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 Touching at atomic and macro scale

  • Rajkovic
  • · Replies 10 ·
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Graduate Is there a connection between EPR and crossing symmetry in Feynman diagrams?

  • stevendaryl
  • · Replies 1 ·
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Graduate Uncertainty of position in an infinite potential well

  • Ananthan9470
  • · Replies 3 ·
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3

Graduate Quantum Physics: The Reaction of a Photon Passing Through a Slit in a Plate

  • goran d
  • · Replies 2 ·
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Graduate Quantum fluctuations at radio frequencies

  • Ponderer
  • · Replies 54 ·
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High School Is the Net Charge of a Hydrogen Atom the Same in Excited State vs Ground State?

  • jimmylegss
  • · Replies 1 ·
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Graduate Is the Mass of an Electron Arbitrary in Quantum Field Theory?

  • Student57
  • · Replies 1 ·
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Graduate Implications of Bell's theorem (Laloe paper)

  • atyy
  • · Replies 20 ·
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20

Graduate Apparent 'stillness' of macroscopic systems

  • Oudeis Eimi
  • · Replies 9 ·
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9

Undergrad What is the charge of an electron and the nature of stopping potential?

  • blooperkin
  • · Replies 3 ·
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Graduate Relation between electricity and magnetism?

  • akashpandey
  • · Replies 2 ·
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Graduate Quantum fluctuations at critical point

  • AcidRainLiTE
  • · Replies 5 ·
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Graduate Selection rules in electric dipole appoximation

  • blue_leaf77
  • · Replies 5 ·
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5

Graduate How Do Eigenvalues and Eigenvectors Determine a Quantum Density Operator?

  • andphy
  • · Replies 13 ·
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Graduate Is Matter Wave Travel Faster Than the Speed of Light?

  • akashpandey
  • · Replies 4 ·
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4

Graduate Proof of Cauchy-Schwarty Inequality

  • Peter Yu
  • · Replies 6 ·
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Graduate Strength of Dirac Delta Potential

  • dyn
  • · Replies 3 ·
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Graduate Electron recoil due to photon emission

  • Danyon
  • · Replies 15 ·
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Graduate Spin angular momentum operator queries

  • gfd43tg
  • · Replies 4 ·
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4

Graduate Frustrated total internal reflection superluminal

  • kochanskij
  • · Replies 3 ·
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3

Graduate Understanding Energy Eigenstates: Orbitals and Energy Bands Explained

  • lucas_
  • · Replies 5 ·
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5

Graduate Basic Linear Alegbra for Quantum Mechanics

  • Peter Yu
  • · Replies 4 ·
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4

Graduate Explore the Double Slit Experiment: Variations & Results

  • PZIG98
  • · Replies 8 ·
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8

Graduate Noether's theoem and conserved current arbitrariness

  • Einj
  • · Replies 3 ·
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3

Graduate Huh? Condensates can exchange particles without effect?

  • jshrager
  • · Replies 2 ·
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Graduate Solving the Schödinger equation - R.Shankar's PQM, mistake?

  • soviet1100
  • · Replies 10 ·
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Graduate Solving the Mystery of Spontaneous Emission

  • Goodver
  • · Replies 3 ·
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3

Undergrad Why photons don't interact with the Higg's field

  • Evenus1
  • · Replies 1 ·
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1

Graduate Is the quantum world truly random?

  • Chuckstabler
  • · Replies 14 ·
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14

Graduate The "Intelligence" behind quantum physics

  • Felipe Osorio
  • · Replies 3 ·
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3

Graduate Gauge Transformation Quantum Electrodynamics

  • Juan Carlos
  • · Replies 1 ·
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Graduate Can you answer this virtual photon paradox?

  • nuclearhead
  • · Replies 13 ·
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13

Graduate Is Quantum Superposition Dependent on the Observer?

  • underworld
  • · Replies 21 ·
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21

Graduate Logical explanation for quantization

  • physdoc
  • · Replies 12 ·
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12

Graduate Representations on Hilbert space

  • Jip
  • · Replies 8 ·
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8

Graduate Translation Operators: Raising & Lowering Equations

  • dyn
  • · Replies 14 ·
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14

Graduate Why do scars corresponding to classical orbits appear in the wavefunction?

  • Rococo
  • · Replies 5 ·
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5

Graduate Creation and annihilation operators

  • TimeRip496
  • · Replies 1 ·
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Graduate Double-slit experiment: any videos of the Observer Effect?

  • Iron Chef
  • · Replies 21 ·
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Graduate V - A weak interaction theory?

  • haael
  • · Replies 1 ·
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Graduate What happens at energy-gaps, Kronig-Penney model

  • iAlexN
  • · Replies 1 ·
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Graduate Mass problem or something of a sort (E=mc^2)

  • Nikola Kolev
  • · Replies 2 ·
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Graduate QFT: Bogolyiubov transformations and KG inner product

  • Joey21
  • · Replies 5 ·
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5

Graduate Dirac Wave Function: Schrodinger Equation Coupling

  • jamie.j1989
  • · Replies 7 ·
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7

Graduate Quantum Bose Einstein effects on a macro scale?

  • maboomba
  • · Replies 15 ·
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15

Graduate Introduction to superconducting quantum circuits

  • lfqm
  • · Replies 2 ·
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2

Graduate Understanding the Role of Multiple Integrals in the Path Integral Formula

  • TimeRip496
  • · Replies 14 ·
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Graduate Visualising the Conjugate Transposition of a Vector

  • H Smith 94
  • · Replies 5 ·
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Graduate Effects of Hamiltonian Preferred Basis on Decoherence

  • lucas_
  • · Replies 1 ·
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Graduate Definition Radial distribution function

  • Pluto
  • · Replies 2 ·
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Graduate Quantum Superposition: Causes, Effects and More

  • TimeRip496
  • · Replies 3 ·
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Graduate Entanglement, Measurements, and Interactions

  • JasonWuzHear
  • · Replies 1 ·
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Graduate Explain delayed choice quantum eraser without consciousness

  • burke142
  • · Replies 2 ·
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Graduate Why is the integrated information of a Bell state = 0?

  • Agrippa
  • · Replies 3 ·
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Graduate Can Wien's Law be derived without using Planck's formula?

  • Math Jeans
  • · Replies 2 ·
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Graduate Uncertainity Principle: possible to know the momentum and position?

  • Praveen Vijayan
  • · Replies 10 ·
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Graduate A concept of time with the future as an emergent property

  • Rodrigo Cesar
  • · Replies 7 ·
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Graduate If there are three electrons associated together then how

  • invrlovduanyway
  • · Replies 2 ·
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Graduate Mass in eV over speed of light

  • Avatrin
  • · Replies 6 ·
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6

Graduate How Are Hamiltonian and Lagrangian Related in Quantum Mechanics?

  • TimeRip496
  • · Replies 3 ·
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Graduate Entangled particle through double slit

  • whoperj
  • · Replies 5 ·
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5

Graduate Splitting Gamma-Ray Photons: Is It Possible?

  • ryanuser
  • · Replies 2 ·
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2

Graduate Quantized Spacetime and Zeno's Paradox: A Solution to the Arrow Paradox?

  • Rodrigo Cesar
  • · Replies 2 ·
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2

Graduate If electrons are fundamental particles then why do they -

  • invrlovduanyway
  • · Replies 3 ·
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Graduate Harmonic oscillator in Heisenberg picture

  • dyn
  • · Replies 1 ·
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Graduate Why the photoelectric absorption section finite at threshold

  • zweiling
  • · Replies 2 ·
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Graduate Geometric measure of entanglement for fermions or bosons?

  • zweiling
  • · Replies 2 ·
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2

Graduate How is quantum interference achieved with atoms fired from opposite directions?

  • Jilang
  • · Replies 17 ·
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Graduate A brief question on quantum thermodinamics.

  • Alex Cros
  • · Replies 8 ·
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8

Graduate Commutators, Traces & [x,p] = I(hbar) Explained

  • dyn
  • · Replies 38 ·
2
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Graduate How can we explain continuous absorption / emission?

  • DomPhillips
  • · Replies 1 ·
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1

Graduate Casimir Effect and Calculate Energy Density of it

  • Quarlep
  • · Replies 7 ·
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7

Graduate Is Quantum Teleportation Possible Through Electron-Positron Annihilation?

  • ryanuser
  • · Replies 2 ·
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2

Graduate How would observation of the state of qubits affect them?

  • ant0n
  • · Replies 10 ·
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10

Graduate Operators for measuring superposition component distinctnes?

  • Agrippa
  • · Replies 3 ·
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3

Graduate How Does the Pauli Exclusion Principle Limit Electron Spin Directions?

  • Chemer
  • · Replies 1 ·
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1

Graduate Double slit experiment and Interaction

  • Rajkovic
  • · Replies 121 ·
5
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Graduate Is the Holographic Universe Theory a Valid Concept?

  • Rajkovic
  • · Replies 10 ·
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10

Graduate Why doesn't orbital angular momentum operator L commute with scalar operator S?

  • fayled
  • · Replies 2 ·
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2

Graduate Quantum entanglement can be used for achieve FLT

  • Athul Prem
  • · Replies 2 ·
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2

Graduate What is the Physical Meaning of the Hartree-Fock Approximation?

  • jl29488
  • · Replies 2 ·
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2

Graduate Using Quantum Entanglement to know the future?

  • kinkarso
  • · Replies 14 ·
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14

Graduate Difference Between Two Thoughts on Wave Function Collapse?

  • cmkluza
  • · Replies 8 ·
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8

Graduate Dirac Equation and Pauli Matrices

  • HeavyMetal
  • · Replies 6 ·
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6

Graduate Effect of proton spin & nuclear interaction on binding energy

  • akashpandey
  • · Replies 1 ·
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1

Graduate Quantum states as normal vectors

  • jimmycricket
  • · Replies 11 ·
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11

Graduate Effect of prton spin& nuclear interaction on binding energy

  • akashpandey
  • · Replies 1 ·
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1

Graduate Filling bag with elementary particles

  • Andrew Jay
  • · Replies 2 ·
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2

Graduate Observables vs. continuum and metric?

  • TangledMind
  • · Replies 1 ·
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1

Graduate Time Uncertainty and the Collapse of the Wavefunction

  • JasonWuzHear
  • · Replies 3 ·
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3

Graduate QM laws fundamental vs effective

  • zonde
  • · Replies 6 ·
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6

Graduate Position Eigenstates Indeterminacy

  • Edward Wij
  • · Replies 1 ·
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1

Graduate "Wavepacket of electrons" or "wavepacket of electron"?

  • blue_leaf77
  • · Replies 25 ·
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25

Graduate Probability wave peaks and quantum number

  • Chemer
  • · Replies 8 ·
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8

Graduate How do i visualize probability in double slit

  • jimmylegss
  • · Replies 7 ·
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7

Graduate Why Do 1s and 2s Orbitals Have Different Electron Probabilities?

  • AdityaDev
  • · Replies 3 ·
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3

Graduate Delayed Erasure follow-up experiments

  • Rodrigo Cesar
  • · Replies 3 ·
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3

Graduate Can Quantum Eigenvalues Define the Exact Values of Nature's 26 Basic Constants?

  • Edward Wij
  • · Replies 1 ·
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1

Graduate Construct an ONB for a triatomic molecule

  • rogeralms
  • · Replies 5 ·
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5

Graduate 2 particle exchange operator P

  • jl29488
  • · Replies 1 ·
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1