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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Graduate Quantum Information Theory: Trace of Density Matrix Explained
- aaaa202
- · Replies 1 ·
Graduate Prove the nth Hermite polynomial has n real zeros
- Happiness
- · Replies 1 ·
Graduate Decoherence in the long time limit of density matrix element
- soviet1100
- · Replies 5 ·
Graduate Relationship between Quantum Numbers and Quantum Information
- kalimaa
- · Replies 5 ·
Graduate Explaining John Bell & Anton Zeilinger's Attempt to Prove No Definite Reality
- thinkandmull
- · Replies 22 ·
Graduate How Do You Construct Excited States in a Two-Boson Harmonic Oscillator?
- kuy
- · Replies 8 ·
Graduate Is there a Bell type inequality involving only three values?
- Zafa Pi
- · Replies 11 ·
Graduate Trace Distance in quantum mechanics
- Emil_M
- · Replies 1 ·
Graduate Are photons really anti-correlated off their basis vectors?
- zincshow
- · Replies 2 ·
Insights A Hand-Wavy Discussion of the Planck Length - Comments
- klotza
- · Replies 28 ·
Graduate Realism and counterfactual definiteness in Bell's theorem
- ShayanJ
- · Replies 10 ·
Graduate The spectral gap and it's decidability
- #neutrino
- · Replies 1 ·
Graduate Question related to a 3D finite spherical well
- ClaireBear1596
- · Replies 2 ·
Graduate Why is Quantum Mechanics Inherently Probabilistic?
- AlexGLSY
- · Replies 5 ·
Graduate Why does gauge fixing break gauge symmetry?
- TimeRip496
- · Replies 3 ·
Graduate Distance between positron and electron
- Einstein's Cat
- · Replies 5 ·
Graduate What is the relationship between frequency and energy in matter waves?
- VHAHAHA
- · Replies 7 ·
Undergrad Parallel universes and randomness
- HydroTekZ
- · Replies 1 ·
Graduate Wave-function solution of a rectangular-well potential
- Happiness
- · Replies 4 ·
Graduate Ground-state energy of harmonic oscillator(operator method)
- explainplease
- · Replies 9 ·
Graduate Quantum effects caused by our mathematics?
- ande4jo
- · Replies 28 ·
Graduate Collapse of Wave: Effects on Energy & Position Measurements
- klw289
- · Replies 70 ·
Graduate What Experiments Can Enhance Your Understanding of Quantum Mechanics?
- TomServo
- · Replies 1 ·
Graduate How can pure EM waves experience decoherence?
- jlcd
- · Replies 11 ·
Graduate Counting States of Degeneracy in 3-D Particles in a Box
- Sturk200
- · Replies 1 ·
Graduate Is Fokker Planck equation equivalent to Schrodinger equation
- naima
- · Replies 1 ·
Graduate Is the Spectral Gap Problem in Quantum Mechanics Undecidable?
- andresB
- · Replies 1 ·
Graduate Experiment showing energy levels of light are quantized
- conquest
- · Replies 6 ·
Undergrad Must even functions have even number of nodes?
- Happiness
- · Replies 21 ·
Graduate Can Numerical Simulations Reveal Violations of CHSH Inequalities?
- jk22
- · Replies 19 ·
Graduate Isn't Schrodinger's cat doomed anyways?
- Bharath Siva
- · Replies 5 ·
Graduate Learning Feynman Diagrams: Matrices & Dirac Adjoints
- Immortalis
- · Replies 4 ·
Graduate Why Do Some Particles Decay Faster Than Others?
- Ryan Reed
- · Replies 6 ·
Undergrad What is the explanation for quantum correlations?
- bremsstrahlung
- · Replies 23 ·
Graduate Are Some Atomic Orbitals From a 4D Wave Function?
- Hornbein
- · Replies 3 ·
Graduate Electromagnetic waves and the correspondence principle
- center o bass
- · Replies 4 ·
Graduate QED & Thin Films: Wave Interference or Probability?
- Jimmy87
- · Replies 9 ·
Graduate How does the wavefunction "know" the observables?
- Coherence
- · Replies 12 ·
Graduate Perceived contradiction in non-locality principle
- entropy1
- · Replies 61 ·
Graduate Why is the transition in resistance gradual at the Critical Temperature
- thanasis
- · Replies 4 ·
Graduate Possible explanation for a Bell experiment?
- PR0
- · Replies 21 ·
Graduate 100% transmission through a potential barrier
- Happiness
- · Replies 1 ·
Graduate What are some coincidences in quantum mechanics that make life possible?
- tzimie
- · Replies 12 ·
Graduate What determines light-matter interaction processes?
- carllacan
- · Replies 3 ·
Graduate Is the collapse of a wave function deterministic or random?
- Happiness
- · Replies 30 ·
Graduate QED explanation of entanglement
- zonde
- · Replies 13 ·
Graduate How to get from the wavefunction to weighted states?
- Jarrodmccarthy
- · Replies 1 ·
Graduate What prior experiments justified the notion of entanglement?
- ontodva
- · Replies 7 ·
Graduate Do Electrons need Energy to Excite the EM field?
- Ryan Reed
- · Replies 3 ·
Graduate Free particle propagation: paradox?
- Kostik
- · Replies 5 ·
Graduate Debunking Misconceptions About QCD: Understanding the Behavior of Quarks
- BiGyElLoWhAt
- · Replies 17 ·
Graduate Unitary and linear operator in quantum mechanics
- spaghetti3451
- · Replies 3 ·
Undergrad What exactly does quantum entanglement imply?
- Daniel K
- · Replies 78 ·
Graduate Must the 1st derivative of phi be undetermined at V=infinity
- Happiness
- · Replies 4 ·
Graduate Commutation relations for angular momentum operator
- spaghetti3451
- · Replies 7 ·
Graduate What is the difference between psi(x;y) and psi(x) in 2D BO
- sztld123
- · Replies 1 ·
Graduate Can synchronization emulate non-locality ?
- Mentz114
- · Replies 11 ·
Graduate Anderson localization and electron flow/diffusion?
- jarekduda
- · Replies 1 ·
Graduate Eberhard assumptions and FTL communication
- zonde
- · Replies 4 ·
Graduate Bell-state entanglement swapping and retrocausality
- entropy1
- · Replies 24 ·
Graduate Schwarz-Hora Effect: Publications & Discussions
- HeinrichHora
- · Replies 1 ·
Graduate Double-slit with semi-transparence
- Pizza
- · Replies 6 ·
Graduate Are photons passing a polarization filter randomly?
- entropy1
- · Replies 7 ·
Graduate Connection between Planck's Constant and Action?
- Mercy
- · Replies 11 ·
Graduate Quantum Cosmology and Quantum Computing
- Alexis1304
- · Replies 6 ·
Graduate Retrieving information from qubits
- T S Bailey
- · Replies 4 ·
Graduate Stern-Gerlach: Run Through X, Y & Z Axes?
- Hornbein
- · Replies 1 ·
Graduate Hyperfine structure in hydrogen
- victorvmotti
- · Replies 1 ·
High School Proof Photons Exist? Evidence & Facts
- entropy1
- · Replies 8 ·
Graduate Double-slit with half-transparent mirror
- jk22
- · Replies 11 ·
Graduate Do Electrons Excite the EMF or do the Virtual Photons?
- Ryan Reed
- · Replies 1 ·
Graduate CPT transformation analogue of free electron laser?
- jarekduda
- · Replies 2 ·
Graduate Seeking a phase angle operator for the QHO
- snoopies622
- · Replies 3 ·
Graduate Are the two paths in an interferometer indistinguishable?
- Happiness
- · Replies 1 ·
Graduate Wave function -- Why is there an imaginary part?
- preitiey
- · Replies 5 ·
Graduate Pilot wave theory and quantum tunneling
- johnob
- · Replies 4 ·
Undergrad Double Slit Experiment: Questions Raised & Explanations Needed
- nnope
- · Replies 49 ·
Graduate Operator works on a quantum state yields another state?
- Adel Makram
- · Replies 9 ·
Graduate How to interpret Bell's theorem correctly
- entropy1
- · Replies 2 ·
High School Diffraction of light, the mechanism
- Raymond Potvin
- · Replies 19 ·
Graduate Nonlinear susceptibility in second harmonic generation
- Konte
- · Replies 15 ·
Graduate Hidden variables and Bell's inequality
- Point Conception
- · Replies 12 ·
Graduate Double slit experiment exposed?
- Nav
- · Replies 22 ·
Graduate Exact Description of Properties: Spin, etc.
- abrogard
- · Replies 3 ·
Graduate Wave Functions: What Are They?
- Negatratoron
- · Replies 8 ·
Graduate Correspondence principle and its use
- janko78
- · Replies 3 ·
Graduate Uncertainty principle at the macroscopic level
- preitiey
- · Replies 8 ·
Graduate How much does it cost to conduct quantum research on a large scale?
- Mohamed Sabah
- · Replies 16 ·
Graduate Does Quantum Contextuality only apply to spin?
- Jarrodmccarthy
- · Replies 5 ·
Graduate Indeterminacy of wave function
- klw289
- · Replies 5 ·
Graduate Difference between 2-point and 4-point function in QFT
- Higgsy
- · Replies 3 ·
Graduate Second Quantization vs Many-Particle QM
- stevendaryl
- · Replies 67 ·
Graduate How Does the Stern-Gerlach Experiment Illuminate the Electron Spin Problem?
- Sheldon Cooper
- · Replies 6 ·
Graduate How to find the normalization constant of Fermi-Dirac distribution function?
- akk
- · Replies 12 ·
Graduate Do Quantum Particles Jump Rather Than Move?
- cree_be_mee
- · Replies 7 ·
Graduate Can an Atom's Valence Electrons Be Used as a Radial Antenna?
- SirR3D
- · Replies 3 ·
Graduate Using Feynman rules to calculate amplitude
- Higgsy
- · Replies 4 ·
Graduate Free particle propagator - Shankar POQM Eqn. 5.1.10, p. 153
- Kostik
- · Replies 1 ·
Graduate Order of scalar interaction impact Feynman diagrams
- Higgsy
- · Replies 1 ·
Graduate Propagator for free particle: question about Shankar formula
- Kostik
- · Replies 1 ·