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 Entanglement/event horizon red/blue shift

  • Mordred
  • · Replies 4 ·
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4

Undergrad Pair production and pair annihilation

  • ritesh31rao
  • · Replies 1 ·
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1

Graduate Electromagnetically Induced Transparency Molecular Atom Selectivity?

  • jaketodd
  • · Replies 6 ·
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6

Graduate Can Quantum Physics and Poetry Coexist in Understanding Reality?

  • antoniopedro
  • · Replies 14 ·
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14

Undergrad Do properties associated with photons also apply to other bosons?

  • ricko
  • · Replies 3 ·
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3

Graduate Solution to the Schrodinger equation

  • cytochrome
  • · Replies 1 ·
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Graduate What are the kinds of mesurements that affect the wave function?

  • Sayajin
  • · Replies 7 ·
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7

Graduate [MSc thesis ideas] Solar PV with use of quantum physics

  • astralfx
  • · Replies 2 ·
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2

Graduate SU(2) a double cover for Lorentz group?

  • friend
  • · Replies 25 ·
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25

Graduate The double slit experiment – What do I need to know?

  • Proxymei
  • · Replies 9 ·
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9

Graduate How long does entanglement last?

  • San K
  • · Replies 2 ·
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2

Graduate Was there quantum mechanics before it was discovered?

  • thephystudent
  • · Replies 8 ·
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8

Graduate Doubt in hidden variable concepts

  • fpaolini
  • · Replies 2 ·
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2

Graduate Local realism ruled out? (was: Photon entanglement and )

  • akhmeteli
  • · Replies 823 ·
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Graduate Another question about bell inequality

  • mes314159
  • · Replies 1 ·
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Graduate Linear Sigma Model Invariance Under O(N)

  • dm4b
  • · Replies 4 ·
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4

Graduate Quantum mechanics for the nucleus?

  • DiracPool
  • · Replies 3 ·
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3

Graduate Qubits and common calculations

  • exponent137
  • · Replies 3 ·
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3

Graduate Does light accelerate to its speed or is it instant?

  • Magnus Warhol
  • · Replies 7 ·
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7

Graduate QM Interpretation & Young's Exp: Electron Position Defined?

  • MHD93
  • · Replies 1 ·
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1

Graduate Wave functions for Coherence and Entanglement

  • San K
  • · Replies 4 ·
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4

Graduate Significance of Dirac to Wave Mechanics Model

  • ky.tan1
  • · Replies 2 ·
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2

Graduate What is the issue with an infinite universe on a N-sphere?

  • StJohnRiver
  • · Replies 55 ·
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Graduate What Does Integrability Mean in Physics and Mathematics?

  • anthony2005
  • · Replies 6 ·
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6

Graduate Infinity potential hole - transition to base state

  • lakmus
  • · Replies 2 ·
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2

Graduate Understanding Spin: Unpacking the Concept of Electron Angular Momentum

  • VivaLaFisica
  • · Replies 1 ·
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1

Undergrad Thermal Equilibrium: Exchange of Kinetic Energy

  • boletoms
  • · Replies 7 ·
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7

Graduate Understand Faddeev-Popov Trick: Equation 9.53 Explained

  • dm4b
  • · Replies 12 ·
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12

Graduate Is there entanglement other than 50/50 energy? of the pump photon

  • San K
  • · Replies 2 ·
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2

Graduate Could Virtual Particles Explain the Acceleration of Galaxies?

  • barbacamanitu
  • · Replies 14 ·
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Graduate In downconversion, can you get coherence between the signals from two sources?

  • al onestone
  • · Replies 27 ·
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Graduate Possibility of superluminal signals using quantum entanglement

  • kochanskij
  • · Replies 6 ·
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6

Graduate Solutions of the free one-particle Klein Gordon equation

  • silverwhale
  • · Replies 1 ·
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1

Undergrad Physical meaning of wavefunction parameters x and t

  • accountkiller
  • · Replies 5 ·
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5

Graduate Tunneling in a non-subatomic particles

  • Si14
  • · Replies 3 ·
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3

Graduate Transition Dipole Moment and Electron Transfer

  • Sina
  • · Replies 6 ·
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6

Graduate Formula for Commutator of f(n), a, a+ Bose operators

  • LagrangeEuler
  • · Replies 11 ·
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Graduate Is Dirac's equation still useful after QED is developed?

  • wdlang
  • · Replies 18 ·
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18

Graduate How can we add Angular Momenta in Quantum Mechanics?

  • M. next
  • · Replies 7 ·
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7

Graduate Temporal complementarity- single and two-photon interference

  • San K
  • · Replies 1 ·
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Graduate How Do You Transition Between These Two Physics Equations?

  • silverwhale
  • · Replies 4 ·
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4

Graduate Probability and quantum possibilities

  • NanaToru
  • · Replies 5 ·
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5

Graduate Time independent Schrödinger equation

  • ZedCar
  • · Replies 2 ·
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2

Graduate Is it a misprint in QFT book of Peskin?

  • ndung200790
  • · Replies 1 ·
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1

Graduate Transmission and Processing of Information via Quantum Entanglement

  • Russell501
  • · Replies 1 ·
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1

Graduate Wheeler Feynman absorber theory and non locality

  • entropy15
  • · Replies 1 ·
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1

Graduate Are There Experiments Superior to Bell's Tests for Proving Quantum Entanglement?

  • San K
  • · Replies 2 ·
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2

Graduate Pair production - conservation of momentum VS conservation of energy

  • 71GA
  • · Replies 9 ·
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9

Graduate Pair production - which theory does it belong to

  • 71GA
  • · Replies 5 ·
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5

Graduate Understanding delayed choice experiment

  • rajeshmarndi
  • · Replies 5 ·
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5

Graduate Recording of data stopping interferrence pattern

  • BigGordonLips
  • · Replies 8 ·
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8

Graduate Schrodinger's Cat - An Alteration

  • jason_m
  • · Replies 2 ·
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2

Graduate Uncertainty, Symmetry, and Commutators

  • friend
  • · Replies 25 ·
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25

Graduate Does different observer affect double slit particle experiment

  • rajeshmarndi
  • · Replies 26 ·
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Graduate Finding Matrix Elements of Operators in Quantum Mechanics

  • aaaa202
  • · Replies 2 ·
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2

Graduate Amount of energy required to change path of a photon

  • San K
  • · Replies 4 ·
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4

Graduate Probability density from Wave Function

  • Mandelbroth
  • · Replies 2 ·
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Graduate What is the correct convention for anti-fermions in Feynman diagrams?

  • MalachiK
  • · Replies 6 ·
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Graduate Uncertainty principle,examining the «principle» part

  • ShayanJ
  • · Replies 2 ·
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2

Graduate Question About the Photoelectric Effect for Lower Frequencies

  • Linday12
  • · Replies 1 ·
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1

Graduate Reversal of limits of integration in the derivation of probability current density

  • hnicholls
  • · Replies 7 ·
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7

Graduate Solving Gaussian Potential - Analyzing Energy Differences

  • aaaa202
  • · Replies 7 ·
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7

Graduate Applying Schrodinger's Cat Experiment

  • noname2020x
  • · Replies 34 ·
2
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Graduate Spin Quantum # in Triplet state

  • phys_student1
  • · Replies 1 ·
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1

Graduate Production of bound states of slow fermions- Peskin 5.3

  • muppet
  • · Replies 3 ·
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3

Graduate What is spin in subatomic particles

  • h1010134
  • · Replies 5 ·
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5

Graduate Has the Uncertainty Principle been defeated?

  • markb287
  • · Replies 3 ·
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3

Graduate Electromagnetism its counterpart particle? And can it be used to create a PMF?

  • Curious_Dude
  • · Replies 4 ·
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4

Graduate Are There Any Cases of Non-Constant Particle Mass in Solid State Theory?

  • TriKri
  • · Replies 3 ·
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3

Graduate Electron Exclusion via EIT/CPT?

  • jaketodd
  • · Replies 19 ·
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19

Graduate Electron excitation, and inhibition with EIT/CPT?

  • jaketodd
  • · Replies 1 ·
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1

Graduate How exactly do raising/lowering operators let you know the form of M?

  • Silversonic
  • · Replies 5 ·
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5

Graduate Unraveling the Mystery of Observation & Wave Function Collapse

  • Jbeats245
  • · Replies 8 ·
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8

Graduate Can we apply superposition principle for states in Fock space?

  • ndung200790
  • · Replies 21 ·
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21

Graduate Solving SE Numerically for Periodic Potential

  • aaaa202
  • · Replies 2 ·
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2

Graduate What does touch look like in the subatomic world?

  • markb287
  • · Replies 5 ·
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5

Graduate State callback in photon teleportation

  • bastianT
  • · Replies 1 ·
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1

Graduate What Does It Mean When Field Quanta Are Not Spatially Localized?

  • I2004
  • · Replies 4 ·
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4

Graduate Can a particle entangle with itself?

  • San K
  • · Replies 8 ·
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8

Undergrad Space between objects when Normal force equals 0

  • PhanthomJay
  • · Replies 9 ·
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9

Graduate Can 2D Systems Simplify Path Integrals in 4D Minkowski Space?

  • DMESONS
  • · Replies 3 ·
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3

Graduate Popular accounts of quantum computing

  • VantagePoint72
  • · Replies 1 ·
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1

Graduate Macroscopic superpostion and hidden variable theories

  • I2004
  • · Replies 1 ·
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1

Undergrad Why Does One Photon of Light Cause the Emission of One Electron?

  • dev70
  • · Replies 11 ·
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11

Undergrad Infinite Universe, All Combinations of Matter Exist

  • Nickerbocker
  • · Replies 15 ·
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15

Graduate What is Spin in Elementary Particles?

  • TheAnalogKid2
  • · Replies 6 ·
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6

Graduate Photonic Properties Determining Charge

  • 13thDoctor
  • · Replies 10 ·
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10

Graduate Quantum Gas Below Absolute Zero

  • F1225
  • · Replies 6 ·
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6

Graduate What Factors Influence the Lifetimes of He S=1,0 States in Quantum Mechanics?

  • Sekonda
  • · Replies 7 ·
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7

Graduate How can scattering with interaction at all time be resolved using QFT?

  • ndung200790
  • · Replies 17 ·
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17

Graduate Is Feynman's interpretation of the double slit experiment universally accepted?

  • I2004
  • · Replies 8 ·
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8

Graduate Wrapping my head around holography

  • lookbehindu
  • · Replies 17 ·
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17

Graduate Ground level energies (Particle in a box vs Harmonic Osc.)

  • Denver Dang
  • · Replies 3 ·
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3

Graduate The uncertainity principle, a new take?

  • I2004
  • · Replies 13 ·
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13

Measuring the polariztion of a pair of entangled photons

  • Cylten
  • · Replies 1 ·
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1

Graduate Question about the double-slit experiment.

  • Bararontok
  • · Replies 42 ·
2
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42

Graduate Can the result of an optical circuit depend on when you check it?

  • Strilanc
  • · Replies 8 ·
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8

Graduate Spin vs. Charge: Unraveling a Puzzling Relationship

  • DiracPool
  • · Replies 7 ·
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7

Graduate Momentum,discrete or continuous spectrum?

  • ShayanJ
  • · Replies 11 ·
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11

Undergrad What gives a proton it's charge?

  • Mohamed Daw
  • · Replies 22 ·
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22