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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
Graduate State in the infinite potential well
  • LagrangeEuler
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Undergrad Complex conjugate and time reversal operator
  • dyn
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Graduate Request for a review of a paper on consciousness creating reality.
  • Emmanuel Pil
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4
Undergrad Improper density matrix with negative eigenvalues
  • Haorong Wu
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Undergrad Double slit - properties of slit?
  • Homestar1
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Undergrad [video] Simulating a delayed choice quantum eraser in an online drag-d
  • Strilanc
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Graduate How to systematically find the symmetry operator given a Hamiltonian?
  • quantumbitting
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Undergrad Dimensions of P and ##\omega##
  • AHSAN MUJTABA
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6
Undergrad How to Show 25% of Cavity Radiant Energy Between 0 and Peak Wavelength?
  • Alexander de Souza
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Undergrad Large scale entanglement experiment
  • T C
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5
Undergrad Need help understanding entanglement
  • Orenshved
  • · Replies 8 ·
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8
Graduate Bell inequalities demonstration
  • microsansfil
  • · Replies 1 ·
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1
High School Gravitational force between matter and antimatter
  • Delta2
  • · Replies 7 ·
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7
Undergrad What is the meaning of superposition of momentum in coherent states?
  • physicsradio
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High School Time travel in the quantum world
  • Arceus
  • · Replies 10 ·
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10
Undergrad How quickly do electrons jump orbitals?
  • Grasshopper
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High School A in A's reality, B in A's reality, A in B's reality in ....
  • porton
  • · Replies 1 ·
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Undergrad Are electrons universal problem solvers?
  • porton
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4
High School I am looking for a paper written by Massimo Blasone
  • Heidi
  • · Replies 4 ·
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4
Graduate Tensor product in Cartesian coordinates
  • LagrangeEuler
  • · Replies 4 ·
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4
Graduate Ising lattice seen by an inertial observer
  • Heidi
  • · Replies 10 ·
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10
Undergrad How Dark could Dark Matter get?
  • .Scott
  • · Replies 21 ·
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21
Graduate How can we show that the annihilation operators satisfy the given equation?
  • etotheipi
  • · Replies 10 ·
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10
Graduate Wick's rotation on a complex vector space
  • Heidi
  • · Replies 3 ·
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3
High School Is the Momentum Operator Hermitian? A Proof
  • hokhani
  • · Replies 7 ·
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7
Graduate Understanding an Approximation in Statistical Physics
  • Arman777
  • · Replies 6 ·
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6
High School How do you tell when particles are or aren't entangled?
  • louthinator
  • · Replies 8 ·
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8
Graduate Do we really need the Hilbert space for Quantum Mechanics?
  • jonjacson
  • · Replies 6 ·
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6
Undergrad Larmor precession of an electron in a magnetic field?
  • docnet
  • · Replies 1 ·
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Graduate Why is Quantum Field Theory Local?
  • LarryS
  • · Replies 182 ·
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Undergrad Why the linear combination of eigenfunctions is not a solution of the TISE
  • Physicslad00
  • · Replies 24 ·
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24
Undergrad Atom-photon interactions in the interaction picture (self answered)
  • KDPhysics
  • · Replies 6 ·
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6
Undergrad Feynman diagram for scalar - vector interaction
  • gerald V
  • · Replies 2 ·
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2
Undergrad Bell's theorem claimed to be refuted - paper published by EPL
  • emuc
  • · Replies 50 ·
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Undergrad Confused about the spectrum of an observable
  • nomadreid
  • · Replies 4 ·
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4
Undergrad Probability of finding a particle outside its light cone
  • RickRazor
  • · Replies 10 ·
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10
Undergrad What is meant here by "quantum mechanics–free subsystem"?
  • nomadreid
  • · Replies 10 ·
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10
Undergrad What part of physics describes what happens just outside of an electron?
  • Anon42
  • · Replies 8 ·
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8
Graduate How Does the Anomalous Doppler Effect Work?
  • Flamel
  • · Replies 1 ·
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1
Graduate Justification for phi^4 potential
  • joneall
  • · Replies 13 ·
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13
High School Quantify Quantum Eraser Experiment
  • glider77
  • · Replies 19 ·
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19
High School Some questions about Wheeler's delayed choice experiment
  • liuxinhua
  • · Replies 18 ·
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18
Undergrad Question about No-Cloning Theorem and State Tomography
  • Irishdoug
  • · Replies 4 ·
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4
High School Understanding the Observer in Quantum Mechanics: Debunking Common Misconceptions
  • Dr3vil
  • · Replies 7 ·
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7
Graduate $S^+$ and $S^{-}$ operators formula
  • LagrangeEuler
  • · Replies 1 ·
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Graduate What is the meaning of "excess" Goldstone bosons?
  • jack476
  • · Replies 3 ·
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3
Graduate Heisenberg equation of motion -- Partial derivative question
  • LagrangeEuler
  • · Replies 15 ·
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15
Undergrad Can an electron in a magnetic field radiate a virtual photon?
  • docnet
  • · Replies 3 ·
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3
Graduate Calculating nonequilibrium Green's Functions
  • danielw96
  • · Replies 1 ·
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Undergrad A video about the delayed choice eraser that I made
  • Strilanc
  • · Replies 4 ·
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4
Undergrad Distribution of charges as a result of the Hall Effect
  • Blah God
  • · Replies 1 ·
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Undergrad Some questions in "Introduction to quantum mechanics"
  • heslaheim
  • · Replies 1 ·
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Undergrad Black body radiation -- Some basic questions to aid my understanding
  • AhmedHesham
  • · Replies 7 ·
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7
Undergrad Should I always be careful about dimensional consistency?
  • Haorong Wu
  • · Replies 5 ·
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5
High School Description of isolated macroscopic systems in quantum mechanics
  • mephistomunchen
  • · Replies 48 ·
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Undergrad Are Expectation Values Measured for Coupled Photons from SPDC?
  • emuc
  • · Replies 2 ·
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Undergrad Good resources for learning a little about the wave vector
  • phantomvommand
  • · Replies 3 ·
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3
Graduate Introduction to topological field theory?
  • Kris-L
  • · Replies 1 ·
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Graduate Second Quantization in QFT
  • sophiatev
  • · Replies 4 ·
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4
High School What percent of everyday-life electrons are collapsed?
  • VECT
  • · Replies 46 ·
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Undergrad Applying Heisenberg picture to density operator
  • Haorong Wu
  • · Replies 2 ·
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Undergrad Mixed states from entangled state
  • ilikesquareobjects
  • · Replies 6 ·
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6
Undergrad Quantum entanglement. -- Spin up, spin down, isn't it the same?
  • RockSteadyUK
  • · Replies 10 ·
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High School Electron angular momentum, gyroscope?
  • Homestar1
  • · Replies 14 ·
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14
Undergrad Quantum Negativity & 4-Partite Entanglement of GHZ State
  • Jufa
  • · Replies 1 ·
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Undergrad Question about particle interactions and the forces between them
  • simplemind
  • · Replies 15 ·
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15
High School Is a black hole a massive ball of photons?
  • Kyran
  • · Replies 7 ·
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7
Undergrad How Does Negative Pressure Influence the Expansion of the Universe?
  • RJ Emery
  • · Replies 10 ·
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High School View double slit from other end
  • Samina
  • · Replies 1 ·
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High School "Test of wave function collapse suggests gravity is not the answer"
  • StevieTNZ
  • · Replies 3 ·
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3
High School Does the Higgs Boson really have 0 spin?
  • jwb44
  • · Replies 4 ·
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4
High School Are electronic transitions a result of a single photon?
  • Maurice Morelock
  • · Replies 6 ·
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6
Undergrad Why Does Spin Down Have Lower Energy Than Spin Up in a Magnetic Field?
  • docnet
  • · Replies 2 ·
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Undergrad Are Different Charged Gluons Repulsive in the Gluon-Gluon Four-Point Vertex?
  • simplemind
  • · Replies 5 ·
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5
Undergrad Problem with Commutator of Gauge Covariant Derivatives?
  • tomdodd4598
  • · Replies 8 ·
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8
Undergrad How is Coulomb's Law compatible with quantum physics?
  • Mayan Fung
  • · Replies 10 ·
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10
Graduate What is the true energy required to excite an atomic electron?
  • Maurice Morelock
  • · Replies 1 ·
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1
Undergrad Optical spectrum analyzer related
  • chisuma
  • · Replies 3 ·
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3
Graduate Why is 4-Momentum Conserved in Quantum Field Theory?
  • Jamister
  • · Replies 1 ·
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1
Undergrad Is London depth in superconductors analogous to skin depth?
  • iVenky
  • · Replies 2 ·
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2
High School Question about quantum entanglement
  • KingGambit
  • · Replies 5 ·
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5
Undergrad How Does Spin-Orbit Coupling Affect Quantum Number Validity?
  • kelly0303
  • · Replies 14 ·
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14
High School Sun powered by quantum tunneling - question
  • brajesh
  • · Replies 6 ·
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6
Undergrad Exceptions to the postulate of equal a priori probabilities?
  • AndreasC
  • · Replies 4 ·
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4
High School Reduced Planck Constant vs Dark Matter?
  • jwb44
  • · Replies 2 ·
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2
Undergrad Time-dependence in the Hamiltonian
  • Llukis
  • · Replies 6 ·
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6
High School Turbulence and Quantum Mechanical Probabilities
  • Justice Hunter
  • · Replies 7 ·
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7
Undergrad Stimulated emission in harmonic oscillator
  • kelly0303
  • · Replies 4 ·
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4
Undergrad Could Light Absorption Be Linked to Quantum Tunneling?
  • The Baron
  • · Replies 3 ·
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3
Undergrad Derivation of Eigenfunctions/Eigenvalues of the Momentum Operator
  • TRB8985
  • · Replies 1 ·
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1
Undergrad Double delta potential -- Degeneracy of bound states in one dimension?
  • LagrangeEuler
  • · Replies 3 ·
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3
Undergrad Do I understand Bell's Inequality Test correctly?
  • MichaelPower17
  • · Replies 1 ·
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1
Undergrad Do Entangled Quantum Particles Remain Aligned After Initial Preparation?
  • rasp
  • · Replies 40 ·
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Undergrad Riddle: Where is Epsilon in Bohr Model of Atom?
  • AhmedHesham
  • · Replies 10 ·
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10
Undergrad Simulation of non-Hermitian quantum mechanics
  • James Essig
  • · Replies 6 ·
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6
High School Energy needed for electron's change in energy level in an atom
  • Nathi ORea
  • · Replies 15 ·
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15
High School Understanding Light Quantization
  • brajesh
  • · Replies 4 ·
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4
Undergrad Interesting Scientific American article (The end of QM?)
  • wittgenstein
  • · Replies 46 ·
2
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High School Which one is correct? (the Matrix or Wave formulation of QM)
  • zoltrix
  • · Replies 3 ·
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3
Undergrad How to solve 2nd order TDSE for a Gaussian-kicked harmonic oscillator?
  • skynelson
  • · Replies 6 ·
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6