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 Understanding Uncertainty Principle

  • mananvpanchal
  • · Replies 5 ·
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5

Graduate What the heck is meant by Pauli force/effect ?

  • nonequilibrium
  • · Replies 4 ·
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4

Graduate Can Entangling Separate Photon Pairs Affect Previously Measured Photons?

  • StevieTNZ
  • · Replies 4 ·
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4

Graduate Generating function of n-point function

  • guilhermef
  • · Replies 1 ·
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1

Graduate Spin 1/2 and 720 degree rotation

  • gespex
  • · Replies 1 ·
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1

Graduate Quantum Mechanics to a Newcomer

  • Xyius
  • · Replies 9 ·
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9

High School Slit pattern, vertical or horizontal?

  • lightconstant
  • · Replies 5 ·
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5

Graduate How Does Reflection Affect Photon Phase Shift in Quantum Experiments?

  • LarryS
  • · Replies 4 ·
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4

Graduate In electron/photon interactions does the handedness of the photon matter?

  • Edward Milne
  • · Replies 2 ·
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2

Graduate What Causes Quantum Locking in Levitation Videos?

  • rshalloo
  • · Replies 4 ·
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4

Graduate Questions in Weinberg The Quantum Theory of Fields Vol 1

  • wphysics
  • · Replies 3 ·
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3

Graduate Can changes in spring constant affect the eigenstates of a harmonic oscillator?

  • hokhani
  • · Replies 4 ·
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4

High School Getting Started with Quantum Mechanics: Advice for High School Students

  • lordfox
  • · Replies 2 ·
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2

Graduate Plot Real & Imaginary Dielectric Function: Lorentz Model

  • jackchenx007
  • · Replies 2 ·
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2

Graduate What Is the Wavelength of the Earth According to De Broglie's Equation?

  • 96hicksy
  • · Replies 3 ·
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3

Graduate How can reality be non local and its expression be local.

  • dpa
  • · Replies 2 ·
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2

Graduate Where does the radial probability of an electron equation come from?

  • brock321
  • · Replies 1 ·
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1

Graduate What makes a particle distinguishable from another one? It seems, two

  • Khashishi
  • · Replies 4 ·
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4

Graduate How Does Proximity to Other Atoms Affect Electron Orbit Transitions?

  • Jobee
  • · Replies 4 ·
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4

Graduate Can Randomness and Causality Coexist Logically?

  • jadrian
  • · Replies 55 ·
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55

Graduate Experimentally, how well tested is Born's rule?

  • dEdt
  • · Replies 2 ·
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2

Graduate The Singularity: A Fundamental State of Energy Before the Big Bang?

  • El Topo
  • · Replies 1 ·
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1

Graduate Does the weak force violate conservation of charge?

  • a dull boy
  • · Replies 21 ·
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21

Graduate Density matrix elements, momentum basis, second quantization

  • Final ansatz
  • · Replies 5 ·
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5

Graduate How can we expand product of two currents into series?

  • ndung200790
  • · Replies 5 ·
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5

Graduate Does Energy Redistribution in Wave Interference Happen Superluminally?

  • peter.ell
  • · Replies 3 ·
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3

Graduate Looking for: Schrödinger equation in terms of phase and modulus

  • nonequilibrium
  • · Replies 14 ·
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14

Graduate Why is Hadronic Vacuum Polarization a Matrix Element of Current Products?

  • ndung200790
  • · Replies 1 ·
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1

Graduate Relation between spontaneous emission, absorption and re-emission

  • fisico30
  • · Replies 1 ·
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1

Graduate Mystery of the lost degree of freedom in a gauge theory

  • TriTertButoxy
  • · Replies 6 ·
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6

Graduate Is stokes vector can be a quantum state?

  • ftqpachino
  • · Replies 3 ·
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3

Graduate Can a Temporary 'Mark' Affect the Double Slit Interference Pattern?

  • sumosanta
  • · Replies 18 ·
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18

Graduate Scattering - quantum electrodynamics

  • lntz
  • · Replies 1 ·
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Graduate Bell's Theorem - Easy explained

  • Edgardo
  • · Replies 22 ·
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22

Graduate Building a Lagrangian out of Weyl spinors

  • Chopin
  • · Replies 6 ·
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6

Graduate Tensor Operators: Find an Accessible Textbook & Explanations

  • Jolb
  • · Replies 2 ·
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2

Graduate Delayed double slit experiment

  • Sergionuevo
  • · Replies 6 ·
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6

Graduate Perturbation of 2D Oscillator along one axis

  • Holychikenz
  • · Replies 1 ·
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1

Graduate Aspect's experiment, bell's inequality, neutrino faster than 'c'.

  • sg001
  • · Replies 5 ·
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High School The Requirement of integer orbitals

  • Phyzwizz
  • · Replies 3 ·
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3

Graduate Mass/Energy of W Boson: Where Does it Go?

  • Sagan369963
  • · Replies 9 ·
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9

Graduate Can a potential act in a small region of spacetime?

  • Spinnor
  • · Replies 4 ·
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4

Graduate Is the Hydrogen Atom Stable in Relativistic Quantum Theory?

  • Jano L.
  • · Replies 41 ·
2
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41

Graduate Path Integral/Canonical Quantization of Gauge Theories

  • TriTertButoxy
  • · Replies 10 ·
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10

Graduate Quantum entanglement,Is it possible

  • adarshtr
  • · Replies 3 ·
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3

Graduate Is The Dual Nature of Mass Affecting Astronaut Brains in Space?

  • sharma_satdev
  • · Replies 3 ·
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3

Undergrad When electrons jump why photon

  • jd12345
  • · Replies 7 ·
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7

Graduate Why isn’t time-dependent Schrodinger equation separable?

  • HJ Farnsworth
  • · Replies 5 ·
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5

Graduate Create Boson: Know Pion vs Other?

  • intervoxel
  • · Replies 3 ·
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3

Graduate Breit equation/relativistic QM and simplifications

  • Amok
  • · Replies 3 ·
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3

Graduate How Quantum Theory Explains Human Consciousness

  • sytstp
  • · Replies 5 ·
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5

Graduate Can I assume this is a travelling wave?

  • merry
  • · Replies 1 ·
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1

Graduate How can a particle have infinite positions in quantum mechanics?

  • StevieTNZ
  • · Replies 29 ·
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29

Graduate What are the states and equations of the Gluon Octet in SU(3)?

  • Michio Cuckoo
  • · Replies 1 ·
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1

Graduate How to debunk new age Quantum physics crankery

  • forests
  • · Replies 12 ·
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12

Graduate Question on quantum entanglement mechanism

  • smithnya
  • · Replies 3 ·
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3

Graduate Some questions regarding decoherence

  • tom.stoer
  • · Replies 14 ·
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14

Graduate Heisenberg Uncertainty Principle

  • StevieTNZ
  • · Replies 9 ·
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9

Graduate Energies of a particle in a box vs. free particle?

  • fhqwgads2005
  • · Replies 5 ·
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5

Graduate Orbital Angular Momentum Origin

  • widderjoos
  • · Replies 3 ·
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3

Graduate Photon classical or nonclassical object?

  • waterfall
  • · Replies 5 ·
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5

Graduate Semiclassical descriptions of atom-light interaction

  • Niles
  • · Replies 3 ·
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3

Graduate Is there empty space with null energy?

  • avery
  • · Replies 2 ·
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2

Graduate Rotational Quantum Number J: Understanding Its Role in Microwave Spectroscopy

  • Chemist20
  • · Replies 2 ·
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2

Graduate Question (not homework): Quantum phenomena and the Macroscopic world

  • FisiksIdiot
  • · Replies 3 ·
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3

Graduate How is the length of a particle in a box polyene determined?

  • Chemist20
  • · Replies 5 ·
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5

Graduate How fast do wave packets typically spread out?

  • nonequilibrium
  • · Replies 1 ·
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1

Graduate Is there such a thing as an anti-gluon?

  • Michio Cuckoo
  • · Replies 5 ·
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5

Graduate Quantum Tunneling and Deuterium Fusion

  • Somerschool
  • · Replies 19 ·
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19

Graduate Purely electric quantum tunneling fusion

  • Stanley514
  • · Replies 2 ·
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2

Graduate Can You Change Photon Polarization Without Affecting Entanglement?

  • jadrian
  • · Replies 7 ·
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7

Undergrad Do Electrons Exhibit Electromagnetic Fields Like Photons?

  • jd12345
  • · Replies 2 ·
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2

Graduate Total nuclear spin of deuteron

  • Demon117
  • · Replies 1 ·
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1

Graduate How Do Operators and Integrals Connect in Quantum Mechanics?

  • hello45
  • · Replies 7 ·
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7

Graduate Bell's Theorem and the detector

  • San K
  • · Replies 4 ·
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4

Graduate Helps on understanding different representation transformations

  • luxiaolei
  • · Replies 1 ·
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1

Graduate Renormalization Group for dummies

  • waterfall
  • · Replies 47 ·
2
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47

Graduate Entanglement/Nonlocality question

  • Jewlian
  • · Replies 6 ·
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6

Graduate Why triplet state |1,0> is considered parallel ?

  • harrists
  • · Replies 2 ·
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2

Undergrad Uncertainty principle and particle accelerators

  • CSinUK
  • · Replies 6 ·
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6

Graduate How Can a Beginner Start Learning Quantum Physics?

  • sMan
  • · Replies 4 ·
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4

Graduate Unraveling the Mysteries of Quantum Entanglement: Implications and Applications

  • fellupahill
  • · Replies 9 ·
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9

Graduate What is the definition of integration on operators?

  • qasdc
  • · Replies 9 ·
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9

Graduate Understanding the Scully and Yoon-Ho Experiment: Interference in D0

  • yuvalg1
  • · Replies 9 ·
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9

Graduate Can Entangled Photons Be Used for Instantaneous Morse Code Communication?

  • jadrian
  • · Replies 2 ·
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2

Undergrad Understanding the Relationship Between Energy and Frequency

  • jd12345
  • · Replies 2 ·
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2

Graduate Does the Quantum Zeno Effect Contradict the Heisenberg Uncertainty Principle?

  • jadrian
  • · Replies 9 ·
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9

Graduate Why can't the wavefunction equal infinity?

  • LogicX
  • · Replies 2 ·
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2

Graduate Derivation of Fowler-Nordheim current density

  • zeus_the_almighty
  • · Replies 9 ·
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9

Graduate Infinite Energy beneath Quantum Vacuum?

  • waterfall
  • · Replies 6 ·
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6

Graduate Understanding Force on an Atom in the Heisenberg Picture of Quantum Mechanics

  • Niles
  • · Replies 1 ·
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1

Graduate Number of components of Dirac spinor in arbitrary dimensions.

  • arroy_0205
  • · Replies 8 ·
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8

Graduate Relationship between electron and quark charge

  • a dull boy
  • · Replies 7 ·
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7

Graduate Wigner's Theorem/Antiunitary Transformation

  • thoughtgaze
  • · Replies 4 ·
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4

Graduate C is infinity thus electrons can be in two places at once

  • dadnoonan
  • · Replies 12 ·
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12

Graduate Observables and Commutation (newbie questions?)

  • JDoolin
  • · Replies 37 ·
2
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37

Graduate Why not diffeomorphism group representation theory?

  • lugita15
  • · Replies 28 ·
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28

Graduate Photon interaction during refraction

  • harrylin
  • · Replies 3 ·
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3

Graduate Gauge invariant Lagrangian: unique?

  • electroweak
  • · Replies 2 ·
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2

Graduate What is the Landau pole and how does it relate to the coupling constant in QED?

  • waterfall
  • · Replies 3 ·
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3