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.

Sub-forums

Quantum Interpretations and Foundations

How valid is the indivisible interpretation of quantum mechanics?
1.3K threads
Graduate How valid is the indivisible interpretation of quantum mechanics?
Graduate Debunking the Newtonian Model: Why Photons and Basketball Comparison Falls Short
  • sanman
  • · Replies 4 ·
Replies
4
Graduate Energy quantization in schrodinger equation
  • suku
  • · Replies 1 ·
Replies
1
Graduate Commutator of the density operator
  • keen23
  • · Replies 3 ·
Replies
3
Graduate Is 137 the Maximum Number of Atoms That Can Be Made?
  • The_Thinker
  • · Replies 16 ·
Replies
16
Undergrad Electron Movement: Helium Model Explained
  • staetualex
  • · Replies 14 ·
Replies
14
Graduate Explain Adjoint of Commutator Identity in Second Quantization
  • tommy01
  • · Replies 3 ·
Replies
3
Graduate Confusion about getting uncertainty by using differetiation.
  • kof9595995
  • · Replies 6 ·
Replies
6
Graduate Aren't Entanglement & Uncertainty mutually exclusive?
  • mjcguest
  • · Replies 22 ·
Replies
22
Undergrad Why does m*c*c not equal 0 in the theory of relativity?
  • Zong xiaobo
  • · Replies 14 ·
Replies
14
Graduate Mass falling to ground (uncertainty principle)
  • naggy
  • · Replies 5 ·
Replies
5
Undergrad What is the Nature of Photons?
  • haloshade
  • · Replies 52 ·
2
Replies
52
Graduate Is time reversible in Quantum Math?
  • jimzarry
  • · Replies 1 ·
Replies
1
Graduate If i stand still , you cant find me
  • noianiz
  • · Replies 3 ·
Replies
3
Graduate What exactly is the solution for principle of locality and speed of light?
  • menniandscience
  • · Replies 70 ·
3
Replies
70
Graduate Difference between SU(N)xU(1) and U(N)?
  • RedX
  • · Replies 11 ·
Replies
11
Graduate Quick question on the Schrodinger symmetry group
  • haushofer
  • · Replies 11 ·
Replies
11
Graduate Wave Properties of Electrons and their Atomic Orbitals
  • daisey
  • · Replies 29 ·
Replies
29
Graduate Have one photon at a time edge diffraction experiments been conducted?
  • dlgoff
  • · Replies 19 ·
Replies
19
Graduate Naive picture of understanding Spin-Orbit Coupling
  • sokrates
  • · Replies 3 ·
Replies
3
Graduate Quantized energy in infinite potential well
  • rozan977
  • · Replies 9 ·
Replies
9
Graduate Physical Significance of the Product Av for Non-Eigenvector States
  • snoopies622
  • · Replies 4 ·
Replies
4
Graduate Poisson brackets, commutators, transformations
  • The_Duck
  • · Replies 3 ·
Replies
3
Graduate A newbies question on randomness.
  • Owen-
  • · Replies 1 ·
Replies
1
Graduate Can we predict element decay using Quantum mechanics?
  • physics_head
  • · Replies 12 ·
Replies
12
Graduate Solution to the Problem of Correlation of Matter and Field
  • IlyaStavinsky
  • · Replies 1 ·
Replies
1
Undergrad Could someone explain the Schrodinger's Cat experiment to me?
  • DarkStalker
  • · Replies 38 ·
2
Replies
38
Graduate Uncertainty principle and limit of momentum.
  • kof9595995
  • · Replies 5 ·
Replies
5
Graduate What are postulates and what are derived?
  • I_am_learning
  • · Replies 3 ·
Replies
3
Graduate Is anything physically impossible in quantum mechanics?
  • Loren Booda
  • · Replies 10 ·
Replies
10
Graduate Bundle of tiny randomly orientated magnets through a Stern-Gerlach app
  • ajw1
  • · Replies 11 ·
Replies
11
Graduate Quantum harmonic oscillator minimum energy
  • kof9595995
  • · Replies 11 ·
Replies
11
Undergrad Stimulated Emission: Intuitive Explanation Needed
  • sokrates
  • · Replies 1 ·
Replies
1
Graduate Why Are All Photons in a Laser Beam Coherent?
  • huyen_vyvy
  • · Replies 4 ·
Replies
4
Graduate Thermodynamic Basis of the Exclusion Principle
  • Modey3
  • · Replies 8 ·
Replies
8
Graduate What is the Source of the Positive Charge of a Proton?
  • spacebear2000
  • · Replies 11 ·
Replies
11
  • Poll Poll
Graduate Debate Macroscopic Realism: Define or Disbelieve?
  • alexepascual
  • · Replies 84 ·
3
Replies
84
Undergrad Planck's Constant: Determining Avogadro Number
  • johncena
  • · Replies 2 ·
Replies
2
Graduate Self-reference, measurment and entanglement
  • Albert V
  • · Replies 1 ·
Replies
1
Graduate How Does Heisenberg's Microscope Observe Electrons Outside the Aperture Angle?
  • Hippasos
  • · Replies 2 ·
Replies
2
Graduate Controlling Spin of an Entangled Particle, Causality
  • piezas
  • · Replies 17 ·
Replies
17
Undergrad Carrier Mobility of a semiconductor
  • NJunJie
  • · Replies 2 ·
Replies
2
Graduate Electromagnetic fields around neutrons?
  • espen180
  • · Replies 3 ·
Replies
3
Graduate Quantum Gravity Research: Bohmienne Quantum Gravity Documentation
  • cosmoskab
  • · Replies 3 ·
Replies
3
Graduate The wave equation in a Black Hole.
  • wofsy
  • · Replies 9 ·
Replies
9
Graduate Bell inequality tests questions
  • Wangf
  • · Replies 3 ·
Replies
3
Graduate Correlation Functions in Path Integral Formulation of QFT
  • maverick280857
  • · Replies 2 ·
Replies
2
Graduate What is a measurement? (layperson question)
  • Galteeth
  • · Replies 7 ·
Replies
7
Graduate Spin & Energy Levels: Can a Proton Have One Energy Level?
  • likephysics
  • · Replies 1 ·
Replies
1
Graduate Does Quantum Physics Challenge Our Understanding of Reality?
  • Kyuuketsuki
  • · Replies 14 ·
Replies
14
Graduate Have magnetic monopoles been detected?
  • waht
  • · Replies 1 ·
Replies
1
Graduate Is there slight evidence we live in block universe?
  • Wangf
  • · Replies 4 ·
Replies
4
Can anyone assist with obtaining a copy of Birgit Dopfer's Phd thesis?
  • alexepascual
  • · Replies 2 ·
Replies
2
Graduate Hermitian operators in schrodinger eqn.
  • RedX
  • · Replies 1 ·
Replies
1
Graduate Time-Energy Uncertainty Principle: Info & Derivation
  • Rajini
  • · Replies 7 ·
Replies
7
Graduate Average energy of a harmonic oscillator
  • Rajini
  • · Replies 1 ·
Replies
1
Graduate How Can a Single Vector Represent Multi-Dimensional Quantum Information?
  • snoopies622
  • · Replies 3 ·
Replies
3
Graduate Velocity of spin & electron velocity ?
  • Bjarne
  • · Replies 4 ·
Replies
4
Graduate Orthogonality of wave function of finite potential well
  • xieyi
  • · Replies 1 ·
Replies
1
Graduate Can Negative Probabilities Unveil Inconsistencies in MWI Branches?
  • Dmitry67
  • · Replies 37 ·
2
Replies
37
Graduate What happens to the wave function after an operator transformation?
  • roya
  • · Replies 4 ·
Replies
4
Graduate Velocity dependent fermion number?
  • blue2script
  • · Replies 2 ·
Replies
2
Graduate What is actually phase velocity?
  • rozan977
  • · Replies 3 ·
Replies
3
High School Albert Einstein & Quantum Mechanics
  • jhooper3581
  • · Replies 13 ·
Replies
13
Graduate QM: Measurement Operation & Operators Explained
  • svnaras
  • · Replies 36 ·
2
Replies
36
Graduate How Does the Uncertainty Principle Apply to Electron Beams and Gas Molecules?
  • manofphysics
  • · Replies 4 ·
Replies
4
Graduate How to check if Lagrangian is parity invariant?
  • RedX
  • · Replies 6 ·
Replies
6
Graduate Does a beam of entangled photons create interference fringes?
  • bruce2g
  • · Replies 53 ·
2
Replies
53
Graduate What exactly is barrier tunneling and potential barrier?
  • rozan977
  • · Replies 6 ·
Replies
6
Graduate Commutator of kinetic energy and potential energy
  • Tipi
  • · Replies 2 ·
Replies
2
Graduate Does a position operator exist?
  • chrisphd
  • · Replies 11 ·
Replies
11
Graduate Elastic scattering and momentum conservation
  • r_tea
  • · Replies 3 ·
Replies
3
Graduate Quantum Holograms: What do you think of skepdic.com?
  • Galteeth
  • · Replies 2 ·
Replies
2
Graduate Please suggest a book including cross section
  • KFC
  • · Replies 1 ·
Replies
1
Graduate Varying cross section superconductor
  • Relena
  • · Replies 1 ·
Replies
1
Finding Resources for Beginners
  • Hippasos
  • · Replies 5 ·
Replies
5
Graduate Young's Light-Double Slit Experiment: Is There a Minimum Ratio?
  • horazonblade
  • · Replies 5 ·
Replies
5
Graduate Measuring Position of a Quantum Mechanical Particle
  • chrisphd
  • · Replies 1 ·
Replies
1
Graduate Wave Functions: Understanding Moving Particles
  • manofphysics
  • · Replies 4 ·
Replies
4
Graduate Moving from Dirac equation to Lagrangian density
  • GreyBadger
  • · Replies 5 ·
Replies
5
Graduate Sequential stern-gerlach experiment
  • svnaras
  • · Replies 3 ·
Replies
3
Graduate Wave function collapse and entanglement
  • zonde
  • · Replies 12 ·
Replies
12
Graduate Need Help Understanding Misner Space Terminology
  • Quantum Copy
  • · Replies 1 ·
Replies
1
Graduate IS THIS the Heisenberg uncertainity principle?
  • mahela007
  • · Replies 5 ·
Replies
5
Graduate Why doesn't the electron have a definite position?
  • mahela007
  • · Replies 8 ·
Replies
8
Graduate Matter Waves: What Does Frequency Represent?
  • snoopies622
  • · Replies 4 ·
Replies
4
Graduate Dirac conserved current vs Klein-Gordon conserved current
  • pellman
  • · Replies 14 ·
Replies
14
Graduate Can the Pendulum of Time Model Explain Double-Slit Experiment Results?
  • Somerschool
  • · Replies 2 ·
Replies
2
Graduate Attractive Forces: Delta V, E', and E0 Explained
  • Niles
  • · Replies 2 ·
Replies
2
Graduate Metric and Covariant Derivative
  • TriTertButoxy
  • · Replies 2 ·
Replies
2
Graduate Azimuthal quantum number,l and magnetic quantum number, m
  • JayKo
  • · Replies 3 ·
Replies
3
Graduate Formula for Amplitude of a Photon
  • penguin007
  • · Replies 9 ·
Replies
9
Graduate Qutrit Teleportation: Understand How it Works with Nielson and Chuang
  • damo642
  • · Replies 2 ·
Replies
2
Graduate Can Isolation Turn You Into a Wave Function?
  • Wangf
  • · Replies 1 ·
Replies
1
Graduate Can We Construct a Detector for Precise Arrival Time of Monochromatic Photons?
  • LarryS
  • · Replies 9 ·
Replies
9
Graduate How Can Variational Calculus Enhance Your Understanding of Quantum Mechanics?
  • aliaze1
  • · Replies 3 ·
Replies
3
Graduate How is entanglement not weird ?
  • fereopk
  • · Replies 26 ·
Replies
26
Undergrad Does a Photon Bounce? - Learn How Photons Interact with Mirrors
  • worwhite
  • · Replies 31 ·
2
Replies
31
Graduate Does the Uncertainty Principle Suggest a Predetermined Universe?
  • mikesaxon4
  • · Replies 6 ·
Replies
6
Graduate Photon absorption and probability of atomic electron transition
  • PhysicsAm55
  • · Replies 3 ·
Replies
3
Graduate Two-Photon Physics: Creation of Matter & Photon Absorption
  • NJV
  • · Replies 7 ·
Replies
7