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 Meaning of zero probability density
- xfshi2000
- · Replies 2 ·
Graduate Position space - momentum space
- alphaone
- · Replies 18 ·
Undergrad Is interference always present in a single slit setup?
- Loren Booda
- · Replies 11 ·
Graduate MS Renormalization: Questions & Answers
- RedX
- · Replies 3 ·
Graduate What are the key concepts in Srednicki's explanation of Feynman diagrams in QFT?
- kexue
- · Replies 35 ·
High School Zeno's Paradox (Quantum Level)
- jmatejka
- · Replies 1 ·
Graduate FAQ says refraction isn’t from absorption and emission
- thenewmans
- · Replies 3 ·
Graduate Proving that d(δx) = δ(dx) in Noether's theorem
- praharmitra
- · Replies 4 ·
Graduate Inherent impossibility of knowing both position and momentum
- Curious6
- · Replies 12 ·
Graduate Inner product on boson one-particle space
- schieghoven
- · Replies 11 ·
Graduate How do you entangle particles?
- Tyris
- · Replies 21 ·
Undergrad Light Wave Particle Confusion: Can 2 Exist in Same Place?
- Emanresu56
- · Replies 1 ·
Graduate Deriving uncertainty principle and Schrödinger equation from [x,p] commutator
- Cluelessluke
- · Replies 6 ·
Graduate Solving the Entanglement Problem: A Quantum Mechanics Tutorial
- acxler8
- · Replies 3 ·
Graduate Old Quantum Theory = Oscillations?
- karkas
- · Replies 6 ·
Graduate Partial Trace For Tripartite Systems
- baid69
- · Replies 1 ·
Undergrad Recreating Thomas Young's Double Slit Experiment
- callisto132
- · Replies 2 ·
Graduate Probability Amplitude and Time Evolution Operator
- erkokite
- · Replies 1 ·
Graduate Solving Mark Srednicki QFT: Exact Propagator Problems (13.12, 13.13, 13.16)
- RedX
- · Replies 5 ·
Graduate Why does [A, [B, C]] + [B, [C, A]] + [C, [A, B]] = 0?
- haitao23
- · Replies 9 ·
Graduate Electron tunneling and classic electrdynamics.
- Austin0
- · Replies 4 ·
High School What Are Quantum Numbers and Spin in Physics?
- chmate
- · Replies 3 ·
Graduate Hamiltonian for non-conservative forces?
- Arham
- · Replies 3 ·
Undergrad Why does glass feel as cold as metal despite being non-conductive?
- lennybogzy
- · Replies 5 ·
Graduate Absorption/Emission of photons of specific frequency (Doppler Effect)
- feynomite
- · Replies 3 ·
Graduate How can one build a non-trivial operator with a zero mean value?
- luxxio
- · Replies 7 ·
Graduate Commutation relations in relativistic quantum theory
- noospace
- · Replies 7 ·
Graduate Magnetic Field in Natural Units: Expressing \hbar
- Rajini
- · Replies 9 ·
Graduate Is a Year-Long Quantum Chromodynamics Class Worth the Exam Stress?
- phys-man 69
- · Replies 12 ·
Graduate Is complex momentum density possible?
- blue2script
- · Replies 5 ·
Graduate Can a particle's wavefunction become perfectly flat in empty space over time?
- asimov42
- · Replies 1 ·
Graduate Study Lie Groups: G. 't Hooft's SU(2) Index Convention
- intervoxel
- · Replies 4 ·
Graduate Quantum Mechanical Scattering (3D) - What about forward scattering?
- maverick280857
- · Replies 2 ·
Graduate Creation Operator of Harmonic Oscillator
- KFC
- · Replies 2 ·
Graduate Why need *complex* wavefunction?
- feynmann
- · Replies 57 ·
Graduate Ehrenfest theorem and Heisenberg quantum mechanics
- luxxio
- · Replies 4 ·
Graduate Physics of Electron Probability Clouds
- nuby
- · Replies 17 ·
Can a simple wooden stick be used to send instant messages across space?
- tomtom637
- · Replies 6 ·
Graduate Eliminating the coincidence counter
- Fiziqs
- · Replies 1 ·
Graduate Constructing Unitary Matrices for Rotations in Hilbert Space
- KFC
- · Replies 5 ·
Graduate Can Momentum be Calculated Without Measuring Position in Quantum Mechanics?
- Curious6
- · Replies 4 ·
Graduate Relativistic quantum field theory:antiparticles
- Naty1
- · Replies 33 ·
Undergrad Compton scattering contributes to color in any way?
- Charlie G
- · Replies 9 ·
Graduate Forced Harmonic Oscillator with Path Integral
- Phileas.Fogg
- · Replies 4 ·
Graduate Negative energy/imaginary momentum
- wofsy
- · Replies 25 ·
Graduate Magnetic flux quanta in ground state hydrogen
- nuby
- · Replies 1 ·
Graduate Is Quantum Physics All About Total Randomness?
- Curious6
- · Replies 10 ·
Graduate How do you determine that a particle is/was entangled?
- Untangled
- · Replies 58 ·
Graduate Shrodinger Equation, where did it come from?
- Nick89
- · Replies 4 ·
Graduate Does Schrödinger's equation work with extra spatial dimensions?
- mrlaughingman
- · Replies 16 ·
Graduate Partial Measurement / Teleportation
- msumm21
- · Replies 2 ·
Graduate Is a photon's wavelength relative to the velocity of its source?
- nuby
- · Replies 16 ·
Graduate What is the purpose of trace in quantum mechanics?
- Peeter
- · Replies 5 ·
Graduate Can Quantum Mechanics Explain Particle Behavior in Video Games?
- IkonOne
- · Replies 14 ·
Graduate Interference seen in a member of an entangled pair
- msumm21
- · Replies 61 ·
Graduate What is the Interpretation of the Inverse Property of a Delta Function in QM?
- Peeter
- · Replies 2 ·
Graduate About distinguishable and indistinguishable
- KFC
- · Replies 1 ·
Undergrad How Do Electrons Behave Within an Atom?
- johndb
- · Replies 6 ·
Graduate Factor of 3 discrepancy in Maggiore's QFT equation 52
- PJK
- · Replies 1 ·
Graduate How is cosine squared used in measuring particle properties?
- thenewmans
- · Replies 9 ·
Graduate Experiment involving photoelectric effect
- math_04
- · Replies 8 ·
Undergrad How Does a Half-Silvered Lens Affect the Young's Two Slit Experiment?
- Carid
- · Replies 4 ·
Graduate Understanding Mixed vs Pure States in Quantum Mechanics
- msumm21
- · Replies 10 ·
Undergrad Simple double slit question
- Fiziqs
- · Replies 9 ·
Graduate Does the double slit experiment's detector interfere with electrons?
- nickylaatz
- · Replies 38 ·
Graduate Wavelength or amplitude < a Planick length?
- labrat3004
- · Replies 16 ·
Graduate 2-slit experiment for electron
- markoX
- · Replies 2 ·
Graduate Completeness of Quantum Mechanics
- mn4j
- · Replies 25 ·
Graduate Matrix representing projection operators
- SouthQuantum
- · Replies 3 ·
Graduate Are force carrier particles instantaneous like gravity in relativity?
- cam875
- · Replies 1 ·
Graduate Why does the system has lower energy if its wave function is symmetric?
- xfshi2000
- · Replies 3 ·
Undergrad Photoelectric Effect - Electrons
- Chewy0087
- · Replies 14 ·
Graduate Hydrogen atom ground state with zero orbital angular moment question.
- xfshi2000
- · Replies 3 ·
Graduate How Does a Smaller Wavelength Photon Resolve Smaller Distances?
- ledamage
- · Replies 1 ·
Graduate Angular frequency of a matter patter
- redtree
- · Replies 2 ·
Graduate Delayed Choice Quantum Erasers
- Jarwulf
- · Replies 6 ·
Graduate Researching Neutron Imaging: Is Imaging a Single Molecule Possible?
- CPL.Luke
- · Replies 3 ·
Graduate Outer product problem of derac notation
- hasanhabibul
- · Replies 7 ·
Graduate How do we measure momentum of a single free particle in quantum mechanics?
- xboy
- · Replies 14 ·
Graduate Feynman rules for vector bosons
- wangjiaji
- · Replies 3 ·
Graduate Does observer probability collapse instead of particle wave collapse?
- Fiziqs
- · Replies 7 ·
Graduate Quantum Computation: 2 Interesting Qs
- cam875
- · Replies 8 ·
Graduate How to deal with index in the problem of thermal field?
- KFC
- · Replies 4 ·
Graduate Req: A conceptual QFT example
- pellman
- · Replies 4 ·
Graduate Linear potential solution using exponential ansatz
- pellman
- · Replies 9 ·
Graduate Why is Rayleigh scattering stronger than Raman scattering if Raman has more final states?
- wdlang
- · Replies 3 ·
Graduate Quantum randomness vs. dice randomness
- ivan
- · Replies 42 ·
Undergrad What is the relationship between electron movement and rest mass?
- adoado
- · Replies 2 ·
Graduate Degenerate time indep. perturbation theory
- ice109
- · Replies 3 ·
Graduate Do spinor boosts have a simple form like rotations in QFT?
- mahdiarnt@yahoo.com
- · Replies 1 ·
Graduate What Are the Implications of Non-Local Entanglement in Quantum Mechanics?
- Chrisc
- · Replies 26 ·
Graduate Could the LHC detect a fourth spatial dimension?
- Pjpic
- · Replies 2 ·
Undergrad Atomic Decay: Charged Element After Alpha Helium Release?
- WARLORDTF
- · Replies 2 ·
Graduate West vs East: Converting Results
- RedX
- · Replies 1 ·
Graduate Probability Distribution for Time of Measurement?
- dx
- · Replies 4 ·
Graduate Why insert a complete basis into commutator expressions in linear response theory
- jbb
- · Replies 1 ·
Graduate Basic-Questions about Quantum terms
- Anglea
- · Replies 9 ·
Graduate Understanding Binding Energy: The Hidden Mass Conversion Process
- weltza
- · Replies 4 ·
Graduate Zero point energy of hydrogen atom
- feynmann
- · Replies 17 ·
Graduate Is Quantum Mechanics Non-Local or Can Local Models Explain the Universe?
- The Dagda
- · Replies 125 ·