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 Is the Bohr model of the atom still valid in quantum mechanics?
- mendocino
- · Replies 43 ·
Graduate [Quick] States of interacting and non-interacting Hamiltonian
- QuantumDevil
- · Replies 5 ·
Graduate Need Understandable Explanation Of Bell's Theorum
- adrenaline
- · Replies 56 ·
Graduate Interaction term in path integral
- QuantumDevil
- · Replies 8 ·
Graduate Can Photons Really Pop In and Out of Existence?
- Cluelessluke
- · Replies 1 ·
Graduate What does 'wave' mean in wavefunctions and de Broglie wavelength?
- kcodon
- · Replies 10 ·
Graduate How do photons have wavelength if light is particle-like?
- Mr Virtual
- · Replies 43 ·
Graduate What is the difference between entangled and normal photons?
- Richard J
- · Replies 23 ·
Undergrad Inelastic collision and ideal gas law
- i_island0
- · Replies 1 ·
Graduate In an experiment, do we measure the eigenvalue or expectation value?
- touqra
- · Replies 4 ·
Graduate Renormalization, infinitesimal charges?
- jostpuur
- · Replies 2 ·
Graduate Quantum fields are the basic constituents?
- pellman
- · Replies 16 ·
Graduate Chern Simons Spin density as hidden variable.
- Hans de Vries
- · Replies 21 ·
Graduate Does zero-point energy relate to quantum foam?
- Spellbound
- · Replies 5 ·
Graduate Entanglement Effects in Relativistic Reference Frames
- peter0302
- · Replies 23 ·
Graduate Getting Into Quantum Physics: Is It Difficult?
- Liger20
- · Replies 4 ·
Photons at same place at the same time
- bassplayer142
- · Replies 8 ·
Graduate A paradox about Heisneberg Uncertainty ?
- Klaus_Hoffmann
- · Replies 48 ·
Graduate Uncertainty: Measuring Electron Position w/o Light
- cosmic.ash
- · Replies 3 ·
Graduate Non Commutative Quantum Field Theory
- fizix-
- · Replies 3 ·
Graduate Questions on Line Spectra, Orbitals and Radiation
- Stereo_Chemist
- · Replies 4 ·
Undergrad The Photoelectric Effect question
- jumbogala
- · Replies 64 ·
Graduate Symmetries and conserved quantities
- plmokn2
- · Replies 6 ·
Graduate I won't debate on the wavefunction collapse
- lalbatros
- · Replies 132 ·
Graduate Weinberg Paper: Understanding Two Loop Corrections for Gravitational Force
- romeo6
- · Replies 2 ·
Graduate How we interpret quantum physics
- PlasmaSphere
- · Replies 24 ·
Graduate Probability current versus electric current
- BeauGeste
- · Replies 6 ·
Graduate What is the energy loss of a solid sphere hitting a wall obliquely?
- physmurf
- · Replies 2 ·
Undergrad What are some recommended introductory books on quantum mechanics?
- Fizzicist
- · Replies 1 ·
Undergrad Black lines in elements' emission spectra
- Intimidat0r
- · Replies 1 ·
Graduate Visualizations of spin observables Sx, Sy, Sz and their relationships
- TimH
- · Replies 14 ·
Graduate What are the fundamental mathematics behind path integrals in QM?
- pivoxa15
- · Replies 1 ·
Graduate What Is the Significance of the Fine Structure Constant 1/137?
- Himanshu
- · Replies 3 ·
Graduate What are generalized probability functions?
- TimH
- · Replies 15 ·
Graduate Is the Screen an Observer in the Double Slit Experiment?
- johny_g
- · Replies 2 ·
Graduate Distinguishability of electrons separated by large distances
- Alien
- · Replies 2 ·
Graduate Why are eigenstates symmetric or antisymmetric for symmetric potentials?
- MJC3Jh
- · Replies 6 ·
Graduate Recursion relation for C-G coefficients
- Alien
- · Replies 3 ·
Undergrad What is a good introductory book for quantum physics?
- cfalcon
- · Replies 2 ·
Graduate Energy levels in quantum well structures
- starla
- · Replies 1 ·
Graduate What Is the Fine Structure Constant in Physics?
- Luidge
- · Replies 5 ·
Graduate Decay length of Half Square Well
- MitsuZero
- · Replies 1 ·
Graduate Is Quantum Physics an Epistemology or an Ontology?
- Alwinder
- · Replies 9 ·
Graduate Does de Sitter General Relativity Offer a New Approach to Quantum Gravity?
- Uncle Al
- · Replies 5 ·
Graduate Do Electrons Orbit the Nucleus Like Planets?
- ΔxΔp≥ћ/2
- · Replies 58 ·
Graduate Confirming the Correlation of Quantum States and Lowest Quantum Numbers
- lion8172
- · Replies 1 ·
Graduate Why Should We Revisit Quantum Mechanics and General Relativity?
- physillator
- · Replies 2 ·
Graduate Time Elapsed Through Earth's Tunnel: Clock Drop Experiment
- Count Iblis
- · Replies 3 ·
Can Comedy Simplify Quantum Physics?
- kach22i
- · Replies 1 ·
Graduate Quantum number and wave vector
- ewilibrium
- · Replies 4 ·
Graduate Raising and lowering operators for spin
- lion8172
- · Replies 3 ·
Graduate Do selection rules for electric dipole transitions constrain n changes?
- neelakash
- · Replies 1 ·
Graduate An irreducible representation of
- Coin
- · Replies 4 ·
Graduate Momentum Eigenstates in 1D Infinite Square Well
- Andy_ToK
- · Replies 3 ·
High School Do electrons spin or orbit around the nucleus?
- Brock
- · Replies 17 ·
Graduate Quantum Mechanics and Relativity.
- dromero
- · Replies 2 ·
Graduate What Does "Size" Mean for Electrons and Protons?
- Dale
- · Replies 12 ·
Graduate Numerical calculation of tunneling probability
- chandanrupa
- · Replies 1 ·
Graduate Does Natural Hydrogen Exist in a Stable Ground State?
- cornfall
- · Replies 6 ·
Graduate What does this state collapse into after the measurement?
- wdlang
- · Replies 2 ·
Graduate Has FTL communication really never been tested in this way?
- PostReplies
- · Replies 39 ·
Graduate How Does Angular Dependence Arise in a Spherical Symmetric Potential?
- touqra
- · Replies 2 ·
Graduate Logical Rational for spooky-action @ at distance
- candymarie
- · Replies 1 ·
Undergrad Electronic structure of the atoms
- Sean Torrebadel
- · Replies 5 ·
Graduate Organizing a high school quantum mechanics research paper
- Nakalay
- · Replies 6 ·
Graduate Understanding Bell's Inequality & Theorem
- pibomb
- · Replies 5 ·
Graduate One Photon from coil and battery
- wawens
- · Replies 8 ·
Graduate Exchange of photons/virtual photons and electrostatic or EM force
- Labyrinth
- · Replies 19 ·
Graduate Why does a wave equation predict wavefunction evolution in quantum mechanics?
- neelakash
- · Replies 4 ·
Graduate Compton Scattering from bound electrons
- neelakash
- · Replies 1 ·
Graduate Massive boson propagator - problem with step in derivation
- Ben1729
- · Replies 4 ·
Graduate Periodic Potential: Diff. Eq. Solutions
- jostpuur
- · Replies 6 ·
Graduate How Are the Failures of Equipartition Theory Linked to Quantum Mechanics?
- neelakash
- · Replies 4 ·
Graduate Neutrinos going through neuclei?
- David_777
- · Replies 2 ·
Graduate Is the Many Minds Interpretation of Quantum Mechanics Widely Accepted?
- Anonymous Scrub
- · Replies 7 ·
Graduate Finding <Lx²> + <Ly²> for particle in state with l=3, m=+2
- hellosir
- · Replies 1 ·
Graduate Why Does the First Order Term in QED Scattering Matrix Give No Contribution?
- QuantumDevil
- · Replies 3 ·
Graduate Can a Quantum Computer Solve NP-Hard Problems in Infinite Parallel Computing?
- wawens
- · Replies 4 ·
Graduate Integrating over all possible fields
- quantumfireball
- · Replies 4 ·
Graduate The dimension of the fine structure constant
- Koilon
- · Replies 9 ·
Graduate Which QM formalism is the most useful for understanding research papers?
- ice109
- · Replies 7 ·
Graduate How Instantaneous is Quantum Entanglement?
- idea2000
- · Replies 1 ·
Graduate Fermion contraction notation and spinor indices in Peskin & Schroeder
- jostpuur
- · Replies 5 ·
Undergrad Teleportation & EPR: Learn Basics & Get Readings on Paradox
- shomey
- · Replies 3 ·
Graduate Why does Lorentz Force law work?
- Brock
- · Replies 9 ·
Graduate Does Compton Effect Formula Follow Original Derivation?
- cscott
- · Replies 3 ·
Graduate Do all light interference effects come from photon self-interaction?
- Hernik
- · Replies 4 ·
Graduate Density matrix off diagonal terms - what do they mean?
- pellman
- · Replies 2 ·
Graduate Can I Predict the Lottery Draw Without Affecting the Universe's Wavefunction?
- Count Iblis
- · Replies 4 ·
Graduate Can You Generate Feynman Diagrams for Specific Perturbation Orders?
- iamquantized
- · Replies 1 ·
Graduate Do virtual particles in the vacuum produce gravitational effects?
- Art
- · Replies 8 ·
Bizarre theory-Could there be any truth in this?
- Liger20
- · Replies 6 ·
Graduate Matrix of angular momentum operator
- TURK
- · Replies 4 ·
Graduate Can measuring certain operators in a quantum system have deadly consequences?
- Count Iblis
- · Replies 1 ·
Graduate Why don't 850 MHz cell phone waves ionize atoms?
- Andronicus1717
- · Replies 10 ·
Graduate How does a fixed permutation operator commute with antisymmetric sums?
- cks
- · Replies 2 ·
Graduate Creating Electrons: A Question from Feyman
- quantumfireball
- · Replies 4 ·
Graduate What happens when we measure H_x in an infinit potential well?
- Lorna
- · Replies 2 ·
Graduate Does this soda can anti-gravity trick have any validity?
- MagikRevolver
- · Replies 3 ·
Undergrad Why do quantum computers still use bits instead of pure quantum states?
- plutoisacomet
- · Replies 6 ·