5
Views
8K
Graduate Field theory approaches to understanding Quantum Theory
  • · Replies 31 ·
2
Replies
31
Views
15K
Graduate How can I reproduce the wavefront interference photon detector seen on Nova?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Quantization of Color: Electrons Jump Between Orbits
  • · Replies 7 ·
Replies
7
Views
2K
Graduate Electron filmed for first time ever
  • · Replies 7 ·
Replies
7
Views
5K
Graduate [Q]Degeneracy and Commutability
  • · Replies 1 ·
Replies
1
Views
2K
Graduate How many of you guys accept quantum theory?
  • · Replies 9 ·
Replies
9
Views
3K
Graduate What Sparked the Concept of Quantum Tunneling and How is it Proven?
  • · Replies 8 ·
Replies
8
Views
3K
Graduate Entanglement HELP: A Heuristic Explination Needed
  • · Replies 12 ·
Replies
12
Views
3K
Graduate What does it mean to find eigenvectors of some operator in some basis?
  • · Replies 7 ·
Replies
7
Views
6K
Graduate Are Eigenfunctions and Eigenstates Just Eigenvectors?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Does Observing the Double Slit Collapse the Wave Function?
  • · Replies 8 ·
Replies
8
Views
3K
Graduate Is Quantum Mechanics Coherent?
  • · Replies 15 ·
Replies
15
Views
3K
Graduate Exploring Peskin & Schroeder's QFT Propositions on p. 166
  • · Replies 1 ·
Replies
1
Views
4K
Graduate Yang-Mills Geometry: An Explainer for Simpletons
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Confuse about the spin and pauli matrices
  • · Replies 4 ·
Replies
4
Views
6K
Graduate Dirac equation with gamma_5 mass term?
  • · Replies 5 ·
Replies
5
Views
4K
Undergrad Dual Slit Experiment: Detecting Photons/Particles?
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Does Decoherence and Entropy Relate to the Second Law of Thermodynamics?
  • · Replies 103 ·
4
Replies
103
Views
21K
Graduate What does it mean anharmonic frequency ?
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Hamiltonian: The Key to Understanding Total Energy in Quantum Mechanics
  • · Replies 4 ·
Replies
4
Views
5K
Graduate [Q]Some confusing about Dirac Delta Function
  • · Replies 4 ·
Replies
4
Views
4K
High School Create a DIY Quantum Mechanics Experiment with Debit Cards and a Laser Pointer
  • · Replies 6 ·
Replies
6
Views
6K
Graduate Problematic derivations of Noether's theorem
  • · Replies 12 ·
Replies
12
Views
5K
Graduate Schrödinger's cat - I don't get it
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Native language: EnglishLevel of quantum mechanics: Introductory or beginner
  • · Replies 6 ·
Replies
6
Views
5K
Graduate How dangerous is matter/antimatter collisions?
  • · Replies 4 ·
Replies
4
Views
5K
Graduate Detecting Macroscopic Entanglement With the Bell Inequality
  • · Replies 6 ·
Replies
6
Views
3K
Graduate What could explain the asymmetry between matter and antimatter in the universe?
  • · Replies 7 ·
Replies
7
Views
4K
Graduate Why Were Gauges Introduced in Modern Physics Theories?
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Questioning Wavepacket: Seeking Clarification
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Constructing Hamiltonian Matrix from Sz Basis States for Quantum Spin Chains
  • · Replies 3 ·
Replies
3
Views
5K
Graduate Time-independent Schrödinger Equation
  • · Replies 5 ·
Replies
5
Views
5K
Graduate Symmetry factors for Feynman diagrams
  • · Replies 2 ·
Replies
2
Views
6K
Graduate Zero-Point Energy Manipulation
  • · Replies 4 ·
Replies
4
Views
5K
Graduate Gaussian Wave Packet: Reflection & Transmission
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Commutator in QM vs. Lie brackets in DG
  • · Replies 24 ·
Replies
24
Views
8K
Graduate Information Preservation in Quantum Gravity
  • · Replies 42 ·
2
Replies
42
Views
23K
Undergrad Why does a black body never turn green when heated?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Elementary Particles: Bosons & Fermions
  • · Replies 4 ·
Replies
4
Views
2K