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.
Sub-forums
Threads
Graduate Variations of double slit experiment
- igorcov
- · Replies 3 ·
High School Finding free access to classic physics papers by Einstein and Hawking
- Rhydo
- · Replies 3 ·
Graduate Can Pauli's Exclusion Principle be Explained? A Decade Later
- esmeralda4
- · Replies 8 ·
Graduate Why in scattering processes q^2 is negative?
- Mesmerized
- · Replies 5 ·
Graduate Question; double-slit and wavefunction relationship
- James S Saint
- · Replies 18 ·
Graduate Virtual particles inside black holes
- Daddo0711
- · Replies 5 ·
Graduate Langevin to Fokker-planck? Uh oh
- JVanUW
- · Replies 2 ·
Graduate Ginsparg Applied Conformal Field Theory
- physicus
- · Replies 4 ·
Graduate Hello my first post more of a philosophical question if anything
- zackness123
- · Replies 4 ·
Graduate Why Are Wave Functions Additive in Quantum Mechanics?
- freddyfish
- · Replies 4 ·
Graduate Can someone explain to me the wave theory and quantum theory.
- zackness123
- · Replies 1 ·
High School Where did the sun's absorbed radiation come from as a black body?
- ehabmozart
- · Replies 4 ·
Graduate Useage of the term field in QFT
- kith
- · Replies 10 ·
Undergrad Me not falling through the ground and Pauli's Exclusion Principle
- Swimmingly!
- · Replies 6 ·
Graduate Quantum Physics from Classical Physics with an epistemic restriction
- yoda jedi
- · Replies 7 ·
Graduate How Do I Find the Energy of a Non-Hermitian Hamiltonian with Bosonic Operators?
- ozlemathph
- · Replies 2 ·
Graduate Is vacuum having any temperature.?
- aditya23456
- · Replies 3 ·
Graduate Proving linear combinations of Schrödinger solutions are also solutions
- freddyfish
- · Replies 2 ·
Graduate Hermitian operators = values of variables
- arlesterc
- · Replies 1 ·
Graduate Energy transfer from photon to an electron - Compton vs Photoelectric
- kapitan90
- · Replies 4 ·
Graduate Deutsch and Hayden on locality
- martinbn
- · Replies 7 ·
Graduate Complex numbers from unitarity from information conservation?
- friend
- · Replies 4 ·
Graduate What are the eigenstates of quantum fields?
- Lapidus
- · Replies 16 ·
Graduate I have never seen a Grassmann Number
- the_pulp
- · Replies 6 ·
Graduate Can We Accurately Describe the Universe with One Giant Wave Function?
- PSarkar
- · Replies 17 ·
Graduate Energy/particle number uncertainty in a laser beam
- Sonderval
- · Replies 6 ·
Graduate Is probability a fundamental aspect of quantum mechanics?
- juzzy
- · Replies 76 ·
Graduate Some basic misunderstanding in Quantum Mechanics
- junhui.liao
- · Replies 2 ·
Graduate Gluon Scattering - Colored Feynman Rules for Yang Mills Theory
- maverick280857
- · Replies 2 ·
Graduate Can a electron be stationary.?
- aditya23456
- · Replies 2 ·
Graduate Why can information not be transmitted via phase velocity?
- San K
- · Replies 3 ·
Undergrad Probability density versus radial distribution function
- ishchayill
- · Replies 12 ·
Graduate Superconductivity by quantum tunneling?
- Stanley514
- · Replies 3 ·
Graduate Sign Convention For Momentum Operators
- Septim
- · Replies 4 ·
Graduate Will this anology for zero-point energy work?
- Ger
- · Replies 1 ·
Graduate What's the color of Hawking radiation?
- Warp
- · Replies 2 ·
Graduate Why is the center of mass energy linked to the parameter \mu?
- physicus
- · Replies 1 ·
Graduate Double slit experiment at home
- shantanu_l
- · Replies 2 ·
Graduate Mathematical Foundations of the Relativistic Theory of Quantum Gravity
- AlexKid
- · Replies 6 ·
Graduate Question: Early history of QM
- patrickd
- · Replies 3 ·
Graduate Does Hamilton's principle follow from the Feynman formulation of QM?
- Jano L.
- · Replies 2 ·
Graduate Phase operator in quantum optics
- kith
- · Replies 2 ·
Graduate How would this universe be if there's NO UNCERTAINITY PRINCIPLE
- aditya23456
- · Replies 29 ·
Graduate A followup to my previous question
- Fiziqs
- · Replies 4 ·
Graduate Do subatomic particles have a defined size?
- alvarogz
- · Replies 3 ·
Graduate Double Slit Experiment and Quantum Eraser
- DylanLou
- · Replies 55 ·
Graduate Hiesenberg uncertainty principle, h or hbar?
- rash92
- · Replies 3 ·
Graduate How to evaluate the commutator of direct product?
- PRB147
- · Replies 1 ·
Graduate Net momentum of gamma rays from complex multi-stage collision chain
- UltrusViderat
- · Replies 1 ·
Undergrad Why are some materials transparent?
- center o bass
- · Replies 3 ·
Graduate Difference between classical wave function and quantum wave function
- Casco
- · Replies 12 ·
Graduate Infrared spectroscopy and symmetry
- Chemist20
- · Replies 1 ·
Graduate Why is the spin in a mirror image opposite?
- nonequilibrium
- · Replies 9 ·
Graduate Why doesn't the energy come out right in the Dirac Equation?
- Xezlec
- · Replies 4 ·
Graduate Casimir Effect within a Circular Topography
- chords
- · Replies 1 ·
Graduate What does von Neumann's chain concept say about where the measurement cut can be placed?
- Varon
- · Replies 2 ·
Undergrad A free electron in a total vacuum
- Bastian74
- · Replies 2 ·
Graduate Mach-Zehnder interferometer with unequal path lengths
- naffin
- · Replies 5 ·
Graduate Number of photons in a mode (in a blackbody)
- dydxforsn
- · Replies 1 ·
Graduate What are the loopholes in entanglement swapping?
- San K
- · Replies 11 ·
Graduate Lorentz transform of a scalar in QM
- geoduck
- · Replies 2 ·
Graduate Why does Lagrangian density depend only on first derivatives?
- bigbigtheory
- · Replies 3 ·
Graduate Weak interactions: I know why they're weak, but why are they slow?
- nonequilibrium
- · Replies 3 ·
Graduate Square shape wave packet spreading
- youngurlee
- · Replies 3 ·
Graduate Different between L^2 and L in Hydrogen atom
- chunhui219
- · Replies 1 ·
Graduate Applications of Invariant Theory to Quantum Physics
- timb00
- · Replies 1 ·
Graduate Variation Method for Higher Energy States
- aim1732
- · Replies 2 ·
Graduate How does Planck's blackbody law follow from the radiation formula?
- robertjford80
- · Replies 2 ·
Graduate Fine structure constant and energy scale
- asimov42
- · Replies 4 ·
Graduate Cut-off distance parameter in inelastic electron tunneling current
- Huor Earfalas
- · Replies 1 ·
Graduate The electric dipole approximation
- spaghetti3451
- · Replies 2 ·
Undergrad Energy Emission: Electrons vs Protons
- scientifico
- · Replies 3 ·
Undergrad Is the number of cycles in a wave related to the uncertainty in the wavelength?
- Infrasound
- · Replies 2 ·
Graduate Early annihilation of antimatter
- Jared409
- · Replies 2 ·
Graduate On the use of Hilbert Spaces to represent states
- the_pulp
- · Replies 55 ·
Undergrad Does a white shirt weight more
- ahuberpsu
- · Replies 2 ·
Graduate Can The Free Electrons Be Polarized?
- wantommy
- · Replies 5 ·
Graduate The mechanics of calculating Reduced Density Matrices
- QITStudent
- · Replies 1 ·
Graduate Entanglement in QFT: Free Particle Decay
- LarryS
- · Replies 1 ·
Graduate QED Explanation of Force Between Motionless Particles
- jjustinn
- · Replies 2 ·
Graduate Transformation of observables by permutation
- buttolo
- · Replies 3 ·
Graduate How photon is force carrier of electromagnetic force in macroscopic level.?
- aditya23456
- · Replies 4 ·
Graduate Why is heisenberg uncertainty not a limit of technology?
- danphan323
- · Replies 38 ·
Graduate Hydrogen Atom in Uniform Electric Field
- Frank0
- · Replies 2 ·
Graduate Instant communication with a modified ZWM apparatus?
- al onestone
- · Replies 13 ·
Graduate Redundancy of Virtual Particles Borrowing Energy
- e2m2a
- · Replies 17 ·
Graduate QFT w/ Negative Mass: Spin 0 vs Spin 1/2
- nonequilibrium
- · Replies 3 ·
Graduate What branch of mathematics to study to understand Quantum Mechanics?
- Buzzworks
- · Replies 11 ·
Graduate Does the Dirac equation predict the same hydrogen spectral lines as Schrödinger?
- foobar
- · Replies 37 ·
Graduate A particle in a 2d circle with potential
- Bokul
- · Replies 2 ·
How to find your original timeline if decisions send you to random realities
- Raavenous
- · Replies 2 ·
Graduate What types of particles have a higher probability of tunnelling?
- idea2000
- · Replies 1 ·
Graduate Entanglement, Entropy and Energy
- kirk1729
- · Replies 1 ·
Graduate Single Electron D-slit Interference Experiment
- Xverse
- · Replies 3 ·
Graduate Rigorous Quantum Mechanics text or online
- danjordan
- · Replies 16 ·
Graduate Converting electron volts and Boltzmann's constant to atomic units
- brydustin
- · Replies 1 ·
Graduate Square of a hermitian operator in matrix form
- Arijun
- · Replies 3 ·
Graduate Spin of a quickly moving electron
- Adam Lewis
- · Replies 1 ·
Graduate Did Neil de Grasse Tyson contradict himself on general relativity's complexity?
- robertjford80
- · Replies 12 ·
Graduate Whats potential energy of a electron left in free space outside atom.?
- aditya23456
- · Replies 7 ·