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 Bose-Einstein statistics for μ>ε
- LightPhoton
- · Replies 1 ·
Undergrad More double slit experiment questions
- jackjack2025
- · Replies 4 ·
Undergrad Matrix element involving raising/lowering operators
- Malamala
- · Replies 10 ·
High School Has a Double Slit Experiment Been Conducted in a Vacuum Tube?
- dave1223
- · Replies 18 ·
Undergrad Matrix element of raising/lowering operators in diatomic molecule
- Malamala
- · Replies 1 ·
Undergrad Position operator explicit form
- cianfa72
- · Replies 9 ·
Undergrad Commutation of position operators in three dimensions
- hokhani
- · Replies 14 ·
Undergrad Qubit two-state quantum system
- cianfa72
- · Replies 29 ·
Undergrad Why not adjust path length by moving detector in interferometer
- desertshaman
- · Replies 5 ·
Undergrad Can Topological Protection Extend the Lifetime of a Qubit?
- Emrissa
- · Replies 6 ·
Undergrad Relation between operators and their variables' signs
- hokhani
- · Replies 13 ·
High School Can a filter based on the photoelectric effect reduce the noise floor?
- danielhaish
- · Replies 8 ·
Undergrad Incomprehension of a simple interferometer?
- desertshaman
- · Replies 17 ·
Undergrad Double-dark Slit Interference Pattern?
- Quarker
- · Replies 15 ·
Undergrad What kind of integration is Berezin integration?
- pines-demon
- · Replies 7 ·
High School The Story of Least Action and the Double Slit
- jedishrfu
- · Replies 19 ·
Undergrad Why do particles show interference in the double slit experiment?
- jackjack2025
- · Replies 65 ·
Undergrad Goldstone theorem proof: why the massless state case is special
- pines-demon
- · Replies 4 ·
Undergrad Can creation operators act to the left on bra states?
- MaestroBach
- · Replies 1 ·
High School Are the electron and neutrino that are emitted in a beta decay entangled?
- rjhoward12447
- · Replies 4 ·
Undergrad Homemade double slit experiment
- desertshaman
- · Replies 11 ·
Undergrad Have You Heard of the SEW Experiment? Thoughts?
- ChadGPT
- · Replies 3 ·
Graduate Does x affect the value of [a^2,(a^†)^2×e^2ikx]
- Sciencemaster
- · Replies 2 ·
Undergrad Units analysis for this phase shift problem using a differential equation
- jhonconnor
- · Replies 3 ·
Undergrad Clarifying the Superposition Principle
- MatinSAR
- · Replies 8 ·
Undergrad The physical components in the electron double slit experiment
- jacobbry
- · Replies 7 ·
High School How does light have energy to follow infinite paths?
- oknow
- · Replies 6 ·
High School The arrow of time (again)
- TheHutch
- · Replies 18 ·
High School Double slit experiment with detector 1 light minute away
- PhysicsIsReallyFun
- · Replies 20 ·
High School Probability function for the position of a static electron under no potential
- Arend
- · Replies 9 ·
High School Photoelectric phenomenum can only be proved as a particle effect?
- Arend
- · Replies 5 ·
Undergrad Femto-photography Michelson Morley Interferometer thought experiment
- Spinnor
- · Replies 2 ·
High School Would Laplace's Demon work?
- sayetsu
- · Replies 12 ·
Undergrad Quantum fields and "mediator" particles
- Rick16
- · Replies 7 ·
High School Why is gravity a weak force at the atomic scale?
- Arend
- · Replies 8 ·
Undergrad Entropic Tension Cosmology (ETC) 1.0
- Charles1
- · Replies 6 ·
Undergrad Questions on string theory and loop quantum gravity approaches
- SephQ
- · Replies 5 ·
Graduate When was the Rayleigh-Jeans law first formulated?
- matteoargos
- · Replies 3 ·
High School Quantum Field Theory As Simple As Possible
- bhobba
- · Replies 2 ·
Undergrad Far off resonant Rabi oscillations in a 2 level system
- Malamala
- · Replies 0 ·
Undergrad Different expressions about time reversal and confusion
- hokhani
- · Replies 2 ·
Undergrad Is the result of an operator acting on a ket vector always a ket？
- gaiussheh
- · Replies 16 ·
Undergrad Double Slit Experiment: Measurement versus Observation
- Praxiteles
- · Replies 3 ·
Undergrad Deriving the time-dependent wave equation from Energy eigenfunctions
- Dirac_Clarity_GOAT
- · Replies 1 ·
Undergrad How Much Pressure To Cause Matter To Degenerate?
- Hornbein
- · Replies 11 ·
Undergrad Particle in Infinite Square Well
- AgingStudent49
- · Replies 6 ·
Undergrad Justification of Superposition of Waves with Different Speeds
- greypilgrim
- · Replies 19 ·
Undergrad Particle in a potential well
- Malvina
- · Replies 11 ·
Undergrad Feynman's summing arrows for photon amplitudes applied to LIGO?
- Spinnor
- · Replies 5 ·
Undergrad Laws of thermodynamics and their application to quantum physics
- Priscilaifrj
- · Replies 2 ·
Undergrad Explanation of the Bohr postulates' existence
- Timothy S.
- · Replies 3 ·
Undergrad Can two photons combine to give a local field with spin 2?
- south
- · Replies 3 ·
Undergrad Physical Meaning of Atomic Oscillations
- Sciencemaster
- · Replies 11 ·
Graduate Pauli spin matrices
- Eliena
- · Replies 2 ·
Undergrad The Pauli-Lubanski vector and angular momentum
- redtree
- · Replies 19 ·
Undergrad Chunks of action smaller than Planck's constant
- gerald V
- · Replies 2 ·
Graduate Collapse of the electron wave function due to inelastic interactions
- Philip Koeck
- · Replies 8 ·
Undergrad Question regarding quantum mechanics from relativity perspective
- Cjorgensen
- · Replies 3 ·
Undergrad Normalisation Constant In Wavefunction
- laser1
- · Replies 8 ·
Graduate Has Hilbert transform ever been used in Quantum Theory?
- mad mathematician
- · Replies 3 ·
Undergrad What do the wave functions of real particles look like?
- AlbinoAlpacca
- · Replies 13 ·
Undergrad Uniqueness of quantum numbers
- ecurbian
- · Replies 3 ·
Undergrad Time dependent Schrödinger equation - Separable Solutions
- laser1
- · Replies 12 ·
Undergrad Is Newton the founder of quantum gravitation?
- south
- · Replies 5 ·
Undergrad Lower energy levels with Dirac/Pauli theory than Schroedinger theory?
- Juli
- · Replies 5 ·
Undergrad Amount of electrons in nuclei
- snorkack
- · Replies 10 ·
Undergrad System of bosons
- ananonanunes
- · Replies 2 ·
Undergrad Exchange symmetry of two particles on a sphere
- Siupa
- · Replies 1 ·
Undergrad The probability density of a wave function due to length contraction
- Wo Wala Moiz
- · Replies 20 ·
Undergrad 3 photon transfer probability
- Malamala
- · Replies 2 ·
Undergrad Motivating the form of a bra vector
- LightPhoton
- · Replies 2 ·
Undergrad How is superposition demonstrated?
- Halc
- · Replies 5 ·
Undergrad Physics Today article collection
- Frabjous
- · Replies 1 ·
High School Quantum wavelength of gravity
- south
- · Replies 11 ·
Graduate Questions about changing frame in QM and rotating wave approximation
- Malamala
- · Replies 3 ·
Graduate Classical interpretation of the Thomson experiment compared to the modern quantum perspective
- PaulinsteinAmarx
- · Replies 7 ·
Undergrad Quantum field in curved space-time
- Gary Venter
- · Replies 4 ·
High School Interference pattern inferencing
- roineust
- · Replies 8 ·
Undergrad Macroscopic object wave function
- fhenryco
- · Replies 5 ·
Undergrad Heisenberg Uncertainty Principle and macroscopic objects
- wnvl2
- · Replies 2 ·
Undergrad How does the electron keep its properties?
- JC_Silver
- · Replies 5 ·
Undergrad Understanding Randomness in Brownian Matter
- EntropicThinker
- · Replies 4 ·
Graduate CHSH Bell inequality derivation
- d_bar_x
- · Replies 4 ·
Graduate Born's probability in decoherence
- Sr1
- · Replies 3 ·
High School Sketching Psi as a function of x
- tsumugori
- · Replies 15 ·
Undergrad Famous 'Aspect Experiment' -- Which Type of Polarizers Were Used?
- d_bar_x
- · Replies 3 ·
Undergrad Influence of electron's kinetic energy disspation during photoelectric emission
- Timothy S.
- · Replies 3 ·
Undergrad 2-Slit: How do we know photon guns only produce single photons?
- julianb
- · Replies 33 ·
Graduate Order of Galilean Boost / Translation on a wave-function (or fields)
- binbagsss
- · Replies 9 ·
Graduate Vector Spaces Associated with Quark Modes in k-Space
- Hamracek21
- · Replies 0 ·
Undergrad Diffraction of point source/s and duality
- jk22
- · Replies 2 ·
High School Heisenberg uncertainty principle -- Questions about a practical experiment
- L Drago
- · Replies 34 ·
Undergrad Delayed quantum eraser: turning off sensor to bring back interference
- Herbascious J
- · Replies 24 ·
High School A homebrew quantum computer simulator
- Bob Walance
- · Replies 6 ·
Graduate Entropy increase in proton/proton collision?
- Twodogs
- · Replies 4 ·
Graduate Two-electron Lagrangian in QED
- Fefetltl
- · Replies 4 ·
High School Is space-time curvature a curvature of the Higgs field?
- C18
- · Replies 2 ·
Undergrad Relativity Considerations for Measurements on a Free Particle
- member 743765
- · Replies 1 ·
Undergrad How to derive momentum operator in position basis via its definition?
- LightPhoton
- · Replies 6 ·
Undergrad Why is the coupling factor constant in QFT?
- Haorong Wu
- · Replies 1 ·