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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.

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Quantum Interpretations and Foundations

Particle vs Wave Interpretations of QM
1.3K threads
Undergrad Particle vs Wave Interpretations of QM
High School Could Spontaneous symmetry breaking cause momentum change in an atom?
  • Matthew-Champion
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Undergrad Vacuum energy and Energy conservation
  • Ebi Rogha
  • · Replies 3 ·
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High School Is quantum superposition involved in the Stern-Gerlach experiment?
  • Curious Cat
  • · Replies 10 ·
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10
Undergrad Determining Momentum from Wavefunction
  • FermiDIrac19
  • · Replies 13 ·
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13
High School How does quantum superposition really work?
  • Curious Cat
  • · Replies 4 ·
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4
Undergrad Uncertainty principle equation for virtual particles
  • Ebi Rogha
  • · Replies 6 ·
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6
Undergrad What is the quantum spin of a single electron in an (atomic) orbital?
  • Curious Cat
  • · Replies 1 ·
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Graduate How to derive the Momentum and Energy Operators from first principles?
  • Svend
  • · Replies 3 ·
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3
Undergrad Developing Quantum Expressions using QUBO
  • rpthomps
  • · Replies 1 ·
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1
Undergrad Why Does Molecular Potential Energy Curve Have That Specific Shape?
  • Dario56
  • · Replies 26 ·
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26
Undergrad How to recalculate Berry phase dipole moments (jumps over time)?
  • bumblebee77
  • · Replies 5 ·
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5
Undergrad Dirac equation in the hydrogen atom
  • Malamala
  • · Replies 1 ·
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Undergrad Observables on the "3 polarizers experiment"
  • DougFisica
  • · Replies 2 ·
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2
High School Double Double Slit Experiment -- Question about Variations
  • Myslius
  • · Replies 3 ·
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3
Graduate Connection between QFT renormalization and field regularization?
  • Jarek 31
  • · Replies 28 ·
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28
Undergrad Schrodinger Cat states in terms of Displacement Operator
  • deepalakshmi
  • · Replies 8 ·
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8
Graduate Time evolution of coherent state with vacuum
  • deepalakshmi
  • · Replies 2 ·
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2
High School Black Holes & Stars: Quantum Entanglement Possibility?
  • Antman0115
  • · Replies 5 ·
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5
Graduate Trace of Numerator in QED vacuum polarization
  • Elmo
  • · Replies 2 ·
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2
Graduate What's the meaning of mean photon number?
  • Tspirit
  • · Replies 10 ·
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10
Graduate Understanding how quantum annealing solves QUBO problems
  • siddjain
  • · Replies 1 ·
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1
Undergrad Discussion about quantum mechanics and spacetime
  • docnet
  • · Replies 1 ·
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1
Undergrad How Do We Model Wave Function Collapse After Measuring Particle Location?
  • Sciencemaster
  • · Replies 8 ·
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8
Undergrad Common features of set theory and wave functions?
  • Hallucinogen
  • · Replies 4 ·
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4
Undergrad Perturbation theory with two parameters?
  • Amentia
  • · Replies 3 ·
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3
Undergrad Commutation of Beam splitter operator with Displacement operator
  • deepalakshmi
  • · Replies 1 ·
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1
Undergrad What does it really mean that photons are quanta of light?
  • Ebi Rogha
  • · Replies 15 ·
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15
Graduate Infinities in QFT (and physics in general)
  • Demystifier
  • · Replies 113 ·
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Graduate Cat state acting on given Hamiltonian
  • deepalakshmi
  • · Replies 1 ·
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1
Graduate Discover the Fascinating Evolution of Cat States in Our Comprehensive Guide
  • deepalakshmi
  • · Replies 1 ·
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1
Graduate What is the legacy of Sidney Coleman?
  • robphy
  • · Replies 3 ·
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3
Undergrad Observing a double-slit experiment
  • oknow
  • · Replies 14 ·
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14
Undergrad How big is a photon - Interesting video
  • BvU
  • · Replies 13 ·
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13
High School Why is there now evidence of a lag time in the photoelectric effect?
  • qnt200
  • · Replies 10 ·
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10
Undergrad Software for optical simulation with interference
  • Erik Ayer
  • · Replies 2 ·
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2
Undergrad Spin spin coupling problem an electron/positron system
  • Hayam ramadan
  • · Replies 1 ·
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1
Graduate Derivation of recovery channel for bit flip error
  • steve1763
  • · Replies 1 ·
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1
Graduate Relationship between Larmor precession and energy eigenstates
  • docnet
  • · Replies 15 ·
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15
Graduate How Does One Calculate the Time Evolution of a Photon in a Vacuum State?
  • deepalakshmi
  • · Replies 1 ·
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1
Undergrad Question about the Propagator (as defined in Ballentine)
  • jbergman
  • · Replies 15 ·
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15
Graduate Understanding Local and Nonlocal Operators in Quantum Field Theory
  • MathematicalPhysicist
  • · Replies 167 ·
6
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Graduate I am looking for an example of a Fredholm module
  • Heidi
  • · Replies 3 ·
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3
Undergrad Differentiated Sakharov Equation for Vacuum Fluctuations
  • Dubbelosix
  • · Replies 1 ·
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1
High School Does Schrödinger's Cat Know Its Own Fate?
  • oknow
  • · Replies 17 ·
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17
High School A layman's question about entanglement
  • beans1971
  • · Replies 2 ·
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2
Undergrad Gauge Theory and Fiber Bundles
  • knowwhatyoudontknow
  • · Replies 11 ·
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11
Undergrad Measuring Photon Intrinsic Nature: Is Interference a Factor?
  • Ebi Rogha
  • · Replies 13 ·
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13
Undergrad Proving the Schrodinger Equation
  • thegroundhog
  • · Replies 1 ·
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1
Undergrad Rayleigh scattering VS Raman scattering
  • Ebi Rogha
  • · Replies 3 ·
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3
Undergrad Entangled particles in black hole decay?
  • nomadreid
  • · Replies 11 ·
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11
Undergrad [Quantum Computing] Quantum Parallelism State Calculation
  • llha
  • · Replies 1 ·
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1
Graduate Bootstrapping quantum Yang-Mills with concrete axioms
  • BohmianRealist
  • · Replies 2 ·
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2
Undergrad Output of down converted beam not proportional to input beam power?
  • Spinnor
  • · Replies 1 ·
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1
High School Kim and Scully delayed eraser, interference curve form
  • jeremyfiennes
  • · Replies 11 ·
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11
Undergrad Orbitals and selection rules in a synchrotron
  • snorkack
  • · Replies 18 ·
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18
Undergrad Can a single photon be reflected by a mirror?
  • Ebi Rogha
  • · Replies 3 ·
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3
Undergrad Quantum vs Classical multiphoton interference on double slit
  • MichPod
  • · Replies 17 ·
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17
Graduate QM is Feynman path ensemble - is QFT Feynman field ensemble?
  • Jarek 31
  • · Replies 89 ·
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Undergrad Does decoherence mean the loss of entanglement?
  • Haorong Wu
  • · Replies 1 ·
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1
Undergrad Is there a way to calculate the frequency of an electron wave?
  • Dyon
  • · Replies 1 ·
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1
Graduate Jaynes-Cummings Density Operator Evolution
  • stephen8686
  • · Replies 1 ·
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1
Undergrad Why are there no probability amplitudes in MWI?
  • entropy1
  • · Replies 7 ·
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7
Undergrad "Counterfactual definiteness" vs. "free will"
  • greypilgrim
  • · Replies 102 ·
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Undergrad Numerically solving Time-independent Schrödinger eqn. using Shooting algorithm
  • Wrichik Basu
  • · Replies 20 ·
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20
Graduate Spin-One Klein Gordon Equation
  • Jogging-Joe
  • · Replies 3 ·
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3
Undergrad Understanding the 'vacuum fluctuations'
  • raracon
  • · Replies 1 ·
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1
Graduate First findings from Fermilab's 'muon g-2' experiment revealed
  • physicoed
  • · Replies 2 ·
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2
Undergrad Uncertainty principle##\Delta H\Delta Q##, where Q is time-independent
  • Foracle
  • · Replies 1 ·
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1
Undergrad It seems that the eigenvalue problem rules out the possibility of E=0?
  • BHL 20
  • · Replies 5 ·
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5
High School Entangled protons in a uniform magnetic field?
  • docnet
  • · Replies 20 ·
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20
Graduate Bell's theorem: Local realism v. counterfactual determinism
  • zvi
  • · Replies 2 ·
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2
Undergrad Is quantum mechanics imply nature is deterministic or probabilistic?
  • Pipsqueakalchemist
  • · Replies 8 ·
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8
Undergrad Two Ways of Calculating the Solution to the Infinite Square Well?
  • JohnH
  • · Replies 28 ·
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28
Graduate Why are we allowed to use the trace cyclicity here?
  • Heidi
  • · Replies 2 ·
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2
Graduate Klein-Gordon Equation: Solving 2nd Order Time Derivative
  • koustav
  • · Replies 12 ·
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12
Undergrad Einstein-Bohr "photon box" debate and general relativity
  • Giulio Prisco
  • · Replies 20 ·
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20
Undergrad Schrodinger Equation as Flow Equation
  • lagrangman
  • · Replies 2 ·
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2
High School Which book is best for learning about quantum entanglement?
  • edukso
  • · Replies 3 ·
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3
Undergrad Is the Wavefunction a Contravariant Component?
  • JohnH
  • · Replies 47 ·
2
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47
Graduate Quantum superposition: Is a problem of space-time worldview?
  • sergiokapone
  • · Replies 1 ·
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1
Undergrad How Does Quantum Negativity Vary with Partial Transposes in Bipartite Systems?
  • Jufa
  • · Replies 1 ·
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1
Undergrad Why could magnetic monopoles exist?
  • Ahsan Khan
  • · Replies 12 ·
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12
Graduate Interaction between neutrons and nuclei during scattering
  • Mayan Fung
  • · Replies 1 ·
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1
High School The average value of S operator
  • Viona
  • · Replies 3 ·
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3
Graduate Feynman diagram for bound particle output
  • JonAce73
  • · Replies 1 ·
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1
Undergrad "Black holes can only get bigger" - huh?
  • Terrr
  • · Replies 61 ·
3
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61
Undergrad SPDC & Entanglement: Downconvert for 3 Particle Entanglement?
  • entropy1
  • · Replies 2 ·
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2
Undergrad Interference Patterns & Photon Paths: Exploring the Double Slit Experiment
  • deadbeef
  • · Replies 3 ·
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3
Undergrad How can there be an Uncertain Momentum at a Specific Energy?
  • BHL 20
  • · Replies 13 ·
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13
Undergrad A strange definition for Hermitian operator
  • struggling_student
  • · Replies 3 ·
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3
Undergrad Is this system a superposition?
  • KDPhysics
  • · Replies 25 ·
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25
Undergrad General solution of the hydrogen atom Schrödinger equation
  • Oliver321
  • · Replies 9 ·
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9
Graduate Experiments probing the macroscopic limits of QM
  • Auto-Didact
  • · Replies 45 ·
2
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High School Virtual Particles Momentum Transfer
  • e2m2a
  • · Replies 27 ·
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27
High School Do entangled particles always react in an anti-symmetric way?
  • Jerome71
  • · Replies 6 ·
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6
Graduate Heisenberg lens and probabilities
  • Heidi
  • · Replies 9 ·
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9
Graduate Is the freedom-of-choice loophole valid in quantum entanglement experiments?
  • little1406
  • · Replies 2 ·
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2
Undergrad What is the role of the D term in the Spin-1 XY model's Hamiltonian?
  • chaksome
  • · Replies 1 ·
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1
Undergrad Why is this 3D operator with degeneracies only giving me 2 eigenstates
  • struggling_student
  • · Replies 2 ·
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2
High School Electron charge and spin creating a magnetic field?
  • JuicyFruit123
  • · Replies 12 ·
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12