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 Quantum Gravity and time's arrow
- hatfarm
- · Replies 2 ·
Graduate Is Weak Isospin Conserved in Particle Physics?
- RedX
- · Replies 1 ·
Graduate Quantum Mechanics and Special Relativity (violations)
- cgnicholls
- · Replies 20 ·
Graduate What is the value of the fine structure constant at Planck energy?
- heinz
- · Replies 4 ·
Graduate Commuting operators => Common eigenfunctions?
- JK423
- · Replies 18 ·
Graduate Entanglement, causality and local realism
- karatemonkey
- · Replies 51 ·
Graduate How does CMBR differ from ether (SR self study - Question from W. Rindler)
- maverick280857
- · Replies 4 ·
Graduate Transmission function(probability) T(E) in tight binding
- rejinisaac1
- · Replies 5 ·
Graduate From Cartan's Theory of Spinors, x1^2 + x2^2 + x3^2 = 0
- Spinnor
- · Replies 4 ·
Graduate How is Single Photon Polarization Determined in Free Space?
- psycherevolt
- · Replies 3 ·
Graduate What does the eigen equation in quantum mechanics mean physically?
- univector
- · Replies 17 ·
Graduate Does Multi Path Integral Formulation Violate Special Relativity?
- cragar
- · Replies 4 ·
Graduate Poincare-representation of majorana spinor
- torus
- · Replies 7 ·
Undergrad Compton effect vs photolectric effect
- math_04
- · Replies 2 ·
Graduate What would be outcome of experiment?
- zonde
- · Replies 3 ·
Graduate Questions on chapter 95 in Srednickis QFT book, Supersymmetry
- malawi_glenn
- · Replies 5 ·
Graduate A pair of 2D harmonic oscillators at a point and Dirac eq.
- Spinnor
- · Replies 1 ·
Graduate Gauge invariance of superpotential
- RedX
- · Replies 6 ·
Graduate How does a single electron fill all orbital shells in a hydrogen atom?
- daisey
- · Replies 16 ·
Graduate Relation between decay rate (lifetime) and spectral width
- Chen
- · Replies 15 ·
Graduate Understanding Ansatz in Quantum Mechanics: Types and Applications
- AxiomOfChoice
- · Replies 1 ·
Graduate Quantum Mechanical analogy of Newton's third law
- sokrates
- · Replies 7 ·
Graduate Harmonic oscillator integral: proving d²x/dt² · dx/dt = ½d(dx/dt)²/dt
- Heath Watts
- · Replies 2 ·
Graduate Photoelectric effect and light polarization in Wikipedia
- lightarrow
- · Replies 6 ·
Graduate Why fundamental quantization of energy is hv?
- janakiraman
- · Replies 33 ·
Graduate Interpreting k.p 8 band model output for type II quantum wells
- N_B
- · Replies 1 ·
Graduate Pre-requisites for path integral formulation?
- hawkingfan
- · Replies 4 ·
Graduate Operator in exponential function and generating function
- ChrisLM
- · Replies 1 ·
Graduate Massless representations of the Poincare group
- nrqed
- · Replies 2 ·
Graduate Derivation of Uncertainty Princple
- ChrisLM
- · Replies 2 ·
Graduate Why do photons have no rest mass and cannot have a charge?
- Nikaro
- · Replies 31 ·
Graduate Difficulties in Canonical Quantization and Tensor Relations in Elementary QFT
- muppet
- · Replies 20 ·
Graduate What Is the Schwarz-Hora Effect and Its Implications on Quantum Mechanics?
- mn4j
- · Replies 5 ·
Graduate A mental picture of entanglement?
- ronridings
- · Replies 4 ·
Graduate Do Weyl Spinors Have Well-Defined Helicities Across Different Masses?
- nrqed
- · Replies 8 ·
Graduate Normalization of Wave-Function
- Sparky_
- · Replies 7 ·
Graduate Is the principal objection to decoherence thermodynamical?
- canoe
- · Replies 16 ·
Graduate Uncertainty principle in classical mechanics boundary
- omri3012
- · Replies 2 ·
Graduate What is the Derivation of the Schrodinger Equation for Matter?
- snoopies622
- · Replies 8 ·
Graduate Quantum Kinetic Theory by M. Bonitz: Traces over Commutators
- Jezuz
- · Replies 2 ·
Graduate Can BECs Show Us Decoherence in "Slow Motion"?
- SW VandeCarr
- · Replies 1 ·
Graduate Where is an electron while jumping between energy levels?
- aymer
- · Replies 1 ·
Graduate How Are Allowed Wave Vectors Calculated in Carbon Nanotubes?
- rejinisaac1
- · Replies 4 ·
Undergrad Weak and strong interaction are attactive or repulsive force?
- magnetar
- · Replies 1 ·
Graduate Basic question on a vector superfield
- RedX
- · Replies 3 ·
Graduate Black hole laser or condensate?
- tiny-tim
- · Replies 2 ·
Graduate Super-position / Duality Physically Real?
- Thetom
- · Replies 12 ·
Graduate The Significance of Decoherence in the Quantum-to-Classical Transition
- kexue
- · Replies 7 ·
Graduate Beta Function for QED: 20/9 or 8/3?
- RedX
- · Replies 3 ·
Graduate Counterterms and vertices in Srednicki's equation 9.25
- malawi_glenn
- · Replies 2 ·
Graduate Total angular momentum of N identical spin-1 bosons
- wdlang
- · Replies 4 ·
Graduate Software to calculate simple commutator relation ?
- aspidistra
- · Replies 1 ·
Graduate What are Jacobi coordinates, and why are they useful?
- AxiomOfChoice
- · Replies 1 ·
Graduate Fourier Transforms, Momentum and Position
- r16
- · Replies 4 ·
Graduate Time evolution of an entangled state
- menriquezf
- · Replies 1 ·
Graduate Does Quantum Entanglement Necessitate Faster-Than-Light Communication?
- TimH
- · Replies 25 ·
Graduate Divergent tree level Feynman diagrams?
- DrFaustus
- · Replies 7 ·
Graduate What operators can we measure directly?
- Fredrik
- · Replies 14 ·
Graduate Quantum Foam vs Zero Point Energy
- Zenth
- · Replies 2 ·
Undergrad Fourier transform spectroscopy
- Chemistopher
- · Replies 2 ·
Graduate Force Carriers, Mass, and Speed
- daisey
- · Replies 2 ·
Graduate Reason for Fourier transform convention in QM?
- pellman
- · Replies 8 ·
Graduate Laser Broadening: Impact on Wavelengths
- chrisphd
- · Replies 1 ·
Graduate Is spontaneous emission by a photoexcited atom a scattering process?
- KFC
- · Replies 1 ·
Graduate Number say about the spin of a particle?
- MrPickle
- · Replies 3 ·
Graduate Status of Teleportation Research?
- Ulnarian
- · Replies 8 ·
Graduate Electron double slit with continuous lamp illumination
- intervoxel
- · Replies 5 ·
Graduate Why do electrons behave as both waves and particles?
- peeyush_ali
- · Replies 26 ·
Graduate The CRT and Electron Superposition
- McHeathen
- · Replies 17 ·
Graduate Lorentz Transformation and Creation Operators
- maverick280857
- · Replies 8 ·
Undergrad Wave and particle properties of light and frequency-energy relationship
- hopskins
- · Replies 19 ·
Graduate What Defines the Weak Field Regime in the Zeeman Effect?
- rabbit44
- · Replies 1 ·
Graduate Renormalizable quantum field theories
- LaserMind
- · Replies 83 ·
Graduate Is the path integral well defined
- pellman
- · Replies 13 ·
Graduate Energy of electron and its effective mass
- Stanley514
- · Replies 11 ·
Graduate Time is interconnected with mass, right?
- brianthewhitie7
- · Replies 1 ·
Graduate No Permanent Dipole Moment in Two-Level System w/External Field
- KFC
- · Replies 3 ·
Undergrad Pair Production and Annihilation
- rss14
- · Replies 3 ·
Graduate The role of complex conjugation in QM
- bunburryist
- · Replies 4 ·
Graduate Einstein's 'Spooky Physics' Gets More Entangled
- EricKnaak
- · Replies 5 ·
Graduate Can Matter and Energy Interchangeably?
- Frozen Light
- · Replies 4 ·
Graduate Can quantum uncertainty be useful in physics?
- aaryan0077
- · Replies 2 ·
Graduate Mermin on Spooky action at a distance
- Niles
- · Replies 33 ·
Graduate Computing P$^{\mu}$ with Stress Energy Tensor
- maverick280857
- · Replies 12 ·
Graduate Geneva University speed of entanglement results
- LaserMind
- · Replies 26 ·
Graduate Convergence of vacuum state of Klein Gordon field in a box
- maverick280857
- · Replies 6 ·
Graduate Probability that energy level is occupied
- unscientific
- · Replies 3 ·
Graduate Questions over Quantum Physics
- haloshade
- · Replies 20 ·
Graduate How do you find the length of closed orbits in the Gutzwiller formula?
- zetafunction
- · Replies 1 ·
Graduate Expressing the Klein Gordon Hamiltonian in terms of ladder operators
- maverick280857
- · Replies 2 ·
Graduate Can entanglement enable FTL communication despite relativity?
- Untangled
- · Replies 29 ·
Graduate Colapse of the Wave Funcion and the Schroedinger Equation
- wofsy
- · Replies 58 ·
Graduate Normalized function and minimum energy
- satach
- · Replies 4 ·
Graduate Partial derivative of electromagnetic field tensor with respect to time derivatives
- maverick280857
- · Replies 9 ·
Graduate Alternative formalization of quantum mechanics?
- krete
- · Replies 1 ·
Graduate Potential Energies: Same Value, Different Minima?
- Physicslad78
- · Replies 4 ·
Graduate Atom Stability and harmonic oscillator
- feynmann
- · Replies 12 ·
Graduate What are good eigenstates in degenerate perturbation theory?
- mattlorig
- · Replies 10 ·
Graduate Validity of Mathematical Proof of Uncertainty Principle
- phreak
- · Replies 6 ·
Graduate When is a propagator on shell?
- nolanp2
- · Replies 1 ·