Quantum Physics Forum

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.

Threads

Graduate Elements in a Vacuum: What is the Nothingness?

  • cody628496
  • · Replies 9 ·
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9

Undergrad Can a single photon have different kinds of polarization?

  • San K
  • · Replies 2 ·
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2

Graduate Questions about Bell's Theorem

  • San K
  • · Replies 3 ·
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3

Graduate What is the nature of photon spin and how does a polarizer affect it?

  • San K
  • · Replies 3 ·
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3

Graduate Understanding Classical & Quantum Coherence in Optics

  • valleyman
  • · Replies 2 ·
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2

Graduate Clarification between electron cloud and a wave

  • beantwin
  • · Replies 3 ·
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3

Graduate Photoelectric Effect after Passing through Double Slit

  • LightNg
  • · Replies 7 ·
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7

Graduate What is the significance of generalized angular momentum in quantum mechanics?

  • snoopies622
  • · Replies 8 ·
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8

Graduate Multiple double slits in series (not parallel)

  • San K
  • · Replies 1 ·
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1

Graduate Does Observation Affect Quantum Particle Behavior?

  • idknothing
  • · Replies 7 ·
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7

Undergrad Heisenberg uncertainity principle

  • nouveau_riche
  • · Replies 8 ·
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8

Graduate Tensor gymnastic in Noether's Current

  • Rizlablack
  • · Replies 6 ·
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Graduate Is the quantum realm well-defined?

  • bostonnew
  • · Replies 5 ·
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Graduate Free particle - Eigenstates expansion

  • tunafish
  • · Replies 7 ·
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7

Graduate Solving a Math Mystery: Wave Functions & Probability Density

  • Unkraut
  • · Replies 3 ·
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3

Graduate Can Particles Retain Information at Absolute Zero?

  • nouveau_riche
  • · Replies 13 ·
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13

Graduate Is there any theoretical way to have physics work not like quantum mechanics?

  • Squippel
  • · Replies 35 ·
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Graduate Does quantum entanglement allow information to travel faster than light?

  • byron178
  • · Replies 112 ·
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Graduate What Occurs When an Atom's Nucleus Disappears?

  • Bravodhan
  • · Replies 4 ·
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4

Graduate Does the Quantization of Space-Time Imply a Finite Number of Spatial Locations?

  • nomadreid
  • · Replies 5 ·
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5

Graduate Why do they only consider S-matrix in QFT?

  • ndung200790
  • · Replies 1 ·
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1

Graduate Perhaps we do see quantum behavior at the macroscopic scale

  • karatepig
  • · Replies 40 ·
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Graduate Are Buckyballs Entangled in Double Slit Experiments?

  • San K
  • · Replies 3 ·
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3

Undergrad What is a negative magnetic moment?

  • zincshow
  • · Replies 1 ·
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Graduate Phase shift of tunneling particle

  • FunkyDwarf
  • · Replies 3 ·
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3

Graduate Question about Orbitals in an Atom

  • CRichard
  • · Replies 8 ·
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8

Graduate Entanglement in delayed choice quantum eraser (DCQE)

  • San K
  • · Replies 6 ·
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6

Graduate Need help for solving an operator equation

  • TRXW
  • · Replies 1 ·
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1

Graduate QED and light traveling in straight lines

  • dEdt
  • · Replies 4 ·
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4

Graduate What is the objective of renormalization group theory?

  • ndung200790
  • · Replies 7 ·
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7

Graduate Time-dependant perturbation theory & transitions

  • elemental09
  • · Replies 8 ·
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8

Graduate HUP Greeting: Meaning & Opinions

  • DarkDrag0nite
  • · Replies 20 ·
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20

Graduate Is the electron's energy changed when the infinite potential wall moves?

  • Younghun park
  • · Replies 1 ·
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Graduate A question about the minimal vertex possible

  • ariel97
  • · Replies 5 ·
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5

Graduate I really need a definitive answer to the HUP/vacuum/pair production problem.

  • SeventhSigma
  • · Replies 3 ·
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3

Graduate Commutative operators and obserables

  • blakegriffin1
  • · Replies 3 ·
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3

Graduate Feynman paths and double slit experiment

  • hammock
  • · Replies 27 ·
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27

Graduate A query on the (old) motivation for renormalizable theories

  • metroplex021
  • · Replies 5 ·
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5

Undergrad Dual Vector Space: Simple Explanation

  • quietrain
  • · Replies 4 ·
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4

Graduate Cluster radioactivity- want to know more?

  • logearav
  • · Replies 3 ·
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3

Undergrad Black Body Radiation & how it works?

  • KuroAlchemist
  • · Replies 10 ·
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10

Graduate 'Quantum grains' smaller than 'Planck length'

  • baguyette
  • · Replies 28 ·
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28

Graduate Recommended Texts for Self-Studying QFT?

  • migwing007
  • · Replies 6 ·
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6

High School Hi everybody,this is my first post. So sorry for the possible

  • matthew82
  • · Replies 3 ·
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Graduate Space/time expansion and quantum world

  • nouveau_riche
  • · Replies 3 ·
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3

Graduate Can the Mach-Zehnder interferometer be used as a which-way detector for photons?

  • San K
  • · Replies 1 ·
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Graduate Klein-Gordon field is spin-0: really?

  • jjustinn
  • · Replies 6 ·
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6

Graduate Spin Angular Momentum Conservation in the Stern-Gerlach Experiment

  • FirstYearGrad
  • · Replies 4 ·
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4

Graduate How does Quantum Physics solve the ultraviolet catastrophe?

  • quebecois22
  • · Replies 2 ·
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2

Undergrad What is the Correct Formula for Calculating Angular Momentum in Bohr's Theory?

  • vkash
  • · Replies 4 ·
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Graduate Questions about Schrodinger's equation?

  • Makveger
  • · Replies 3 ·
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Graduate Rotation group representation and pauli matrices

  • 01030312
  • · Replies 7 ·
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7

Graduate Eigenvalues of Hermitian opertors

  • migwing007
  • · Replies 8 ·
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8

Graduate Nuetron Interferometry in Ballentine

  • WiFO215
  • · Replies 15 ·
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15

Graduate Thoughts on realistic model of electon Zitterbewegung

  • johne1618
  • · Replies 1 ·
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Graduate Quantum entanglement and Two slit experiment

  • itsonelouder
  • · Replies 30 ·
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Graduate Electron diffraction diameter measurement

  • hawaiifiver
  • · Replies 1 ·
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Graduate Fermat's Principle Explained by Feynman

  • dEdt
  • · Replies 3 ·
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3

Undergrad Salt Water Swimming Pool Question.

  • Infrasound
  • · Replies 2 ·
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2

Graduate Unceartianity and virtual pions.

  • Brainguy
  • · Replies 7 ·
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7

Graduate Photon flight times and the uncertainty principle

  • kurros
  • · Replies 3 ·
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3

Graduate Phase shift upon external reflection

  • DeShark
  • · Replies 15 ·
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15

Graduate So, I know that spin is very important in quantum mechanics/elementary

  • CyberShot
  • · Replies 58 ·
2
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58

Graduate Time invariance of Schrodinger equation

  • Avijeet
  • · Replies 2 ·
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2

Graduate Vector Representations of Quantum States

  • syberraith
  • · Replies 15 ·
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15

Graduate A question on Virtual Photons, and QED

  • mattthecat
  • · Replies 1 ·
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1

Graduate First Quantum Computer now Commerical?

  • piareround
  • · Replies 10 ·
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10

Graduate A question about wave function

  • coki2000
  • · Replies 4 ·
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4

Graduate States of Composite Systems, p. 216: Ballentine

  • jfy4
  • · Replies 4 ·
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4

Graduate Ryder QFT 2nd ed. page 341 misprint?

  • melezmelez
  • · Replies 1 ·
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1

Graduate Double-Slit time reversal leads to fractal multiple universe theory?

  • bernsten69
  • · Replies 2 ·
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2

Graduate Relativistic corrections to Schrodinger's equation

  • jfy4
  • · Replies 13 ·
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13

Graduate Quantum phenomena as emergent property in networked computer simulation?

  • looka
  • · Replies 7 ·
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7

Graduate Can Quantum Mechanics Be Taught Without Relying on Representations?

  • Gerenuk
  • · Replies 35 ·
2
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35

Would you buy a quantum table?

  • ZapperZ
  • · Replies 2 ·
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2

Graduate How Do Dirac Delta Functions Relate to Quantum Mechanics and Eigenvalues?

  • Rasalhague
  • · Replies 8 ·
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8

Graduate Hartle: QM of Individual Systems (1968)

  • strangerep
  • · Replies 6 ·
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6

Graduate Half-Integer Spin: Explaining Discontinuity's Lack of Impact

  • paweld
  • · Replies 9 ·
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9

Graduate Solving the Paradox of Quantum Mechanics & Special Relativity

  • chwie
  • · Replies 33 ·
2
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33

Graduate Learning Spherical Harmonics & Angular Momentum

  • Cruikshank
  • · Replies 10 ·
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10

Graduate How to calculate Clebsch-Gordon coefficients

  • Avijeet
  • · Replies 1 ·
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1

Graduate Quantum Entanglement: Explaining Distance Effects

  • Myslius
  • · Replies 7 ·
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7

Graduate Tunneling effect or barrier penetrability

  • logearav
  • · Replies 2 ·
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2

Graduate Can A White Photon Exist?not so easy to Answer

  • chemistryknight
  • · Replies 95 ·
4
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95

Graduate Is Quantum Entanglement Verifiable and Misrepresented in Mainstream Media?

  • afstgl
  • · Replies 6 ·
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6

Does Quantum Mechanics embrace/perpetuate eastern religions?

  • agentredlum
  • · Replies 12 ·
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12

Graduate What maths in preparation for quantum mechanics

  • NeilB
  • · Replies 10 ·
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10

Graduate Interaction Picture: Explaining H = H_o + H_int

  • creepypasta13
  • · Replies 8 ·
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8

Graduate Quantum Physics: Theory of Entanglement

  • Allojubrious
  • · Replies 13 ·
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13

Graduate Klien Gordon Equation solution under Lorentz transformation

  • McLaren Rulez
  • · Replies 4 ·
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4

Graduate What is the difference between classical and quantum law?

  • ndung200790
  • · Replies 11 ·
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11

Graduate About cosmological quantum rectangular barrier potential

  • Younghun park
  • · Replies 5 ·
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5

Graduate What are the key theorems on the mathematics of symmetries in quantum mechanics?

  • Fredrik
  • · Replies 28 ·
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28

Graduate Can Quantum Error Correction Revolutionize Computing?

  • phmzk
  • · Replies 5 ·
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5

Graduate Deriving Moseley's Law Using QM/QFT

  • lovetruth
  • · Replies 1 ·
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1

Graduate Quantum mechanics and electrons.

  • quantizedzeus
  • · Replies 15 ·
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15

Graduate Do Quantum Particles Have Physical Volume or Are They Just Points of Energy?

  • rollcast
  • · Replies 2 ·
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2

Graduate How we see things, relating to Crystal field theory.

  • arkyy
  • · Replies 1 ·
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Graduate Bose-Einstein condensate and ions spin

  • jumpjack
  • · Replies 5 ·
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5

Graduate Question about interacting fields

  • creepypasta13
  • · Replies 1 ·
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1