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 How Can Wick's Theorem Be Applied to Schwinger-Dyson Equations?
- mhill
- · Replies 2 ·
Graduate Von Neumann and Wigner on the measurement problem
- A. Neumaier
- · Replies 102 ·
Graduate Novice question on Quantum Mechanics
- Gunner B
- · Replies 4 ·
Graduate Does the wave–particle duality apply only to electrons and photons?
- Femme_physics
- · Replies 16 ·
Graduate Understanding Second Quantization and Its Application in Quantum Mechanics
- QuantumClue
- · Replies 1 ·
Graduate Spin Triplet of Ortho Helium - Why Total Spin is 1?
- Master J
- · Replies 3 ·
Graduate Does photon spin imply its polarization
- a2009
- · Replies 1 ·
Graduate Quantum Coherence - matter or energy?
- sci-guy
- · Replies 3 ·
Graduate Is de Broglie-Bohm compatible with GHZ and generalized EPR?
- Dmitry67
- · Replies 5 ·
Undergrad Some very simple double slit experiment questions
- pbudz
- · Replies 4 ·
Undergrad First double-slit experiment with single electrons
- crx
- · Replies 3 ·
Graduate Are spin-up and spin-down electrons distinguishable or indistinguishable?
- wdlang
- · Replies 5 ·
Graduate Wave function evolution, stationary states and the Schrödinger equation
- NepToon
- · Replies 4 ·
Graduate Is retro-causality a science fact?
- Soumya_M
- · Replies 2 ·
Graduate Tight Binding Description of Graphene (Hamiltonian and Overlap Matrix)
- nyxynyx
- · Replies 2 ·
Graduate Q.M., Q.M.+Spin, Q.M.+Relativity; C^1, C^2, C^4, why ?
- Spinnor
- · Replies 3 ·
Graduate Trouble understanding a Peskin-Schroeder text
- praharmitra
- · Replies 1 ·
Graduate Does Feynman's QED only explain light as particles?
- StudentJoseph
- · Replies 20 ·
Graduate Double-Slit Experiment - Clarification on 'Observation'
- FeDeX_LaTeX
- · Replies 4 ·
Graduate Why is the product of Dirac spinors a 4x4 matrix?
- tommy01
- · Replies 3 ·
Graduate Exchange Interaction - Helium
- Master J
- · Replies 1 ·
Graduate Can We Solve for the Wave Function of Water?
- rodsika
- · Replies 3 ·
Graduate Use of potentials in Quantum theory
- spaghetti3451
- · Replies 8 ·
Graduate Uncertainty when multiplying measured and constant quantities
- Zarlucicil
- · Replies 2 ·
Undergrad What Is Resonant Energy Transfer and How Does It Work?
- amaresh92
- · Replies 1 ·
Graduate How to solve this photoelectric equation involving specific heat capacity
- Oloruntele
- · Replies 1 ·
Graduate Left and right-handed Weyl spinors
- goronx
- · Replies 4 ·
Graduate Heisenberg's 1927 paper on uncertainty
- Zorba
- · Replies 4 ·
Graduate What does it mean by independent (in gauge fixing of EM field)
- kof9595995
- · Replies 9 ·
Graduate Defining Hamiltonian density and deriving energy current
- daudaudaudau
- · Replies 30 ·
Graduate Deriving the gradient form of the Hamilton-Jacobi equation
- QuantumClue
- · Replies 4 ·
Graduate Does Schrodinger's Cat Paradox Suck?
- yuiop
- · Replies 157 ·
Graduate In order for decoherence to work, does it require the second law of
- StevieTNZ
- · Replies 15 ·
Graduate In stimulated emission how does the incident photon make release of
- amaresh92
- · Replies 2 ·
Graduate Difference between 'Quantum theories'
- StevieTNZ
- · Replies 70 ·
Graduate Simple harmonic oscillator - scaled variables
- randybryan
- · Replies 4 ·
Graduate Has a loophole free test of Bell's inequalties been preformed yet?
- hawaiifiver
- · Replies 1 ·
Graduate When Did Einstein First Encounter Quantum Entanglement?
- thenewmans
- · Replies 54 ·
Graduate Is there a 'decision time' for quantum states to become fixed?
- BernieM
- · Replies 4 ·
Graduate What is the functional iW[J] for a system with 2 sources or 3 sources?
- Hymne
- · Replies 4 ·
Graduate What causes quantum coherence in superconductivity and superfluidity?
- sci-guy
- · Replies 4 ·
Graduate Deriving equations of motion from a custom Lagrangian with creation operators
- jfy4
- · Replies 2 ·
Graduate How Does Fock Space Relate to Particle Interactions and States?
- Nano-Passion
- · Replies 6 ·
Graduate Time reversal symmetry breaking
- hbaromega
- · Replies 8 ·
Graduate The effect of the magnet in a Stern-Gerlach experiment
- Fredrik
- · Replies 3 ·
Graduate How Do You Determine Irreducible Representations for Group Transformations?
- RedX
- · Replies 1 ·
Graduate Double slit experiment with detectors not recording
- tofu_
- · Replies 48 ·
High School I am studying orbitals at school. They are very interesting and
- edo1493
- · Replies 6 ·
Graduate Understanding Pressure in Quantum Mechanics: Energy, Momentum, and Flux
- Dmitry67
- · Replies 8 ·
Watch "The Quantum Tamers" - Find Links Here
- Joseph14
- · Replies 8 ·
Graduate Entanglement experiments without a common source
- yuiop
- · Replies 4 ·
Graduate How many pure numbers relate to elementary particles?
- ribbie
- · Replies 7 ·
Graduate What do eigenvalues of the EM field operators represent?
- Niles
- · Replies 1 ·
Graduate Uncertainty Principle Equations
- erok81
- · Replies 11 ·
Graduate Time-reversal operator for fermions (Sakurai)
- Sdakouls
- · Replies 1 ·
Graduate BRS operator, ghost fields, Grassmann numbers
- christodouloum
- · Replies 10 ·
Graduate Electrostatic energy in annihilation process
- FredMadison
- · Replies 7 ·
Undergrad Does an excited electron cascade down or jump directly back?
- Bassalisk
- · Replies 6 ·
Graduate What is the concept of nonlocality in quantum mechanics?
- uzername
- · Replies 59 ·
Graduate What units are used after eV, MeV, GeV, etc, are divided by c^2?
- Juxtaroberto
- · Replies 4 ·
Graduate Atomic particle g-factor relationship?
- brian44cali
- · Replies 1 ·
Graduate Can destroy a real photon(mass on-shell) to create a pair massive particles?
- ndung200790
- · Replies 6 ·
Graduate Transfering Electricity w/o Medium? (Electron Beams?)
- SaudAlt
- · Replies 2 ·
Graduate Why does the uncertainty principle use equality when the inequality allows greater values?
- nanda gopal
- · Replies 1 ·
Graduate Are static E fields non existant?
- azaharak
- · Replies 6 ·
Graduate Are physics laws local or nonlocal?
- guyingfei
- · Replies 12 ·
Graduate Is Quantum Entanglement Evidence of Faster-Than-Light Information Transfer?
- Paper
- · Replies 21 ·
Graduate How Does the Transformation in Sakurai's Quantum Mechanics Work?
- omoplata
- · Replies 12 ·
Graduate Quantum fluctuations = gravity?
- zaybu
- · Replies 17 ·
Graduate Cramer's time travel experiment
- Ontoplankton
- · Replies 15 ·
Graduate Peskin Schroeder Enigmatic Equation
- IRobot
- · Replies 6 ·
Graduate Multiple wavelengths of light through much larger single slit
- littlepapa87
- · Replies 2 ·
Undergrad Does Light Have Infinite Mass When Traveling at the Speed of Light?
- demosthenes_001
- · Replies 13 ·
High School Can Quantum Tunnelling Explain the Physicist's Ice Cream Parlor Strategy?
- autodidude
- · Replies 3 ·
Undergrad Orthogonality and orthonormality ?
- new_986
- · Replies 3 ·
Graduate Deriving asymptotic expansions for difference equation coefficients
- intervoxel
- · Replies 2 ·
Graduate Is the space of total angular momentum complete?
- znbhckcs
- · Replies 4 ·
Graduate Volume integral of current density
- daudaudaudau
- · Replies 8 ·
Graduate Why doesn't the electron fall into the nucleus?
- thoughtgaze
- · Replies 104 ·
Graduate Can I Create a Focussed Electron Beam at Home with Household Items?
- kravi
- · Replies 2 ·
Graduate Heisenberg's Uncertainty principle
- Bassalisk
- · Replies 13 ·
Graduate Rectangular Potential and Constraints
- Kreizhn
- · Replies 7 ·
Graduate IR divergences by analytic continuation of parameters
- zetafunction
- · Replies 1 ·
Graduate Gauge fixing and Lorentz invariance in Yang-Mills theory
- RedX
- · Replies 10 ·
Graduate How to describe the 'real world'
- StevieTNZ
- · Replies 18 ·
Graduate How is the variation of the determinant of the metric computed?
- christodouloum
- · Replies 3 ·
Graduate Historical qustion-models of atoms
- Bassalisk
- · Replies 4 ·
Youtube maglev toy train demonstration
- Naty1
- · Replies 1 ·
Graduate Dynamic relationship of the subatomic particles
- Servantes135
- · Replies 19 ·
Graduate Why does dimensional regularization reduce photon divergence to logarithmic order?
- ndung200790
- · Replies 1 ·
Graduate How does quantum physics explain oracles?
- jahrastafaray
- · Replies 4 ·
Graduate Can Photons Pass Through Protons or Do They Always Collide?
- cbd1
- · Replies 1 ·
Graduate Shannon entropy of wave function
- friend
- · Replies 1 ·
Graduate Are Noether charges a rep of the generators on the Hilbert space
- a2009
- · Replies 1 ·
Graduate Mark Srednicki's Quantum Field Theory
- curtdbz
- · Replies 8 ·
Graduate Quantum Mechanics and Transcendental Medition
- wajed
- · Replies 5 ·
Graduate Quantum Field Theory Purly in Momentum Space?
- AJS2011
- · Replies 7 ·
Graduate Representation of Angular Momentum Operator in the (j,j')
- a2009
- · Replies 5 ·
Graduate Is Quantum Physics More Empirical or Theoretical?
- Gary_J
- · Replies 5 ·
Graduate Integration in path integral formalism?
- physengineer
- · Replies 1 ·