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 Space-time continuity as an assumption in quantum theory

  • vivekfw66
  • · Replies 10 ·
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Graduate What does QM hint about time-space?

  • San K
  • · Replies 3 ·
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3

Undergrad Why Do Electrons in Covalent Bonds Not Remain Stationary?

  • harjot singh
  • · Replies 3 ·
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3

Graduate A problem in deriving the interaction field equation for photons

  • Qubix
  • · Replies 2 ·
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2

Graduate Heisenberg Uncertainty Principle Derivation

  • stevenjones3.1
  • · Replies 1 ·
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1

Graduate The Human Double Slit Experiment

  • Legaldose
  • · Replies 3 ·
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3

Graduate QFT Time Ordering: Solve Mystery of Operator Rewriting

  • aaaa202
  • · Replies 5 ·
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5

Graduate Understanding POVM Measurement on Qubit: Placing Detectors & Neumark Extension

  • phonon44145
  • · Replies 2 ·
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Graduate Electron Probability of being at an location

  • twest123
  • · Replies 2 ·
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2

Graduate Eigenstate and real space representation

  • Arya_
  • · Replies 1 ·
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1

Graduate Uncovering the Initial Conditions of Electrons in the Ives-Stillwell Experiment

  • exmarine
  • · Replies 3 ·
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3

Graduate Parity is Discrete Transformation?

  • LagrangeEuler
  • · Replies 1 ·
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1

Undergrad Can a Small YBa2Cu3O7 Disk Navigate a Ring Magnet Track in Quantum Levitation?

  • Phizix
  • · Replies 1 ·
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1

Graduate Polarity in Atoms: Understanding Electron Movement in Covalent Bonds

  • harjot singh
  • · Replies 5 ·
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5

Graduate Pauli exclusion principle at distance

  • airydisc
  • · Replies 4 ·
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4

Graduate Quantum Physics: Can We Understand How It Happens?

  • Qubix
  • · Replies 2 ·
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2

Graduate Why do fermions have 1/2-integer spins?

  • lizzie96
  • · Replies 2 ·
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2

Graduate How to understand operators representing observables are Hermitian?

  • shrodinger1226
  • · Replies 38 ·
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Graduate Question about Quantum Effective Action

  • wphysics
  • · Replies 4 ·
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4

Graduate Momentum operator as differentiation of position vector

  • hokhani
  • · Replies 5 ·
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5

Graduate Superposition and entanglement

  • San K
  • · Replies 6 ·
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6

Graduate Does the environment cause wave function collapse

  • Fiziqs
  • · Replies 94 ·
4
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94

High School Double slit experiment for school

  • thatoneguy6531
  • · Replies 3 ·
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3

Graduate Question about relativistic quantum hawking radiation.

  • PhysicsStuff
  • · Replies 30 ·
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30

Graduate Why do we need wormholes to describe entanglement?

  • PhysicsStuff
  • · Replies 12 ·
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12

Graduate Understanding Time Ordering Operator in Imaginary Time Formalism

  • aaaa202
  • · Replies 2 ·
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2

Graduate Gradient of product of wave functions

  • doktorglas
  • · Replies 7 ·
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7

Undergrad Particle in a box Schrodinger equation

  • gkiverm
  • · Replies 1 ·
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1

Graduate Fundamental difference between quantum physics and classical physics

  • shounakbhatta
  • · Replies 18 ·
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18

Graduate Partition function as a description of the system

  • phys_student1
  • · Replies 5 ·
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5

Graduate Evidence that Maldacena’s hologram conjecture is true

  • Greg Bernhardt
  • · Replies 5 ·
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Graduate Is Gravity Responsible for Breaking Quantum Entanglement?

  • Jilang
  • · Replies 12 ·
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12

Graduate Does position operator have eigen wave function?

  • nosafeway
  • · Replies 5 ·
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5

Graduate Importance of the observer in double slit experiment and entanglement

  • Quarlep
  • · Replies 10 ·
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10

Graduate My First Post & A Question On Quantum Mechanics

  • Volatilis
  • · Replies 3 ·
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3

Graduate The Wave Function Of The Universe

  • Crazy4Physics
  • · Replies 31 ·
2
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Graduate Spherical harmonics and angular momentum operators

  • FarticleFysics
  • · Replies 3 ·
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Graduate What is the significance of commutative operators in quantum mechanics?

  • amitbashyal
  • · Replies 6 ·
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Graduate How does graphene demonstrate quantum tunneling?

  • dawozel
  • · Replies 10 ·
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Graduate Creating of Wormhole during entanglement

  • San K
  • · Replies 17 ·
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17

Graduate What is the Asymptotic Behavior of the Propagator in QFT?

  • ndung200790
  • · Replies 1 ·
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What is the Bipolar coordinate system used for in the DSM manual?

  • Clovis
  • · Replies 3 ·
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3

Graduate A particle in 1D potential well

  • White_M
  • · Replies 1 ·
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Graduate Is there a frequency eigenstate for light?

  • snoopies622
  • · Replies 15 ·
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Graduate Building a Quantum Levitation device

  • 42Physics
  • · Replies 10 ·
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10

Graduate Can Quantum Fluctuations Create Friction in Empty Space?

  • anubodh
  • · Replies 10 ·
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Graduate Fermionic Operator Equation Derivation Troubleshooting

  • aaaa202
  • · Replies 8 ·
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8

Graduate What Does the Spin-0 State Mean for Photons?

  • TrickyDicky
  • · Replies 3 ·
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3

Graduate Why do we get an interference pattern in a double slit experiment?

  • Fiziqs
  • · Replies 21 ·
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Graduate Device to measure Planck's constant

  • Niceperson27
  • · Replies 6 ·
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6

Graduate What Does <S> Mean in Spin Measurement?

  • lonewolf219
  • · Replies 5 ·
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5

Graduate Spectral Function: Concluding Delta, Physical Interpretation, Imaginary Part

  • aaaa202
  • · Replies 3 ·
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Graduate Uncovering the Flaws of Born Inequality: A Deeper Look into Quantum Particles

  • Rena Cray
  • · Replies 1 ·
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Graduate Lagrangian and quantum field theory

  • shounakbhatta
  • · Replies 14 ·
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14

Graduate Solving Schroedinger Eqn: Interpreting Separation Constant G as Energy

  • DaTario
  • · Replies 1 ·
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Graduate Do photons interact with gravitons?

  • jaydnul
  • · Replies 3 ·
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3

Graduate Understanding Electron Diffraction: Heisenberg Uncertainty Principle

  • bmrick
  • · Replies 6 ·
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6

Graduate Time evolution with time dependent Hamiltonians

  • wotanub
  • · Replies 6 ·
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6

Graduate Effect of Shielding on Electron Penetration

  • garvit21794
  • · Replies 1 ·
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Graduate Entanglement vs space-time continuum

  • C. Bernard
  • · Replies 23 ·
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23

Graduate What is the physical interpretation of eigenvalues in H?

  • Arya_
  • · Replies 7 ·
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7

Graduate Double-slit experiment with photons vs electrons

  • TrickyDicky
  • · Replies 39 ·
2
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Graduate What is the impact of nonperturbative effects on time-dependent quantum theory?

  • TrickyDicky
  • · Replies 3 ·
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Graduate Initial condition for Schrödinger equation

  • kengrimwood
  • · Replies 4 ·
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4

Graduate Srednicki Ch5 creation operator time dependence

  • cedricyu803
  • · Replies 2 ·
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Graduate Pure to mixed and back to pure state

  • kye
  • · Replies 9 ·
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9

Graduate I really need a resource to explain the linear potential well to me

  • richyw
  • · Replies 1 ·
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1

Graduate Can the energy flux of an EM wave be represented by a single photon?

  • jaydnul
  • · Replies 7 ·
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7

Graduate Critique of the quantum suicide experiment

  • Demystifier
  • · Replies 36 ·
2
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Graduate Do quantum fluctuations come from nothing ?

  • HamzahA
  • · Replies 23 ·
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23

Graduate A question on basics of statistical mechanics

  • Alpharup
  • · Replies 5 ·
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5

Graduate What role does quantum entanglement play in quantum computers?

  • Jalo
  • · Replies 1 ·
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1

Graduate Understanding a wikipedia article on quantum coordination games

  • Strilanc
  • · Replies 12 ·
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12

Graduate Solving Projection Operator Questions - QM Basics

  • White_M
  • · Replies 1 ·
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1

Graduate Time Symmetric Quantum Mechanics

  • dm4b
  • · Replies 20 ·
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20

Graduate Time Ordering Operator: Integrals & Step Function

  • aaaa202
  • · Replies 1 ·
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1

Undergrad How to set up a double slit experiment?

  • Fiziqs
  • · Replies 9 ·
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9

Graduate Why is there no help: momentum expectation value 2D particle in a box

  • Duave
  • · Replies 4 ·
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4

Undergrad Wavefunction of Two Particles: Intuitive Explanation

  • Alpharup
  • · Replies 2 ·
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2

Graduate Why does the wave function have to collapse upon measurement?

  • TriKri
  • · Replies 6 ·
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6

Graduate Eigenstate of energy but not angular momentum?

  • Jerrynap
  • · Replies 1 ·
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1

Graduate Creation and anihillation operators

  • aaaa202
  • · Replies 15 ·
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15

Graduate Do intramolecular bonds vibrate in solids ?

  • ns_phonon
  • · Replies 1 ·
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1

Graduate What Happens to Bob's Measurement in an EPR Experiment?

  • tymarats
  • · Replies 6 ·
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6

Graduate Understanding Mean Field Theory for Hamiltonians for Beginners

  • aaaa202
  • · Replies 1 ·
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1

Graduate Silly thermodynamics and quantum mechanics questions

  • amrhima
  • · Replies 18 ·
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18

Graduate Electromagnetic radiation and perturbation

  • hokhani
  • · Replies 6 ·
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6

Graduate Radial Probability Distribution Curve for Hydrogen Atom

  • Jimmy25
  • · Replies 2 ·
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2

Graduate Photon Size: Uncertainty Principle & QM Explained

  • Thinker007
  • · Replies 65 ·
3
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65

Graduate Does Time Slow Down at the Quantum Level as We Get Smaller?

  • Windseaker
  • · Replies 14 ·
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14

Graduate Understanding Probability Amplitude, State Operators and Galilei Group

  • Delta Kilo
  • · Replies 2 ·
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2

Graduate Can someone explain the behavior of particles in the double slit experiment?

  • MathJakob
  • · Replies 19 ·
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19

Undergrad What does the definition the energy is not continuous mean?

  • Brucezhou
  • · Replies 11 ·
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11

Graduate Converting Information to Energy: Japanese Physicists Show It Can Be Done

  • jimcross
  • · Replies 13 ·
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13

Graduate Beam Splitter - Commutation relations

  • Hazzattack
  • · Replies 1 ·
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1

Graduate Quantum Entanglement vs Space Time

  • IAmPixelTwitch
  • · Replies 10 ·
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10

Graduate Are quantum no-go theorems overrated/potentially counterproductive?

  • bohm2
  • · Replies 59 ·
2
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59

Graduate Understanding Mass and Vectors in Quantum Mechanics: The Role of the Higgs Field

  • kye
  • · Replies 57 ·
2
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57

Graduate Probability density and acceleration

  • Jarvis323
  • · Replies 1 ·
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1

Undergrad What is the dimensional formula for Planck's constant?

  • forest chump
  • · Replies 10 ·
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10