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 Density of a subatomic particle
- texasratt
- · Replies 1 ·
High School What is the difference between probability and probability density?
- ray.deng83
- · Replies 4 ·
Undergrad Simple Energy Levels confusion
- alexgmcm
- · Replies 3 ·
Graduate A relation between photon and electron - need discussion
- bpm_vns19
- · Replies 3 ·
Graduate What does it mean to normalize a non-normalized wavefuction as in
- physixchic
- · Replies 2 ·
Graduate Particle in a potential Well interacts with the wall without touching it?
- I_am_learning
- · Replies 39 ·
Graduate Lack of Relativistic Consideration
- pzona
- · Replies 8 ·
Graduate What Are the Selection Rules for the Zeeman Effect?
- KFC
- · Replies 1 ·
Graduate Expectation formula in Dirac notation.
- david.makcenz
- · Replies 1 ·
Undergrad What Does 'me' Represent in This Physics Formula?
- musraupp@mac.
- · Replies 5 ·
Graduate Is this a correct understanding?
- gabrielh
- · Replies 2 ·
Graduate Info regarding energy density of empty space?
- FluffyFriend
- · Replies 2 ·
Graduate Non-relativistic limit of Klein Gordon (and massless limits)
- haushofer
- · Replies 3 ·
Graduate Double slit - where do they aim?
- Vdtta
- · Replies 13 ·
Graduate Derivation of Schrodingers Equation
- I_am_learning
- · Replies 17 ·
Graduate What is the formula for calculating rotation speed?
- zincshow
- · Replies 3 ·
Graduate Simple Math and quantum phyiscs 5 x 0 and e =mc2?
- spacecowboy27
- · Replies 13 ·
Graduate What Does It Mean When an Operator Has Two Normalized Eigenstates?
- Slepton
- · Replies 2 ·
Graduate Does the existence of a ladder operator imply that the eigenvalues are discrete?
- Unkraut
- · Replies 10 ·
Graduate Please Compute Concurrence Whats wrong
- coffekreizy
- · Replies 1 ·
Graduate DFT for configuration of atoms
- mrandersdk
- · Replies 2 ·
Graduate Q.M. on S^6, add potential gives Q.M. on S^3?
- Spinnor
- · Replies 1 ·
Undergrad What is Macroscopic Quantization and How Does it Affect Everyday Objects?
- pzona
- · Replies 2 ·
Graduate Breaking Down the Uncertainty Principle
- einsteinoid
- · Replies 8 ·
Graduate The modern view of decoherence: A layperson's qestion
- Galteeth
- · Replies 4 ·
Graduate Pencil tipping problem - trying to understand uncertainty
- foobster
- · Replies 2 ·
Graduate Measurement collapse as a perturbation?
- Gerenuk
- · Replies 22 ·
Graduate Beginners Question Uncertainty Principle
- GarciasMuffin
- · Replies 8 ·
Graduate Questions about Quantum state, Pauli exclusion principle and chemistry.
- PrincePhoenix
- · Replies 2 ·
Graduate How to solve the Klein Gordon Complex Field?
- maverick280857
- · Replies 36 ·
Graduate Infinite volume limit literature?
- DrFaustus
- · Replies 3 ·
Graduate Acceleration of the Photon and the shape of it's wave
- voxmagnetar
- · Replies 7 ·
Graduate TED Presentation, April 2009: Allosphere, data visualization
- rhody
- · Replies 1 ·
Graduate Casimir effect - silly question, but
- nomadreid
- · Replies 17 ·
Graduate Zero points of particle wave function?
- tuomas22
- · Replies 14 ·
Graduate What do we mean by minus energy ?
- blue bloom
- · Replies 5 ·
Graduate Particle In a finite potential well
- I_am_learning
- · Replies 10 ·
Graduate Imaginary Time and Path Integrals?
- LarryS
- · Replies 2 ·
Graduate Boundary conditions for two dimensional problems in Quantum mechanics
- PRB147
- · Replies 1 ·
Graduate Understanding the \hat{\sigma} Matrix
- Petar Mali
- · Replies 2 ·
Graduate Calculating Eigenstates and Eigenvalues of a 2D Quantum Rotor with Perturbation
- p3rry
- · Replies 6 ·
Undergrad 3 question of Ballmer experiment
- yashar
- · Replies 4 ·
Graduate Wavefunction of a 2-particle system.
- carbon9
- · Replies 16 ·
Graduate Creation and annihilation operator in quantum mechanics?
- saravanan13
- · Replies 2 ·
Graduate What is the Nature of Material Waves in Quantum Mechanics?
- I_am_learning
- · Replies 22 ·
Graduate Why Is (-i d/dx) Chosen as the Momentum Operator in Quantum Mechanics?
- RedX
- · Replies 1 ·
Graduate Wave function of Stationary State
- I_am_learning
- · Replies 16 ·
Graduate A simple QM experiment analysis question
- dmtr
- · Replies 33 ·
Undergrad Virtual Particles: How can they be responsible for attractive forces?
- peron
- · Replies 4 ·
Graduate Understanding Bose-Hubbard Model: Senior Guide
- victorphy
- · Replies 5 ·
Undergrad Solving the Mystery of Energy Levels in Hydrogen Atom - Jules
- Jules18
- · Replies 9 ·
Graduate Why does the amplitude <p |T| p'> have the dimension of a volume?
- naima
- · Replies 6 ·
Graduate Direction of vector precession
- bluestar
- · Replies 3 ·
Graduate Boundary between deterministic reality and probabilistic reality
- Galteeth
- · Replies 20 ·
Graduate What Are the Effects of Dispersion and Uncertainty on Wave Packets?
- Amith2006
- · Replies 3 ·
Can a vulcan study quantum mechanics ?
- Monocerotis
- · Replies 11 ·
Graduate Invariance of the action under a transformation
- div curl F= 0
- · Replies 2 ·
Undergrad Help Understanding "Energy Levels" in "Particle in a Box"
- Ylle
- · Replies 18 ·
Graduate Significance of Phase Factor in Quantum Mechanics Measurements
- facenian
- · Replies 3 ·
Graduate Simple question about spontaneous particle production
- jnorman
- · Replies 5 ·
Undergrad Difference between fluorescence and phorforescence
- DaTario
- · Replies 4 ·
Graduate A variation of the double-slit experiment-myth or did somone really do it?
- LodeRunner
- · Replies 16 ·
Graduate Continuity of Function and Derivative at boundary.
- Prologue
- · Replies 5 ·
Graduate Pilot Wave Theory: Mechanics Explained
- NJV
- · Replies 35 ·
Graduate Measure Momentum: Experiments & Eigenstate Detection
- paweld
- · Replies 1 ·
Graduate Cardinality argument in the Casimir effect
- nomadreid
- · Replies 1 ·
Graduate What is the Correct Form of the Uncertainty Principle?
- Denver Dang
- · Replies 6 ·
Graduate Entangled Electrons: The Mysteries of Non-Locality and Time Travel Explained
- imiyakawa
- · Replies 9 ·
Graduate Double Delta Potential Problem Solution
- maverick280857
- · Replies 17 ·
Graduate Proving lorentz invariance of Dirac bilinears
- GreyBadger
- · Replies 2 ·
Graduate What is the Difference Between Locality and Separability in Quantum Mechanics?
- Demystifier
- · Replies 32 ·
Graduate Variational Method: Approximating Complex Wave Functions with Real Quantities?
- YingXiao
- · Replies 7 ·
Graduate Proving Commuter Operators: X & P
- CPL.Luke
- · Replies 2 ·
Graduate Why no EOM in QFT with higher than second order derivatives in time and space?
- Phiphy
- · Replies 4 ·
Graduate What is physical significance of g factor?
- xfshi2000
- · Replies 35 ·
Graduate One question on average thermal velocity of free electron in metals
- ray.deng83
- · Replies 1 ·
Graduate Four Point Correlation function from Generating Functional
- maverick280857
- · Replies 1 ·
Graduate Quantum weirdness of photon behavior
- andar81
- · Replies 5 ·
Graduate Functional Quantization of Scalar Fields
- maverick280857
- · Replies 1 ·
Graduate Solving Bra-ket Multiplication: <n|(a-+a+)^4|n> = 5n2+5n+3
- crystalplane
- · Replies 1 ·
Graduate Understanding of the Fermion, Boson difference
- 0xDEADBEEF
- · Replies 4 ·
Graduate Is the total angular momentum operator J a spherical tensor operator?
- NewGuy
- · Replies 1 ·
High School A question about plank constant
- pixel01
- · Replies 6 ·
Graduate Algebraic (ladder) solutions in QM
- fantispug
- · Replies 2 ·
Graduate Is Wave Theory the Key to Understanding All Physical Phenomena?
- eoghan
- · Replies 87 ·
Graduate Question about the nature of electrons and the strong force
- noblegas
- · Replies 4 ·
Graduate Srednicki 9.17, 9.18: Sum of Diagrams with Single Source Removed
- kexue
- · Replies 3 ·
Graduate What is the QFT picture of forces?
- Gerenuk
- · Replies 7 ·
Graduate Understanding Wave Functions: A Comprehensive Guide
- ashutosha
- · Replies 1 ·
Graduate Why graviton particle theory concept is not accepted?
- sairajagopal
- · Replies 3 ·
Undergrad How does an Electron 'jump' from one orbit to the other?
- xcorat
- · Replies 14 ·
Graduate How Does Pauli-Villars Regularization Handle Three Types of Divergences?
- zetafunction
- · Replies 1 ·
Graduate Branch-cut singularity and the multiparticle contribution to the full propagator
- gremezd
- · Replies 5 ·
Graduate Do we really need loop diagrams?
- RedX
- · Replies 3 ·
Graduate Is the concept of electron shells conceptually realted to quantum tunnelling?
- Galteeth
- · Replies 2 ·
Graduate Basic question on QFT and the standard model
- jnorman
- · Replies 1 ·
Graduate Constructing Wave Function for N-Electron System
- saravanan13
- · Replies 4 ·
Graduate The wave nature of the wave function.
- espen180
- · Replies 3 ·
Graduate The Frequency of one Photon?
- voxmagnetar
- · Replies 4 ·
Graduate Finding the Trace of a Product of 4 SL(2,C) Matrices | Helpful Guide
- div curl F= 0
- · Replies 8 ·