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
Graduate Why Do Vacuum Energy Calculations Vary Between d^3k and d^4k Integrals?
- robousy
- · Replies 10 ·
Graduate Heisenberg Undertainty Principle
- cutekawaii
- · Replies 3 ·
Graduate Photons - the smallest building block?
- Raap
- · Replies 7 ·
High School Conducting the Double Slit Experiment
- AzonicZeniths
- · Replies 6 ·
Graduate Wave equation - vector notation
- lehel
- · Replies 2 ·
Undergrad Photoelectric Emission: Why Does Number of Electrons Decrease?
- ay2k
- · Replies 8 ·
Graduate Wavefunction of relativistic free particle
- I_wonder
- · Replies 7 ·
Graduate Many body problem -> non-interacting particles
- JustinLevy
- · Replies 4 ·
Graduate About the origen of the fundamental theories
- mmzaj
- · Replies 6 ·
Undergrad What Determines the Frequency and Wavelength of Electromagnetic Radiation?
- Shukie
- · Replies 14 ·
Undergrad Understanding Quantum Energy Levels in Bohr's Model of the Atom
- newguy1234
- · Replies 6 ·
Graduate Speed Quanta: Is There a Lower Limit?
- Physonic
- · Replies 4 ·
Graduate Anyone know of a good QF doco?
- thesecularist
- · Replies 5 ·
Undergrad Antiparticle and particle annihilation
- bassplayer142
- · Replies 1 ·
Graduate Where do fermion properties come from?
- jostpuur
- · Replies 4 ·
Graduate Pressure of an electron gas at 0K
- nvs9
- · Replies 6 ·
Undergrad Questions on Neutrinos: How Do We Know?
- Ms Music
- · Replies 3 ·
Undergrad Did I Make a Mistake? A Sign Error in an Exercise Answer
- lark
- · Replies 2 ·
Graduate Existence of Virtual Particles
- Bose
- · Replies 5 ·
Graduate Proof that (p + ix) operator is non-hermitian (easy)
- halfoflessthan5
- · Replies 3 ·
Graduate Calculate something with QFT - I dare you
- pellman
- · Replies 11 ·
Graduate Solving Hamiltonian with chain of charge centers?
- Gerenuk
- · Replies 1 ·
Graduate Momentum operator in Schrodinger equation
- Bose
- · Replies 5 ·
Graduate Dimensionality and vectors in quantum mechanics
- chris_183
- · Replies 1 ·
Graduate Does the Beer-Lambert Law Apply Differently in Active Environments?
- Physicsissuef
- · Replies 4 ·
Undergrad Lasers, photo-electric effects and ionization of atoms
- Nerd
- · Replies 12 ·
Graduate How important is experience in QM?
- reilly
- · Replies 1 ·
Graduate Solving schrodingers numerically
- Nigel_baxter
- · Replies 2 ·
Graduate Is Time Travel the Key to Understanding Dirac's Equation and Positron Creation?
- Bose
- · Replies 2 ·
Graduate Summary of the key formula of QFT
- kdv
- · Replies 9 ·
Graduate Uncertainty principle and photon
- spidey
- · Replies 4 ·
Graduate Renormalizability - how to determine if a theory is renormalizable?
- mhill
- · Replies 3 ·
Graduate Understanding Double Slit Interference in Electron Diffraction
- Noj Werdna
- · Replies 40 ·
Graduate Creation/annihilation operators
- jdstokes
- · Replies 16 ·
Undergrad Atomic Radius Increase Up Periodic Table: Why?
- nuby
- · Replies 1 ·
Graduate The difference between BOSONS and FERMIONS
- abdullahbameh
- · Replies 3 ·
Graduate Evaluate the Klein-Gordon action
- auditor
- · Replies 1 ·
Graduate Preferred basis and prereduction of density matrices
- comote
- · Replies 6 ·
Graduate Discrete spacetime means discrete momentum ?
- mhill
- · Replies 1 ·
Undergrad Significace of i*sin(wt) in SHM [cos(wt)+i*sin(wt)]
- phlegmy
- · Replies 6 ·
Graduate Uncertainty Principle & Measuring Momentum: Is There a Confusion?
- spidey
- · Replies 2 ·
Undergrad A question about Photoelectric Effect
- Hevonen
- · Replies 25 ·
Graduate The necessity of time-dependence in making approximations of the H2+ molecule
- IHateMayonnaise
- · Replies 2 ·
Graduate Heisenberg Uncertainty Principle to estimate the position uncertainty
- tinsleyjamaal
- · Replies 11 ·
Graduate What is the particle pair phenomenon and how does quantum entanglement work?
- macd
- · Replies 2 ·
Graduate Atomic Oscillations: Frequency, Nuclear & Wave Function
- Donn P
- · Replies 5 ·
Graduate Klein-Gordon equation for electro-magnetic field?
- Lojzek
- · Replies 27 ·
Graduate Uncertainty principle and vacuum fluctuations
- spidey
- · Replies 4 ·
Graduate Question about density matrices
- jdstokes
- · Replies 2 ·
Graduate Is Electron Spin Just a Mathematical Concept?
- Dahaka14
- · Replies 11 ·
Graduate Why is Schrodinger's Cat only a thought experiment?
- DaveC426913
- · Replies 55 ·
Graduate Time evolution and the Dirac Equation
- arunma
- · Replies 3 ·
Graduate Plane waves not physical states?
- jdstokes
- · Replies 4 ·
Graduate Why forces are modeled as virtual particles in quantum mechanics?
- aachenmann
- · Replies 1 ·
Graduate Understanding Plane Wave Solutions in Quantum Mechanics
- siresmith
- · Replies 19 ·
Graduate Backward causation intepretation
- michael879
- · Replies 1 ·
Graduate Representation of j=1 rotation matrix
- jdstokes
- · Replies 4 ·
Graduate How to Find the Ground State of a System of Identical Bosons?
- noospace
- · Replies 4 ·
Graduate Photovoltaic and Superconductivity
- MIC
- · Replies 6 ·
Undergrad Calculating Photon Energy Needed to Exceed Fused Silica Glass Band Gap
- vachan
- · Replies 1 ·
Graduate Interactions that cause entanglement
- RabitHolRules
- · Replies 12 ·
Graduate Understanding Local Gauge Symmetry
- alphachapmtl
- · Replies 3 ·
Graduate What if Cramer's FTL Experiment Worked?
- peter0302
- · Replies 2 ·
Graduate Is Time Elapsed During Photon Absorption a Quantum Illusion?
- tmoan
- · Replies 5 ·
Graduate I've just finished reading Einstein's Biography by Walter Isaacson.
- scoobydoo
- · Replies 6 ·
Graduate Is teleportation just advanced cloning?
- KCL
- · Replies 5 ·
Graduate Is Scientific Publishing Fair in the Context of Hawking's Manuscript?
- spidey
- · Replies 8 ·
Graduate Momentum-space detection of an Electron (EWP)
- logic smogic
- · Replies 1 ·
Graduate Virtual Particles: How They Work
- asimov42
- · Replies 5 ·
Graduate Quantum Mechanics for the 'lay person'
- bockerse
- · Replies 14 ·
Graduate Uncertainty Principle and Single-Slit Diffraction
- peter0302
- · Replies 10 ·
Graduate Variation on Dopfer Experiment - Why Won't This Work?
- peter0302
- · Replies 9 ·
Graduate Quantum Non-Locality Subspace Radio
- admiral_butts
- · Replies 2 ·
Graduate Unification 'theory' (small energy)
- usnpilot2012
- · Replies 1 ·
Graduate Do Commuting Observables in Quantum Physics Share Common Eigenfunctions?
- IHateMayonnaise
- · Replies 3 ·
Graduate Photons - Wavelength and Wavepackets
- Usaf Moji
- · Replies 1 ·
Graduate Entanglement Explained with Epistomological Probability Theory
- peter0302
- · Replies 23 ·
Graduate Quantum Field Theory online book, 885pages
- malawi_glenn
- · Replies 1 ·
Graduate Questions on Electron Orbitals, Wave Packets, and Coherent States
- logic smogic
- · Replies 7 ·
Graduate Nine formulations of Quantum Mechanics
- CarlB
- · Replies 2 ·
Graduate What is the Role of Magnetic Fields in Allowing Electron Transitions?
- dachikid
- · Replies 2 ·
Graduate Operator Rotation: Expressing in New Reference Frame
- jdstokes
- · Replies 3 ·
Graduate How do bilinear covariants relate to the Dirac equation's broader implications?
- jdstokes
- · Replies 1 ·
Graduate Vacuum Fluctuations: Particles & Antiparticles
- spidey
- · Replies 8 ·
Graduate Calculating Base State for the H Atom using Inverse Fourier Transform
- Gatts
- · Replies 3 ·
Graduate Is Annihilation Really Just Positronium Ground State?
- michael879
- · Replies 2 ·
Graduate Schrodinger equation graph help
- Cnslr2000
- · Replies 6 ·
Graduate Entanglement + Fusion: need a visual metaphor
- RabitHolRules
- · Replies 9 ·
Graduate Elementary particles and fermat's principle
- spidey
- · Replies 3 ·
Graduate Probability of staying in same state after time-dep perturbation?
- vincebs
- · Replies 1 ·
Graduate Is entanglement just a mathematical construct or is it a real phenomenon?
- olcay
- · Replies 48 ·
Graduate Where Can I Find Pauli's Original Proof of the Spin-Statistics Theorem?
- coolguy
- · Replies 12 ·
Graduate Superliminal Information Transfer
- Luke212
- · Replies 10 ·
Graduate Are Electrons Photons Stuck in Atom's Nucleus?
- nuby
- · Replies 5 ·
Graduate Constructing time-independent wave function with given energies
- droedujay
- · Replies 2 ·
Graduate Understanding the Mystery of Photon Wavefunction in Quantum Field Theory
- pellman
- · Replies 18 ·
Graduate Matter-antimatter annihilation
- GRB 080319B
- · Replies 5 ·
Graduate Quantum Field Theory: Field Operators and Lorentz invariance
- flix
- · Replies 6 ·
Graduate Frequency of a particle? Frequency of what?
- WraithM
- · Replies 4 ·
Graduate How Does Light Diffraction Occur in Plasma?
- Relena
- · Replies 1 ·