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
Undergrad When do I use these equations for calculating linewidths?
- Gavroy
- · Replies 1 ·
Graduate Tensor products of representation - Weyl spinors and 4vectors
- teddd
- · Replies 10 ·
Graduate Do Photons Have Electromagnetic Properties That Cause Attraction?
- ramanakumars
- · Replies 7 ·
Graduate Expectation value , a few questions
- fluidistic
- · Replies 11 ·
Graduate Are Quantum Waves Tangible or Merely Mathematical Constructs?
- mysearch
- · Replies 14 ·
Graduate Question Regarding Harmonic Oscillator Eigenkets
- Thunder_Jet
- · Replies 4 ·
Graduate Can you define quantum mechanics in just one sentence?
- Demystifier
- · Replies 59 ·
Graduate Many Paths = Huygens’ Principle?
- exmarine
- · Replies 3 ·
Graduate Can the Bohr Model Accurately Predict Electron Energy in a Magnetic Field?
- Gavroy
- · Replies 1 ·
Graduate Probability Current: from plane wave to wave packet?
- nonequilibrium
- · Replies 14 ·
Graduate Ehrenfest Theorem: Deriving Minus Sign in Commutator
- PineApple2
- · Replies 3 ·
Graduate Weak force and axial vector coupling
- a dull boy
- · Replies 3 ·
Graduate Quadrature Operators & Uncertainty Principle
- McLaren Rulez
- · Replies 2 ·
Graduate We make the world by participating in it
- bobsmith76
- · Replies 23 ·
Graduate Double Delta Function Potential
- jhosamelly
- · Replies 4 ·
Graduate Path integral for a particle coupled to a magnetic field
- IRobot
- · Replies 2 ·
Graduate Dirac Equation for H atom - what's the small r behaviour?
- petergreat
- · Replies 5 ·
Graduate Weak force vertex factor V - A
- a dull boy
- · Replies 2 ·
Graduate What is the context of observation in this video?
- ode_to_joy
- · Replies 76 ·
Graduate Rigged Hilbert Space's And Quantum Mechanics
- bhobba
- · Replies 8 ·
Graduate Measurement disturbs the system.
- jewbinson
- · Replies 23 ·
Graduate The Exponential of an infinite sum
- WastedGunner
- · Replies 1 ·
Graduate Quantum Model of an Atom with more than one electron
- da_steve
- · Replies 3 ·
Graduate Decomposing the direct sum as direct product
- elduderino
- · Replies 2 ·
Graduate Absorption of Light: IR, Visible & Hydrogen Atom
- Gavroy
- · Replies 3 ·
Graduate Schrodinger's Equation & Measurement
- StevieTNZ
- · Replies 1 ·
Graduate Wondering about quantum information and phase factors.
- Beer-monster
- · Replies 2 ·
Graduate Why QFT is asymptotic theory but still being very useful?
- ndung200790
- · Replies 5 ·
Graduate A couple of questions about quantum mechanics.
- LiamSP
- · Replies 1 ·
Graduate Schrodinger Equation: No Higher Powers of ψ
- logearav
- · Replies 4 ·
Undergrad Properties of Light and its Relationship to Strength
- nds34
- · Replies 7 ·
Graduate Schrödinger's equation and line width
- Gavroy
- · Replies 4 ·
Graduate Why do the forces of nature act on each other?
- skullcracker
- · Replies 15 ·
Graduate Quantum Entanglement FTL Thought Experiment
- AustinLee
- · Replies 2 ·
Graduate The real meaning of probability density?
- jeebs
- · Replies 4 ·
Graduate Why is the Spectrum of Ordinary Light Bulbs Continuous?
- Gavroy
- · Replies 2 ·
Graduate Mass Defect & the Strong Force in Nucleons
- spectragal
- · Replies 5 ·
Graduate Can Particles Exist in Multiple Times Through Quantum Time Dilation?
- Voodoo Chile
- · Replies 12 ·
Graduate Does Spin Have Rotational Kinetic Energy?
- LarryS
- · Replies 17 ·
Graduate Ground state radiation question
- elegysix
- · Replies 7 ·
Graduate Modelling non ideal apparatus in quantum mechanics
- deneve
- · Replies 1 ·
Graduate Energy level of hydrogen atom - with the electron replaced by a positron
- kyva1929
- · Replies 3 ·
Graduate Six Superheavy Gluons: Fact or Fiction?
- Vorde
- · Replies 6 ·
Graduate A thought on Heisenberg Uncertainty Principle
- dlinetackle
- · Replies 3 ·
Graduate Symmetrization Principle for Identical Particles with Different Spin
- center o bass
- · Replies 1 ·
Graduate How to do wick rotated surface int (srednicki ch75)
- LAHLH
- · Replies 2 ·
Graduate Probabilities in Quantum Mechanics
- StevieTNZ
- · Replies 1 ·
Graduate Photoionization what will happen to compounds?
- d.sonali20
- · Replies 13 ·
Graduate Atomic Entanglement: Could Macro Objects Become Entangled?
- Thenewdeal38
- · Replies 16 ·
Graduate Opposite spin of entangled photons
- thenewmans
- · Replies 4 ·
Graduate What would happen if entangled particles experienced the twin paradox scenario?
- mirhagk
- · Replies 7 ·
Graduate Weyl ordering of the hamiltonian
- Jack2013
- · Replies 2 ·
Graduate Light waves, photons; sound waves, phonons; water waves, hydrons ?
- jetwaterluffy
- · Replies 5 ·
Graduate Single slit interfernce with large particels
- Thenewdeal38
- · Replies 3 ·
Graduate Photon polarization and 1/2 wave plates
- zincshow
- · Replies 6 ·
Graduate Do atoms always exist even when unobserved?
- Thenewdeal38
- · Replies 27 ·
Graduate Mathematics of Quantum Mechanics
- n4n0b0y
- · Replies 6 ·
Graduate Can Length Contraction Cause Diffraction in Quantum Mechanics?
- cragar
- · Replies 3 ·
Graduate Operators and Commutators help
- TIGERHULL
- · Replies 3 ·
Graduate Can someone clear up the implications of Planck units once and for all?
- SeventhSigma
- · Replies 16 ·
Undergrad How to realize the stern gerlach experiment ?
- zodian
- · Replies 16 ·
Graduate Why is an imaginary part necessary in the Lippmann-Schwinger equation?
- Sparticle99
- · Replies 4 ·
Graduate Representing the state of a quantum system in different bases
- epsilonjon
- · Replies 4 ·
Graduate Can People Collapse Wave Functions with their Eyes?
- Thenewdeal38
- · Replies 3 ·
Graduate Wheelers Delayed Choice Experiment?
- Thenewdeal38
- · Replies 7 ·
Graduate Debunking the Double Slit Experiment: Misinterpretations and Misrepresentations
- Thenewdeal38
- · Replies 4 ·
Undergrad Molecular orbital analysis - d0 complexes
- salazar888
- · Replies 1 ·
Graduate Point-like particles, Lorentz invariance and QM/QFT
- TrickyDicky
- · Replies 85 ·
Graduate Hamilton-Jacobi Equation related to Schrodinger?
- Casco
- · Replies 4 ·
Graduate Energy Eigenstates: Can Electron in Hydrogen Atom?
- ralqs
- · Replies 4 ·
Undergrad Most probable radii in hydrogen ?
- khurram usman
- · Replies 1 ·
Graduate Lorentz Invariant Volume Element
- Spriteling
- · Replies 1 ·
Graduate Can someone explain the quantum eraser please?
- Thenewdeal38
- · Replies 22 ·
Graduate Can You Distinguish a Vacuum State in Different Color Laser Pulses?
- phonon44145
- · Replies 4 ·
Undergrad Can the Double Slit Experiment Be Conducted with C60 Molecules?
- 4everlonging
- · Replies 5 ·
Graduate Probability distribution of classical momentum
- bouken
- · Replies 11 ·
Graduate Verifying Inner Product Space: q(x)e^-(x^2/2)
- Thunder_Jet
- · Replies 6 ·
Graduate Standard deviation for a determinate state of observable Q
- armis
- · Replies 8 ·
Graduate Classical Physics compared to Quantum Physics?
- studentxlol
- · Replies 2 ·
Graduate When does quantum take over classical?
- DrummingAtom
- · Replies 5 ·
Graduate Link between quantummechanical probabilistics and entropy
- entropy1
- · Replies 2 ·
Graduate Greiner Mueller's QM II Symmetry
- goedelite
- · Replies 9 ·
Graduate A question regarding a Hamiltonian.
- MathematicalPhysicist
- · Replies 5 ·
Graduate Separation of variables for non-central potentials
- dongsh2
- · Replies 6 ·
Graduate Is Heisenberg uncertainty principle a problem of our measuring techniques?
- valekovski
- · Replies 45 ·
Graduate Momentum and Translation operator.
- Black Integra
- · Replies 3 ·
Graduate Why does the inner produce in Hilbert space use fg* and not f*g?
- nomadreid
- · Replies 11 ·
Graduate Gauge invariance of QED if the photon has a mass
- shakespeare86
- · Replies 16 ·
Graduate Discrete eigenvalues and their eigenfunctions
- ralqs
- · Replies 5 ·
Graduate If time travel is possible does it allow for violation of the no clone theorem
- bert444
- · Replies 15 ·
Graduate Does QM end Free Will/ Determinism debate ?
- Van Dort
- · Replies 5 ·
Graduate Are Vacuum Fluctuations and QM Connected in Feynman Diagrams?
- TrickyDicky
- · Replies 5 ·
Graduate Reduced Density Matrix: Explained for Ron
- shomey
- · Replies 20 ·
Graduate Quantum mechanics or quantum theory?
- bostonnew
- · Replies 11 ·
Graduate Problem with Talmi Transformation
- magnificat
- · Replies 1 ·
Undergrad Why does the stopping potential not depend on the intensity of incident light?
- P-Jay1
- · Replies 6 ·
Graduate How is quantum entanglement a fact?
- conner.ubert
- · Replies 5 ·
Graduate Mechanics of Stern-Gerlach Experiments Question.
- Black Integra
- · Replies 1 ·
Graduate Understanding Scattering Theory: Seeking Easy-to-Read References
- Karmerlo
- · Replies 1 ·
Graduate What Happens to the Photons in Destructive Interference?
- peter.ell
- · Replies 24 ·