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 Deriving Bloch equations from Liouville equation with spherical tensors
- TheDestroyer
- · Replies 6 ·
Graduate Query about quantum superposition and wave functions
- tim1608
- · Replies 11 ·
Graduate Do different measurement operators span different Hilbert spaces?
- Tosh5457
- · Replies 8 ·
Graduate Destructive interference - What happens to the energy?
- tim1608
- · Replies 20 ·
Graduate Spin assumption for fermions in potential well.
- ranytawfik
- · Replies 3 ·
Graduate Thermal AND Quantum Fluctuations?
- maverick_starstrider
- · Replies 19 ·
Graduate Planck length and quantized position
- Lit
- · Replies 6 ·
Graduate CHSH inequality simulation with 22.5° and 67.5° angles
- .Scott
- · Replies 1 ·
Graduate Simultaneous recognition of to change and being constant
- victorvmotti
- · Replies 13 ·
Graduate Measurement of singularity as a particle inside event horizon
- nomadreid
- · Replies 2 ·
Graduate Bell test experiment setup: photon pair measurement procedure
- humbleteleskop
- · Replies 70 ·
Graduate How are chemical bonds described by quantum mechanics?
- quantumcat
- · Replies 7 ·
Graduate Collapse of Wavefunction, Double-Slit Experiment
- crissyb1988
- · Replies 2 ·
Graduate What are the SU groups? I.e SU(2), SU(3)?
- RyanTG
- · Replies 4 ·
Graduate The Time Independence of Normalization
- kq6up
- · Replies 4 ·
Graduate Allowed energy levels of electrons
- Jimmy87
- · Replies 1 ·
Graduate Double-Slit Interference in Quantum Mechanics
- Robert_G
- · Replies 5 ·
Graduate Why is quantum physics needed to explain photosynthesis ?
- Murtuza Tipu
- · Replies 2 ·
Graduate Hydrogen Atom in homogeneous magnetic vector potential
- VVS
- · Replies 6 ·
Graduate Does the graviton mediate gravity or is it just an excitation of a field?
- FysixFox
- · Replies 6 ·
Graduate Deriving the photon rotation formula in MCNP anisotropic scattering
- Murtuza Tipu
- · Replies 1 ·
Graduate Transition probabilities subject to Lloyd's finite information limit?
- Bill H
- · Replies 3 ·
Graduate Detecting state of an electron
- RobikShrestha
- · Replies 6 ·
Graduate Spacetime and gravity and fields
- brianhurren
- · Replies 7 ·
Graduate Degeneracy: Is it Necessary for Experiments?
- Jano L.
- · Replies 8 ·
Graduate Dimensions of Hilbert Spaces confusion
- nomadreid
- · Replies 35 ·
Graduate Polarization coincidence formula for known polarization?
- georgir
- · Replies 1 ·
Graduate Does Gaussian function give bound states for a particle?
- suvendu
- · Replies 8 ·
Graduate Quantum mechanicss after electrical and electronics engineering?
- sagarbhathwar
- · Replies 1 ·
Graduate A Commutator of annihilation operator
- Robert_G
- · Replies 1 ·
Graduate State vectors and Eigenvalues?
- kq6up
- · Replies 5 ·
Graduate The probability of something happening
- Duhoc
- · Replies 17 ·
Graduate Coherence time of parametrically downconverted entangled photons
- nandan
- · Replies 4 ·
Graduate Fourier transform of an assumed solution to a propagating wave
- erba
- · Replies 1 ·
Graduate Is the trace of an outer product always equal to 1?
- kq6up
- · Replies 4 ·
Graduate Why are some photons reflected and others refracted at a surface?
- Goodver
- · Replies 1 ·
Graduate Virtual Particles in Inter-Quark Space
- Islam Hassan
- · Replies 2 ·
Graduate Article on Hanson quantum teleportation
- Thinkor
- · Replies 2 ·
Graduate The rigid rotator and Angular momentum.
- siddharth5129
- · Replies 2 ·
High School How does quantum teleportation work?
- Alex Jong
- · Replies 19 ·
Graduate Does CO2 re-emit infrared radiation to warm the atmosphere?
- atlstroke
- · Replies 1 ·
Graduate Some questions about the heisenberg picture
- HomogenousCow
- · Replies 1 ·
Graduate Non Commuting Observables not Representing a Complete Set?
- kq6up
- · Replies 13 ·
Graduate Casimir Effect, what does (x,θ) mean?
- epislon58
- · Replies 2 ·
Undergrad Relation between photons and EM wave frequency
- humbleteleskop
- · Replies 7 ·
Graduate Can quantum mechanics be formulated using index notation instead of Dirac notation?
- TheAustrian
- · Replies 105 ·
Graduate Unitary transformation of pure states to other pure states
- m~ray
- · Replies 7 ·
Graduate Photoactivated localization microscopy (PALM)
- gkiverm
- · Replies 1 ·
Graduate The state of a hydrogen electon ?
- siddharth5129
- · Replies 4 ·
Graduate Forming new energy levels in semiconductor by UV light
- Stanley514
- · Replies 1 ·
Graduate Physical meaning of solution to step potential with E = V0
- hnicholls
- · Replies 27 ·
Graduate Is spacetime real or abstract, and why quantize gravity?
- brianhurren
- · Replies 3 ·
Undergrad How does atmospheric dissipation affect UV light measurements?
- ykaravas
- · Replies 1 ·
Graduate Equation of Motion from Lagrangian - Zee QTF in a Nutshell
- sloneranger
- · Replies 8 ·
Graduate Does uncertainty principle apply to quantities other than position and momentum?
- velo city
- · Replies 11 ·
Graduate Source for "Shut up and calculate"
- rigetFrog
- · Replies 13 ·
Graduate What happens to psi in Infinite potential well
- bs vasanth
- · Replies 2 ·
Graduate A question about CP Violation.
- damian081
- · Replies 5 ·
Graduate What doe it mean that energy is quantized?
- kjamha
- · Replies 19 ·
Graduate Feynman's detectors at double slit
- DParlevliet
- · Replies 7 ·
Graduate Emergent coordinate systems in quantum physics
- zdcyclops
- · Replies 7 ·
Graduate Hypothesis of Quantum Entanglement acting up particle/wave duality
- bgrah25
- · Replies 9 ·
Graduate Wave-Particle Duality and Particle Specific Identification
- ir316507
- · Replies 3 ·
Graduate Temporal coherence in Computational ghost imaging
- nandan
- · Replies 20 ·
Graduate Free particle in one dimension
- angass
- · Replies 3 ·
Graduate Uncertainty principle - Nature of observer
- freeelectron
- · Replies 5 ·
Graduate Are all wave functions energy-eigenstates?
- Nikitin
- · Replies 5 ·
Graduate Why do we think that collapse occurs at measurement?
- mmiguel
- · Replies 10 ·
Graduate Symmetry of Spatial Wavefunctions
- cooev769
- · Replies 3 ·
Graduate Measurements and wavefunction collapse.
- maka89
- · Replies 6 ·
Graduate How to match the hydrogen radial equation recursion relation to Laguerre polynomials
- jayqubee
- · Replies 5 ·
Graduate What does the symbol \mathscr{P} in Atom-Photon Interactions stand for?
- Robert_G
- · Replies 1 ·
Graduate Photon's spin and orbital angular momentum
- intervoxel
- · Replies 2 ·
Graduate Wave function of particles approching 0 K
- nehorlavazapal
- · Replies 11 ·
Graduate Dual Tensors in Lagrangian: Why are they not included in U(1) theory?
- guest1234
- · Replies 6 ·
Graduate Fundamental forces and Pauli's exclusion principle
- hokhani
- · Replies 4 ·
Graduate Does the electron's instantaneous wave function violate relativity?
- Mikeal
- · Replies 3 ·
Graduate Is Zeno's Paradox Relevant in Understanding Digital and Real-World Motion?
- p764rds
- · Replies 7 ·
Graduate Complete set of eigenfunctions
- Nikitin
- · Replies 6 ·
Graduate Can electron density be simplified to 2 sum of squared wavefunctions?
- arierreF
- · Replies 10 ·
Graduate Wave function collapse in QED?
- QuasiParticle
- · Replies 44 ·
Graduate Unitary operator acting on state
- copernicus1
- · Replies 2 ·
Undergrad Quantum theory and electronic engineering
- vead
- · Replies 5 ·
Graduate Proof that the linear momentum operator is hermitian
- Paul Black
- · Replies 5 ·
Graduate Must the Lagrangian density be Hermitian?
- guest1234
- · Replies 5 ·
Graduate Experiment: Photon propagating trough dense neutrino beam
- Edi
- · Replies 4 ·
Graduate Use of ancillary bits in quantum computing
- BlackHole213
- · Replies 2 ·
Graduate Are All Electrons Entangled with Each Other?
- metroplex021
- · Replies 2 ·
Graduate How are wavefunctions and eigenkets used differently in quantum mechanics?
- carllacan
- · Replies 30 ·
Graduate Ehrenfest Theorem in Quantum Mechanics: Bohr-Sommerfield's Theory
- ChrisVer
- · Replies 7 ·
Graduate The dot or cross product of two operators acting on a state
- Robert_G
- · Replies 3 ·
Graduate Linearisation of Lie Group Higher dimensional groups
- CAF123
- · Replies 21 ·
Graduate Can Our Consciousness Exist in Multiple Parallel Universes Simultaneously?
- jlee225
- · Replies 1 ·
Graduate What is the impact of discontinuous potentials on quantum harmonic oscillators?
- samgrace
- · Replies 6 ·
Graduate Imaginary free energy and decay rate
- santale
- · Replies 1 ·
Graduate Why Are Physicists Struggling to Quantize Gravity in Quantum Field Theory?
- brianhurren
- · Replies 2 ·
Graduate Why does J = L + S work if L and S act on different spaces?
- Matterwave
- · Replies 11 ·
Graduate Complex conjugate of a wavefunction
- Muthumanimaran
- · Replies 6 ·
Graduate Double slit experiment with magnets
- Commando Spaz
- · Replies 3 ·
Graduate Stern Gerlach Experiment and Spin
- cooev769
- · Replies 25 ·