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 Why does observation change electron behavior in the double slit experiment?
- khkwang
- · Replies 1 ·
Graduate Planck and Einstein's theories.
- xxxy
- · Replies 7 ·
Graduate What is the meaning of \frac{1}{A}\left|\phi\rangle in quantum mechanics?
- rgoerke
- · Replies 3 ·
Graduate Quantum Entanglement and time travel
- vincentm
- · Replies 121 ·
Graduate What happens when a photon hits and antiparticle?
- stone1
- · Replies 1 ·
Graduate Eigen Value and Eigen Function
- roshan2004
- · Replies 4 ·
Graduate Spread of Wave Function Under Potential
- boderam
- · Replies 1 ·
Graduate Particle pointing away or from a charge?
- hankaaron
- · Replies 10 ·
Graduate Trying to Understand Bell's reasoning
- billschnieder
- · Replies 110 ·
Graduate Does antimatter have a negative mass
- sshort75
- · Replies 13 ·
Graduate Is the Pauli exclusion principle a fundamental force?
- Zarqon
- · Replies 67 ·
Graduate Is Nature's Preferred Wave Packet Shape Gaussian?
- LarryS
- · Replies 2 ·
Graduate Photon propogator = metric tensor?
- Pengwuino
- · Replies 5 ·
Graduate Question on orthogonal eigenfunctions
- mt8891
- · Replies 1 ·
Graduate VIP experiment explanation needed
- phyfreak
- · Replies 1 ·
Graduate Total mass in the universe = infinite (Dirac Sea calculation)
- LostConjugate
- · Replies 2 ·
Graduate Stability of Electron/Nucleus; Heisenberg Unc.
- Enjolras1789
- · Replies 19 ·
Graduate Einstein's formula for specific heat
- Piano man
- · Replies 6 ·
Graduate Prerequisites 4 Quantum Mechanics: Math Topics Needed
- Ramy
- · Replies 4 ·
Graduate Photon Creation and Light Generation
- FireBones
- · Replies 2 ·
Graduate Quantum Violation of Equivalency Principle
- sanman
- · Replies 5 ·
Graduate Force or work for electronic transition?
- ani4physics
- · Replies 1 ·
Graduate Relational reasoning (Rovelli's RQM, Smolin etc)
- Fra
- · Replies 8 ·
Graduate Commutator Relations vs. Schrodinger Equation
- Enjolras1789
- · Replies 6 ·
Graduate Understanding Bell's mathematics
- Gordon Watson
- · Replies 86 ·
Graduate Feynman Diagram of a Coulombic Attraction?
- mk17
- · Replies 32 ·
Graduate How do electron double slit experiments block electrons if they penetrate thin materials?
- snowdogging
- · Replies 2 ·
Graduate Do you think the uncertainty principal will ever be solved
- john88888
- · Replies 13 ·
Graduate Bosons and the Pauli Exclusion Principle
- Smarky
- · Replies 3 ·
Graduate Heisenberg Uncertainty Principle - Why Is It Real?
- mjacobsca
- · Replies 21 ·
Graduate Where does the classical limit begin?
- hawkingfan
- · Replies 3 ·
Graduate Can Information Really Travel Simultaneously in the Universe?
- Hippasos
- · Replies 2 ·
Undergrad Details of the double-slit experiment?
- very_curious
- · Replies 2 ·
Graduate Points to cover for discussing a free particle in quantum mechanics
- roshan2004
- · Replies 1 ·
Graduate What is excursion of a potential well?
- rcompton
- · Replies 3 ·
Graduate What do the 4 spin states of two particles represent
- LostConjugate
- · Replies 18 ·
Graduate Gamma 5 Dirac Matrice: Understanding Pseudo-Scalar
- IRobot
- · Replies 2 ·
Graduate Can virtual particles break the law that energy cannot be created or destroyed?
- john88888
- · Replies 36 ·
Graduate What would be the world be like if Plank's Constant is modified?
- Smarty7
- · Replies 16 ·
Graduate Why does the quantum harmonic oscillator have discrete energy levels?
- glederfein
- · Replies 1 ·
Graduate Are conserved the spin and orbital parts of the angular momentum?
- jonjacson
- · Replies 2 ·
Graduate How does a photon interfere with itself and affect the interference pattern?
- Strafespar
- · Replies 1 ·
Graduate Real meaning of stationary states
- Rick89
- · Replies 25 ·
Graduate Field Lagrangians as systems with infinte degrees of freedom?
- pellman
- · Replies 3 ·
Graduate Is it Reasonable to Measure Fluorescence with Single Molecule in 1 Second?
- The Alchemist
- · Replies 2 ·
Graduate Two Universities in China succeeded in quantum teleportation
- wengsee
- · Replies 9 ·
Graduate Photo-excitation and photo-ionization
- dhruv.tara
- · Replies 4 ·
Graduate 3rd order derivatives in the lagrangian
- RedX
- · Replies 3 ·
Graduate Canonical vs. path integral quantization
- earth2
- · Replies 3 ·
Graduate Measuring Spin of a Particle Without an External Field
- LostConjugate
- · Replies 9 ·
Undergrad Can maxwell's EM theory explain the photoelectric effect?
- needguidance
- · Replies 3 ·
Graduate Why Does the Electron Jump Between Stationary States?
- Qubix
- · Replies 7 ·
Graduate Integrating by parts in path integral (Zee)
- GreyBadger
- · Replies 3 ·
Graduate Understanding Hydrogen 2p Doublet: Removing Orbital-Spin Degeneracy
- oddiseas
- · Replies 1 ·
Graduate Why does the Coulomb gauge work despite breaking Lorentz invariance?
- RedX
- · Replies 3 ·
Graduate Spin, let me make sure I have this straight
- LostConjugate
- · Replies 3 ·
Graduate Temporal Extension of Quantum Uncertainty (A Theoretical Quantum Fortune Teller)
- MnM Show
- · Replies 6 ·
Graduate Sending information via quantum entanglement?
- Superstring
- · Replies 20 ·
Undergrad Question: eV level of orbiting electrons
- deviantcoil
- · Replies 4 ·
Graduate Position and momentum measurements on entangled particles
- Bevels
- · Replies 15 ·
Graduate About uncertainty relationship
- wengsee
- · Replies 2 ·
Graduate Using wave\particle duality to predict future event?
- MnM Show
- · Replies 3 ·
Graduate How Does the Feynman Propagator Change When Multiple Photons Are Involved?
- Pants
- · Replies 3 ·
Undergrad Calculating photon reflection probability for glass at 45 degrees
- QuED
- · Replies 2 ·
Graduate Question of the behavior of particles in observation
- sshort75
- · Replies 1 ·
Graduate Does measuring one electron's spin collapse the entangled pair's wave function?
- Mr.Illusion
- · Replies 6 ·
Graduate Why don't discontinuous paths vanish in the continuum limit of path integrals?
- marsel martin
- · Replies 9 ·
Undergrad Chirality and helicity in the Dirac equation and quantum fields
- jhon
- · Replies 2 ·
Graduate Quantum mechanics integration techniques reference
- Cosmossos
- · Replies 1 ·
Graduate Wilsonian effective field theory
- LAHLH
- · Replies 2 ·
Graduate Total control of natural forces Quantum Mechanics new defined (?)
- deppdeppel
- · Replies 1 ·
Graduate Using the time evolution operator
- ian2012
- · Replies 2 ·
Graduate Nonconservation of axial charge
- TriTertButoxy
- · Replies 7 ·
Graduate InVisage: Quantum Film - real of fake?
- cf8
- · Replies 2 ·
Graduate Where does new information come from in superposition
- nomadreid
- · Replies 7 ·
Graduate Why is Quantum thoery so confusing that no body actually understand it ?
- Rico L
- · Replies 54 ·
Graduate About Photon as an independent entity
- DaTario
- · Replies 2 ·
Graduate What is the significance of the Ramsauer-Townsend effect?
- oddiseas
- · Replies 5 ·
Graduate What Is Probability Current Density in Quantum Mechanics?
- mess1n
- · Replies 1 ·
Graduate Can a Hamiltonian be unbounded ?
- zetafunction
- · Replies 2 ·
Graduate Solve Momentum Expectation Change w/ Ehrenfest's Thm
- 1Kris
- · Replies 1 ·
Graduate Why multiply on the right side in the bra-ket equation
- ian2012
- · Replies 13 ·
Graduate Is intregral particle number a theoretical assumption?
- pellman
- · Replies 9 ·
Graduate What are the key differences between H1 and H2 Hilbert spaces?
- amalmirando
- · Replies 1 ·
Graduate Fermion annihilation operators from position and momentum
- haael
- · Replies 1 ·
Graduate How does the uncertainty principle relate to Maxwell's equations?
- nomadreid
- · Replies 9 ·
Graduate The Basic premises behind quantum mechanics
- ask_LXXXVI
- · Replies 2 ·
Graduate Do bound state wave functions decay at infinity?
- tom.stoer
- · Replies 10 ·
Graduate General method for solving SE
- quZz
- · Replies 3 ·
Graduate Why does observing an electron prevent it from entering a superposition?
- melkorthefoul
- · Replies 1 ·
Graduate Computation of the effective action (Peskin 11.4)
- babamarysol
- · Replies 1 ·
Graduate Why does a laser beam diverge even with perfectly parallel photons?
- Rattus_norveg
- · Replies 17 ·
Graduate N-point Green's function in QFT
- Dyson
- · Replies 4 ·
Undergrad Hydrogen Spectral Series Question
- Bevels
- · Replies 3 ·
Graduate Questions about phase velocity, and group velocity
- ntusg
- · Replies 11 ·
Graduate Slit interference pattern depends or whether there is a clock in the room?
- m.e.t.a.
- · Replies 18 ·
Graduate Massive Particles and Standing Waves
- LarryS
- · Replies 17 ·
Graduate Hamiltonian of spin 1/2 in tangential magnetic field
- johnsmi
- · Replies 2 ·
Graduate The 'i' in the momentum operator
- aspy591
- · Replies 5 ·
Undergrad What type of wave does the electron travel as?
- Rattus_norveg
- · Replies 3 ·