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 Is retro-causality a science fact?

  • Soumya_M
  • · Replies 2 ·
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Graduate Tight Binding Description of Graphene (Hamiltonian and Overlap Matrix)

  • nyxynyx
  • · Replies 2 ·
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Graduate Q.M., Q.M.+Spin, Q.M.+Relativity; C^1, C^2, C^4, why ?

  • Spinnor
  • · Replies 3 ·
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Graduate Trouble understanding a Peskin-Schroeder text

  • praharmitra
  • · Replies 1 ·
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Graduate QED: the strange theory of light and matter. Light is made of particles ?

  • StudentJoseph
  • · Replies 20 ·
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Graduate Double-Slit Experiment - Clarification on 'Observation'

  • FeDeX_LaTeX
  • · Replies 4 ·
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Graduate Why is the product of Dirac spinors a 4x4 matrix?

  • tommy01
  • · Replies 3 ·
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Graduate Exchange Interaction - Helium

  • Master J
  • · Replies 1 ·
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Graduate Can We Solve for the Wave Function of Water?

  • rodsika
  • · Replies 3 ·
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Graduate Use of potentials in Quantum theory

  • spaghetti3451
  • · Replies 8 ·
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Graduate Uncertainty Calculation for Quantum Physics Lab | General Physics FAQ

  • Zarlucicil
  • · Replies 2 ·
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Undergrad What Is Resonant Energy Transfer and How Does It Work?

  • amaresh92
  • · Replies 1 ·
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Graduate How to solve this photoelectric equation involving specific heat capacity

  • Oloruntele
  • · Replies 1 ·
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Graduate Left and right-handed Weyl spinors

  • goronx
  • · Replies 4 ·
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Graduate Heisenberg's 1927 paper on uncertainty

  • Zorba
  • · Replies 4 ·
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Graduate What does it mean by independent (in gauge fixing of EM field)

  • kof9595995
  • · Replies 9 ·
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Graduate Definition of Hamiltonian Density & Deriving Energy Current

  • daudaudaudau
  • · Replies 30 ·
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Graduate Reformulating the Hamilton-Jacobi equation: A step-by-step guide

  • QuantumClue
  • · Replies 4 ·
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Graduate Does Schrodinger's Cat Paradox Suck?

  • yuiop
  • · Replies 157 ·
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Graduate In order for decoherence to work, does it require the second law of

  • StevieTNZ
  • · Replies 15 ·
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Graduate In stimulated emission how does the incident photon make release of

  • amaresh92
  • · Replies 2 ·
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Graduate Difference between 'Quantum theories'

  • StevieTNZ
  • · Replies 70 ·
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Graduate Simple harmonic oscillator - scaled variables

  • randybryan
  • · Replies 4 ·
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Graduate Has a loophole free test of Bell's inequalties been preformed yet?

  • hawaiifiver
  • · Replies 1 ·
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Graduate When Did Einstein First Encounter Quantum Entanglement?

  • thenewmans
  • · Replies 54 ·
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Graduate Is there a 'decision time' for quantum states to become fixed?

  • BernieM
  • · Replies 4 ·
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Graduate What is the functional iW[J] for a system with 2 sources or 3 sources?

  • Hymne
  • · Replies 4 ·
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Graduate What causes quantum coherence in superconductivity and superfluidity?

  • sci-guy
  • · Replies 4 ·
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Graduate Custom made Lagragian and Help Wanted

  • jfy4
  • · Replies 2 ·
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Graduate How Does Fock Space Relate to Particle Interactions and States?

  • Nano-Passion
  • · Replies 6 ·
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Graduate Time reversal symmetry breaking

  • hbaromega
  • · Replies 8 ·
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Graduate The effect of the magnet in a Stern-Gerlach experiment

  • Fredrik
  • · Replies 3 ·
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Graduate How Do You Determine Irreducible Representations for Group Transformations?

  • RedX
  • · Replies 1 ·
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Graduate Double slit experiment with detectors not recording

  • tofu_
  • · Replies 48 ·
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High School I am studying orbitals at school. They are very interesting and

  • edo1493
  • · Replies 6 ·
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Graduate Understanding Pressure in Quantum Mechanics: Energy, Momentum, and Flux

  • Dmitry67
  • · Replies 8 ·
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Watch "The Quantum Tamers" - Find Links Here

  • Joseph14
  • · Replies 8 ·
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Graduate Entanglement Experiments: Sources & Detection

  • yuiop
  • · Replies 4 ·
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Graduate How many pure numbers relate to elementary particles?

  • ribbie
  • · Replies 7 ·
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Graduate Quantizing the EM-Field: Eigenvalues Explained

  • Niles
  • · Replies 1 ·
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Graduate Uncertainty Principle Equations

  • erok81
  • · Replies 11 ·
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Graduate Time-reversal operator for fermions (Sakurai)

  • Sdakouls
  • · Replies 1 ·
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Graduate BRS operator, ghost fields, Grassmann numbers

  • christodouloum
  • · Replies 10 ·
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Graduate Electrostatic energy in annihilation process

  • FredMadison
  • · Replies 7 ·
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7

Undergrad Hydrogen Spectra: Electron Jumping & Emitting Lines

  • Bassalisk
  • · Replies 6 ·
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Graduate What is the concept of nonlocality in quantum mechanics?

  • uzername
  • · Replies 59 ·
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Graduate What units are used after eV, MeV, GeV, etc, are divided by c^2?

  • Juxtaroberto
  • · Replies 4 ·
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Graduate Atomic particle g-factor relationship?

  • brian44cali
  • · Replies 1 ·
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Graduate Can destroy a real photon(mass on-shell) to create a pair massive particles?

  • ndung200790
  • · Replies 6 ·
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Graduate Transfering Electricity w/o Medium? (Electron Beams?)

  • SaudAlt
  • · Replies 2 ·
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Graduate Uncertainty Principle: Explaining the Inequality Relation

  • nanda gopal
  • · Replies 1 ·
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Graduate Are static E fields non existant?

  • azaharak
  • · Replies 6 ·
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Graduate Local or Nonlocal Physics: The Concept of "Fields" vs. "Entanglement

  • guyingfei
  • · Replies 12 ·
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Graduate Is Quantum Entanglement Evidence of Faster-Than-Light Information Transfer?

  • Paper
  • · Replies 21 ·
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Graduate How Does the Transformation in Sakurai's Quantum Mechanics Work?

  • omoplata
  • · Replies 12 ·
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Graduate Quantum fluctuations = gravity?

  • zaybu
  • · Replies 17 ·
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Graduate Cramer's time travel experiment

  • Ontoplankton
  • · Replies 15 ·
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Graduate Peskin Schroeder Enigmatic Equation

  • IRobot
  • · Replies 6 ·
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Graduate Multiple wavelengths of light through much larger single slit

  • littlepapa87
  • · Replies 2 ·
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Undergrad Does Light Have Infinite Mass When Traveling at the Speed of Light?

  • demosthenes_001
  • · Replies 13 ·
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High School Can Quantum Tunnelling Explain the Physicist's Ice Cream Parlor Strategy?

  • autodidude
  • · Replies 3 ·
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Undergrad Orthogonality and orthonormality ?

  • new_986
  • · Replies 3 ·
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Graduate Asymptotic behavior of coefficients

  • intervoxel
  • · Replies 2 ·
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Graduate Is the space of total angular momentum complete?

  • znbhckcs
  • · Replies 4 ·
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Graduate Volume integral of current density

  • daudaudaudau
  • · Replies 8 ·
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Graduate Why doesn't the electron fall into the nucleus?

  • thoughtgaze
  • · Replies 104 ·
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Graduate Can I Create a Focussed Electron Beam at Home with Household Items?

  • kravi
  • · Replies 2 ·
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Graduate Heisenberg's Uncertainty principle

  • Bassalisk
  • · Replies 13 ·
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Graduate Rectangular Potential and Constraints

  • Kreizhn
  • · Replies 7 ·
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Graduate IR divergences by analytic continuation of parameters

  • zetafunction
  • · Replies 1 ·
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Graduate Reviewing Yang-Mills Gauge Field: Symmetries & Path Integral Methods

  • RedX
  • · Replies 10 ·
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10

Graduate How to describe the 'real world'

  • StevieTNZ
  • · Replies 18 ·
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18

Graduate How is the variation of the determinant of the metric computed?

  • christodouloum
  • · Replies 3 ·
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3

Graduate Historical qustion-models of atoms

  • Bassalisk
  • · Replies 4 ·
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4

Youtube maglev toy train demonstration

  • Naty1
  • · Replies 1 ·
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1

Graduate Dynamic relationship of the subatomic particles

  • Servantes135
  • · Replies 19 ·
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19

Graduate Help me in QTF theory(t'Hoof's method)?

  • ndung200790
  • · Replies 1 ·
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1

Graduate What is the connection between oracles and quantum physics?

  • jahrastafaray
  • · Replies 4 ·
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4

Graduate Can Photons Pass Through Protons or Do They Always Collide?

  • cbd1
  • · Replies 1 ·
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Graduate Shannon entropy of wave function

  • friend
  • · Replies 1 ·
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1

Graduate Are Noether charges a rep of the generators on the Hilbert space

  • a2009
  • · Replies 1 ·
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Graduate Mark Srednicki's Quantum Field Theory

  • curtdbz
  • · Replies 8 ·
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8

Graduate Quantum Mechanics and Transcendental Medition

  • wajed
  • · Replies 5 ·
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5

Graduate Quantum Field Theory Purly in Momentum Space?

  • AJS2011
  • · Replies 7 ·
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7

Graduate Representation of Angular Momentum Operator in the (j,j')

  • a2009
  • · Replies 5 ·
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5

Graduate Is Quantum Physics More Empirical or Theoretical?

  • Gary_J
  • · Replies 5 ·
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5

Graduate Integration in path integral formalism?

  • physengineer
  • · Replies 1 ·
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1

Graduate No simple map between classical and quantum

  • Lapidus
  • · Replies 7 ·
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7

Graduate Can Particles Described by Dirac and Klein-Gordon Equations Exist Independently?

  • Anamitra
  • · Replies 2 ·
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Graduate Does in EPR problem transfer anything between two particle?

  • efaizi
  • · Replies 27 ·
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27

Graduate Elementary QFT question, part 3

  • snoopies622
  • · Replies 5 ·
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5

Graduate Wave function phase relationships

  • DmplnJeff
  • · Replies 5 ·
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5

Graduate Path Integrals in finite dimensions

  • Hymne
  • · Replies 1 ·
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1

Graduate Hermitianity of gamma matrices

  • ismaili
  • · Replies 2 ·
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2

Graduate Non spherical solutions of a spherical potential well?

  • nista
  • · Replies 1 ·
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Graduate How useful are indefinite state spaces?

  • A. Neumaier
  • · Replies 68 ·
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Graduate Why Did Quantum Mechanics Adopt Specific Notations?

  • spaghetti3451
  • · Replies 13 ·
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Graduate Exclusion Principle: Do Similar Sub-Atomic Particles Follow?

  • khil_phys
  • · Replies 3 ·
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3

Graduate Describing Force using potentials

  • randybryan
  • · Replies 3 ·
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3

Graduate Understanding Orbital Motion and Energy Levels in Hydrogenic Atoms

  • spaghetti3451
  • · Replies 3 ·
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3