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 "The wavefunction never collapses"
Graduate How Many Parallel Worlds Are There?
  • · Replies 12 ·
Replies
12
Views
4K
Graduate Understanding SU(N) Representations and Subgroups
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Linear Superposition of Hamiltonians
  • · Replies 1 ·
Replies
1
Views
2K
Graduate What Are the Parity Requirements for a Three-Fermion System?
  • · Replies 7 ·
Replies
7
Views
5K
Graduate Can Quantum Mechanics accurately explain all atomic transitions?
  • · Replies 1 ·
Replies
1
Views
8K
Graduate Quantum Collapse: Unravelling the Mechanics
  • · Replies 38 ·
2
Replies
38
Views
8K
Graduate Gravity across Multiple Dimensions
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Quantizing Fields: Establishing Commutation Relations
  • · Replies 9 ·
Replies
9
Views
4K
Graduate Is this a valid example of macroscopic quantum behavior?
  • · Replies 26 ·
Replies
26
Views
7K
Graduate Ehrenfest Theorem: Significance & Relation to Space-Time
  • · Replies 8 ·
Replies
8
Views
5K
High School What is virtual energy level ?
  • · Replies 1 ·
Replies
1
Views
11K
Graduate Photon spin - where is the missing state?
  • · Replies 13 ·
Replies
13
Views
12K
Graduate Bound states and Current density
  • · Replies 1 ·
Replies
1
Views
2K
High School Unravelling the Mystery of the Neutron
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Spin Selection Rule: Russell-Saunders vs. JJ Coupling
  • · Replies 2 ·
Replies
2
Views
13K
Graduate Is There a Time Order Behind Quantum Entanglement According to Antoine Suarez?
  • · Replies 44 ·
2
Replies
44
Views
8K
Graduate Something to do with space being time 0.o
  • · Replies 4 ·
Replies
4
Views
1K
Graduate Understanding Particle Superposition in the Schrodinger Equation
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Radioactive decay and relativity
  • · Replies 8 ·
Replies
8
Views
5K
Graduate Applications of Schrodingers Equation
  • · Replies 8 ·
Replies
8
Views
4K
Undergrad Explain Bell's Inequality & Test in Basic Terms
  • · Replies 5 ·
Replies
5
Views
3K
Graduate Quantum Computors: Learn How They Work & Uncertainty Principle
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Proving the Renormalization of Phi^4 Theory: A Challenge for Mr. Fogg
  • · Replies 3 ·
Replies
3
Views
5K
Graduate Double slit photon deflection
  • · Replies 16 ·
Replies
16
Views
4K
Graduate What is spin? i have a vague idea but im not very sure about it
  • · Replies 8 ·
Replies
8
Views
2K
Graduate Discovering Unknown Gases: Using Quantum Numbers for Spectrum Analysis
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Does a c-not gate conserve angular momentum?
  • · Replies 8 ·
Replies
8
Views
2K
Undergrad If a wavefunction can only collapse onto a few eigenstates
  • · Replies 9 ·
Replies
9
Views
2K
Graduate Quantum Teleportation and Fusion
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Advice needed for science project.
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Early Development of Matrix Mechanics: Frequencies, Intensities & Electrons
  • · Replies 4 ·
Replies
4
Views
3K
Graduate How to compute Hydrogen Inner Products <n,l+1,m+1|n,l-1,m+1>?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Video Lectures on Statistical Physics and Quantum Physics
  • · Replies 1 ·
Replies
1
Views
21K
Graduate Light in electrostatic potential
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Electron vs Photon: The Photoelectric Effect Explained
  • · Replies 32 ·
2
Replies
32
Views
33K
Graduate What's the significance of using a Gaussian wave packet in Quantum Mechanics?
  • · Replies 7 ·
Replies
7
Views
11K
Graduate Speciality of position momentum representation
  • · Replies 8 ·
Replies
8
Views
4K
Undergrad Fields: What Are They Made Of?
  • · Replies 10 ·
Replies
10
Views
3K
Graduate Spinor index notation craziness
  • · Replies 1 ·
Replies
1
Views
3K
Graduate How Do Particles Form Atoms in Light of Heisenberg's Uncertainty Principle?
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Why do particles act like waves
  • · Replies 10 ·
Replies
10
Views
8K
Graduate What Are the Experimental Foundations of Quantum Mechanics?
  • · Replies 11 ·
Replies
11
Views
3K
Undergrad Can Quantum Mechanics Explain Biology?
  • · Replies 13 ·
Replies
13
Views
5K
Graduate How does Classical Determinism Result from QM?
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Proving Hermition Matrix Real & Eigenvalues/Eigenspinors
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Gaseous system: Meaning of this integral eq.
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Is the Time Derivative Term in the Schrodinger Equation Hermitian?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate What Is Entanglement Beyond Bell's Photon Experiment?
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Force Carriers - How do they work?
  • · Replies 3 ·
Replies
3
Views
4K
Graduate Can the Fine Structure Constant Be Calculated from First Principles?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Understanding the Cat in a Box Paradox
  • · Replies 204 ·
7
Replies
204
Views
38K
Graduate Classical limit of the path integral
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad How Can We Prove E=hf Using Basic Physics Knowledge?
  • · Replies 5 ·
Replies
5
Views
3K
Undergrad Light Wavelength increases over a distance
  • · Replies 8 ·
Replies
8
Views
8K
Graduate Can the Future Influence the Past in Quantum Measurements?
  • · Replies 13 ·
Replies
13
Views
4K
Graduate Understand Wavefunction - Quantum Mechanics Help Needed
  • · Replies 17 ·
Replies
17
Views
4K
Graduate Prove zero point energy without calculation?
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Should we think a free particle as a particle in an infinitely big box?
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Integration on the way to Generating Functional for the free Dirac Field
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Is the wave/particle duality of electrons what causes vibrations/sounds?
  • · Replies 6 ·
Replies
6
Views
7K
Undergrad Reduced Mass Effect on Recombination Lines Explained
  • · Replies 10 ·
Replies
10
Views
3K
Graduate Measurement/observation in QM
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Finding the Mystery gas questions
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Deriving the Dirac equation from an action principle
  • · Replies 12 ·
Replies
12
Views
6K
Graduate Evanescent Wave Coupling & Quantum Tunneling
  • · Replies 2 ·
Replies
2
Views
9K
Graduate Double slit experiment: counter?
  • · Replies 15 ·
Replies
15
Views
5K
Graduate Dirac Equation for a moving square potential well
  • · Replies 2 ·
Replies
2
Views
5K
Graduate Effect of the raising operator on an l=1 m=1 state
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Examining Violations of Hund's Rule in Electron Configurations
  • · Replies 7 ·
Replies
7
Views
21K
Graduate Probability of simultaneous measurements of momentum and position
  • · Replies 3 ·
Replies
3
Views
3K
Graduate What happen to a single photon entering a PBS.
  • · Replies 9 ·
Replies
9
Views
4K
Graduate What is the Significance of the Overall Phase in Quantum Mechanics?
  • · Replies 6 ·
Replies
6
Views
7K
Graduate Why Normalization Factors in Fourier Transform Pairs?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Speed of Light: Does a Photon Move Faster or Slower?
  • · Replies 5 ·
Replies
5
Views
3K
High School Are electrons wave or a particle?
  • · Replies 80 ·
3
Replies
80
Views
13K
Undergrad Figuring out the frequency of light using a solar cell
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Energy & Time, Momentum & Position
  • · Replies 7 ·
Replies
7
Views
3K
Graduate What part of the Dirac field is anticommutating?
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Discrete energy level of schrodinger's equation
  • · Replies 8 ·
Replies
8
Views
6K
Graduate The question of the CPT(coherent population trapping)
  • · Replies 1 ·
Replies
1
Views
2K
Graduate How can a point particle spin?
  • · Replies 24 ·
Replies
24
Views
8K
Graduate Optical polarization conversion
  • · Replies 1 ·
Replies
1
Views
2K
Graduate What is the shape of an electron in an atom?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Peskin Schröder Chapter 7.1 Field Strength Renormalization
  • · Replies 3 ·
Replies
3
Views
6K
Graduate Understanding Randomness in Quantum Mechanics (QM)
  • · Replies 11 ·
Replies
11
Views
7K
Graduate Bound states in relativistic quantum mechanics
  • · Replies 1 ·
Replies
1
Views
2K
Graduate General Modern Physics questions
  • · Replies 2 ·
Replies
2
Views
4K
Graduate Lowest-order correction for the bendulum
  • · Replies 1 ·
Replies
1
Views
2K
Graduate What is principal value integral?
  • · Replies 3 ·
Replies
3
Views
8K
Graduate Sum of two slater determinants
  • · Replies 7 ·
Replies
7
Views
5K
Undergrad Are Atoms Real? Investigating the Existence of Subatomic Particles
  • · Replies 35 ·
2
Replies
35
Views
38K
Graduate Classification of schrodinger equation?
  • · Replies 4 ·
Replies
4
Views
4K
Graduate Is the Frequency of an Electron Realistic for Acceleration in an Accelerator?
  • · Replies 12 ·
Replies
12
Views
7K
Graduate The Mystery of the Schroedinger Equation in a Magnetic Field
  • · Replies 9 ·
Replies
9
Views
6K
Graduate Bell Theorem and probabilty theory
  • · Replies 115 ·
4
Replies
115
Views
25K
Graduate Does anyone know about Quantum Computing?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate What the differ between eigenstate and eigenfunction ?
  • · Replies 1 ·
Replies
1
Views
11K
Graduate Determining wether consciousness is required in the double-slit experiment
  • · Replies 10 ·
Replies
10
Views
4K
Graduate Gaussian Integral Identity with Grassmann Numbers
  • · Replies 10 ·
Replies
10
Views
13K
Graduate QFT question about algebra of charges
  • · Replies 20 ·
Replies
20
Views
4K