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
Undergrad Instrumentalism and consistency
- Demystifier
- · Replies 77 ·
High School A question about Bell's Inequality and hidden variables
- rede96
- · Replies 66 ·
Undergrad Explaining quantum entanglement
- davidge
- · Replies 7 ·
Undergrad Expectation value of energy in TISE
- yosimba2000
- · Replies 3 ·
Undergrad Double slit interference: moving waves
- PiotrDab
- · Replies 1 ·
Graduate Quantum measurement with incomplete basis?
- jarekduda
- · Replies 2 ·
Undergrad 3 polarizers -- correlations of correlations
- Leo1233783
- · Replies 2 ·
Undergrad The uncertainty principle and moving reference frames
- Daniel Gallimore
- · Replies 12 ·
High School Why is there no proton degeneracy pressure?
- Pedro de la Torre
- · Replies 4 ·
Graduate Infrared Divergences in QED Revisited
- David Neves
- · Replies 1 ·
Graduate Is Quantum Chaos Random or Deterministic?
- Crass_Oscillator
- · Replies 23 ·
Undergrad Confusion with the Photoelectric Experiment
- Fruit Water
- · Replies 6 ·
Undergrad Has Quantum Mechanics Solved the Measurement Problem?
- entropy1
- · Replies 8 ·
High School Hawking believes "God confuses us throwing dice....", why?
- Mario Rossi
- · Replies 103 ·
Undergrad Light amplification with open-ended laser tube
- Erik Ayer
- · Replies 2 ·
High School Superconductivity & Quantum Emergence
- star apple
- · Replies 3 ·
High School Schrödinger Equation for the fusion of Deuterium(2H) and a Proton(H)
- Viridun
- · Replies 4 ·
High School Superposition or just unobserved states?
- davezap
- · Replies 10 ·
Undergrad Terms canceling out in unitarily evolving state
- Swamp Thing
- · Replies 5 ·
High School Learning Gravity: Gravitons nor mass of a particle
- sirios
- · Replies 13 ·
High School What caused the asymmetry between matter and antimatter in the early universe?
- calinvass
- · Replies 6 ·
Undergrad What is Meant by Measured in the Context of Electron Position?
- Ken Ucarp
- · Replies 20 ·
High School A programmer's point of view of 2 quantum physics principles
- anothergol
- · Replies 3 ·
High School Electromagnetic fields of fundamental particles -- help please
- sirios
- · Replies 6 ·
Undergrad Confusion about Dirac Notation (interferometer)
- Edge Of Pain
- · Replies 1 ·
Undergrad Classical vs quantum wave amplitudes?
- LarryS
- · Replies 6 ·
Undergrad Question: Quantum Dot Laser - Energy Band
- ulver48
- · Replies 2 ·
High School Can clocks explain the probability of finding a particle in motion?
- Derek M
- · Replies 4 ·
High School Some questions about "superdeterminism" and Bell's Theorem
- penguin_surprise
- · Replies 75 ·
Undergrad Binding energy in QM and in GR
- zonde
- · Replies 7 ·
High School Non-deterministic Hidden variables that can't be described by math
- Blue Scallop
- · Replies 3 ·
High School Poor man's double slit etc. setup
- Blue Scallop
- · Replies 36 ·
Undergrad So, do vacuum fluctuations exist?
- davidge
- · Replies 3 ·
Undergrad Wave function measurement question
- Kevlwig
- · Replies 2 ·
Undergrad How are degrees of freedom understood in QM?
- Posy McPostface
- · Replies 3 ·
Undergrad Fourier conjugates and momentum
- redtree
- · Replies 45 ·
Undergrad Can Spin State Recombination Restore the Original Quantum State?
- Mentz114
- · Replies 4 ·
Undergrad Why does intensity mean anything if there's a complex number
- yosimba2000
- · Replies 8 ·
Undergrad Countable or Uncountable Cardinality of Multiverse?
- FallenApple
- · Replies 4 ·
Undergrad Can we operate with several operators at once on a state?
- Tio Barnabe
- · Replies 1 ·
High School Quantum entanglement and potential wells
- satyesu
- · Replies 5 ·
High School Is there a tension between QM and QFT?
- ftr
- · Replies 9 ·
Undergrad Does the Compton Effect Challenge the Particle Nature of Light?
- Sudarsan
- · Replies 7 ·
Undergrad Difference between CHSH and Bell inequalities
- harpo
- · Replies 5 ·
High School Can you detect stationary bosons?
- itoero
- · Replies 3 ·
Undergrad When does superposition collapse or entanglement take place
- Trollfaz
- · Replies 3 ·
Undergrad Calculating Helicity in Non-Relativistic Quantum Mechanics using Pauli Matrices
- Tio Barnabe
- · Replies 3 ·
High School Superposition particles in a box
- Dillon B
- · Replies 7 ·
High School Wave function deterministic yet not classical
- Blue Scallop
- · Replies 12 ·
High School Black hole information paradox and determinism
- Atla2017
- · Replies 12 ·
Undergrad Can Bound States Leak and How Do Scattering States Behave?
- WWCY
- · Replies 3 ·
Undergrad Questions Regarding Free Particles - Griffith's QM (I)
- WWCY
- · Replies 10 ·
Undergrad Spin 1/2 representation of a particle
- Tio Barnabe
- · Replies 8 ·
Undergrad Deriving the equations of QM/QFT
- Tio Barnabe
- · Replies 21 ·
Undergrad Calculating Relativistic Phase and Group Velocity
- jstrunk
- · Replies 10 ·
High School Understanding Excitation Energy in Atoms: Threshold Values and Potential States
- Bennet
- · Replies 3 ·
Graduate The Lagrangian Density and Equations of Motion
- bleist88
- · Replies 3 ·
Undergrad Two slit experiment w baseballs
- Ronmarc
- · Replies 5 ·
High School Psi-ontic view, macro objects and decoherence
- PuzzledR
- · Replies 38 ·
High School How Does Detector Placement Affect Ratios in the Double Slit Experiment?
- calinvass
- · Replies 6 ·
Undergrad Exact value for every observable in QM?
- asimov42
- · Replies 4 ·
Undergrad Concerning concioussnes and the double slit experiment.
- bobos1997
- · Replies 2 ·
High School Some very basic questions around the double slit experiment
- rede96
- · Replies 14 ·
Undergrad (Apparent?) paradoxes - Classical/Quantum theory predictions
- davidge
- · Replies 18 ·
Undergrad How do you understand EPR & Bell's Theorem?
- Blue Scallop
- · Replies 47 ·
Undergrad How to study a particle with several features?
- Tio Barnabe
- · Replies 8 ·
Undergrad Does QFT explain macroscopic objects?
- Peter Perfect
- · Replies 1 ·
High School Entangled Photon Measurements: A(t) = d/c and B(t) = 5d/c
- Point Conception
- · Replies 3 ·
Undergrad Why do electrons behave as classical particles when they are far apart?
- Tio Barnabe
- · Replies 7 ·
Graduate Bound states and the energy-momentum relation....
- asimov42
- · Replies 20 ·
Undergrad Is a Quantum-Controlled Mirror Possible?
- Erik Ayer
- · Replies 2 ·
Graduate Virtual Fermions and Pauli Principle
- Marrrrrrr
- · Replies 2 ·
High School How is Bohr's atom model convenient with quantum mechanics?
- Karagoz
- · Replies 3 ·
High School Conditions for paired electrons
- Konstantinos Michos
- · Replies 1 ·
Graduate Observable particles as asymptotic states....
- asimov42
- · Replies 47 ·
Undergrad Hamiltonian after transformation to interaction picture
- lutherblissett
- · Replies 2 ·
Undergrad Does QM allow for a photon to travel at 800,000 km/s?
- gamow99
- · Replies 8 ·
Undergrad Is Hawking Radiation unique? (And one more question)
- Tio Barnabe
- · Replies 3 ·
Graduate Can zero dimensional QFT be real?
- friend
- · Replies 9 ·
Undergrad Entanglement-questions photons
- itoero
- · Replies 1 ·
High School Exciting an H-Atom: Effects on Kinetic Energy
- rahaverhma
- · Replies 1 ·
Undergrad Quantum Tunneling Max Distance
- name123
- · Replies 29 ·
Undergrad Hilbert space in Everettian QM
- Posy McPostface
- · Replies 18 ·
High School Why did Max Planck assume discrete energy values?
- Mikeal
- · Replies 22 ·
Undergrad Why is Quantum Gravity theory still not "finished"?
- Tio Barnabe
- · Replies 44 ·
Undergrad "Observer Effect" referring to two different things?
- Gerinski
- · Replies 39 ·
Graduate Can entanglement swapping determine the absolute velocity of an object?
- Mal Cevalo
- · Replies 15 ·
High School Collision of photon and proton
- sanpokhrel
- · Replies 4 ·
Undergrad Double slits seen from the plane
- TMV
- · Replies 2 ·
High School So Quantum Fluctuations don't exist?
- Tio Barnabe
- · Replies 54 ·
High School Is the Momentum Explanation in Marcella's Paper Consensus Among Physicists?
- fanieh
- · Replies 26 ·
Undergrad Help with an expectation value formula
- Agrippa
- · Replies 12 ·
Graduate Interference in electron conductance through e.g. molecule?
- jarekduda
- · Replies 1 ·
Undergrad Quantum Collapse: Understanding The Mystery
- john t
- · Replies 8 ·
High School Energy absorbed by an electron
- sanpokhrel
- · Replies 9 ·
Undergrad Is there a simplified spin-orbit coupling equation?
- HAYAO
- · Replies 2 ·
Undergrad Is the Hamilton-Jacobi Formalism a Classical Analogue to Quantum Wave Functions?
- fanieh
- · Replies 62 ·
Undergrad TIR (total internal reflection) in terms of quantum world
- Pritamstar
- · Replies 3 ·
High School Particle pair creation probability
- calinvass
- · Replies 1 ·
Undergrad Why the velocity operator commutes with position (Dirac equation)
- zhouhao
- · Replies 1 ·