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 What is electron spin and intrinsic spin of elementary particles?
- anantchowdhary
- · Replies 14 ·
Graduate An electron's wave properties?
- jse7
- · Replies 9 ·
Graduate Producing EB Waves: Accelerating and Decelerating Particles
- jse7
- · Replies 1 ·
Graduate Calculation Showing M_mu_nu Representation of Lorentz Generators
- alphaone
- · Replies 3 ·
Graduate The role of wave function in QED
- Quantum River
- · Replies 67 ·
Graduate What's the difference between probability and probability density
- Newbie says Hi
- · Replies 5 ·
Undergrad Where Can I Find a Quality Online Intro to Quantum Mechanics?
- Ragnar
- · Replies 2 ·
Graduate What Role Do Calabi-Yau Spaces Play in String Theory?
- Chaos' lil bro Order
- · Replies 10 ·
Graduate Hi, can i know two phenomena related to quantum physics ?
- matt222
- · Replies 2 ·
Is a Quantum Computer Possible? A Critical Look at Recent Claims
- Thrice
- · Replies 2 ·
Graduate Why is a QM wave function not normalizable
- Ed Quanta
- · Replies 2 ·
Graduate Why does quantum mechanics not marry with the theroy of relativity
- Schrodinger's Dog
- · Replies 21 ·
Undergrad Schrödinger's cat paradox explaination
- ARR0624
- · Replies 7 ·
Graduate Basic - Trying to understand a probability wave
- FrogPad
- · Replies 1 ·
Undergrad Is there a Limit to How Cold Matter Can Get?
- JPC
- · Replies 12 ·
Graduate Canonical Bose-Einstein statistics
- quetzalcoatl9
- · Replies 3 ·
Graduate Gravitational Effects of Wave-Particle Duality in C60 Molecules
- Q_Goest
- · Replies 15 ·
Graduate The Size of Photons: Experiments and Results
- bassplayer142
- · Replies 3 ·
Graduate Theory of interactions, theory of collisions?
- jostpuur
- · Replies 1 ·
Graduate Can Quantum Mechanics Explain the Moon's Potential to Jump Locations?
- Gza
- · Replies 3 ·
Graduate Hydrogen Degeneracy: Qualitative Explanation
- Allday
- · Replies 4 ·
Graduate Probability expectations -> measurement outcomes
- Loren Booda
- · Replies 9 ·
Graduate Deriving e^(-iAx) = cos(x)I + isin(x)A for Pauli matrices
- ArjSiv
- · Replies 2 ·
Graduate Angular momentum coupling - worked out examples?
- Urvabara
- · Replies 5 ·
Graduate Jumping between quantized values
- coolnessitself
- · Replies 4 ·
Graduate Is Renormalisation Unique for Physically Measurable Quantities?
- Sunset
- · Replies 37 ·
Graduate Commutators, Lie groups, and quantum systems
- Einstein Mcfly
- · Replies 5 ·
Graduate Can the Potential Energy of an Electron in a Hydrogen Atom be Measured?
- batsan
- · Replies 6 ·
Undergrad C = 299 792 458 m/s and uncertainty
- DonnieD
- · Replies 3 ·
Graduate Problem understanding particle/wave duality and quantum jump
- moe darklight
- · Replies 3 ·
Graduate Photon absorption by an accelerated atom
- Leo.Ki
- · Replies 2 ·
Graduate Particle-Wave duality and Hamilton-Jacobi equation
- Quantum River
- · Replies 75 ·
Graduate What is physical meaning of anticommuting, not anticommuting operators
- Roman
- · Replies 4 ·
Graduate Is information a reduction of energy in quantum uncertainty relations?
- khtur
- · Replies 14 ·
Graduate S-matrix poles as bound states in quantum physics
- touqra
- · Replies 1 ·
Graduate Why are momentum, energy and angular momentum quantized in quantum mechanics?
- xboy
- · Replies 10 ·
Graduate Why does the Pauli exclusion principle apply only to fermions?
- Tsunami
- · Replies 3 ·
Undergrad Photoelectric Effect contradiction
- arcnets
- · Replies 17 ·
Graduate Is Quantum Field the Fundamental Structure of the Universe?
- grahamc
- · Replies 1 ·
Graduate Accuracy of Black Hole Radiation Equation on Wikipedia
- kuahji
- · Replies 1 ·
Undergrad What atomic structure determines transparency and photon emission frequency?
- JPC
- · Replies 6 ·
High School Why does Planck's constant have the value 6.63×10−34?
- Pagey
- · Replies 1 ·
Who Were the Nobel Laureates Captured in the 5th Solvay Conference Footage?
- Dorimant
- · Replies 3 ·
Graduate What does temperature mean in a quantum system?
- Quantum River
- · Replies 2 ·
Graduate How is energy defined in quantum mechanics?
- xboy
- · Replies 6 ·
Graduate What Are Anyons and How Do They Fit Into Particle Types?
- Kevin_spencer2
- · Replies 3 ·
Graduate Storing an Image with a Single Photon: Quantum Mechanics at Work
- DaveC426913
- · Replies 3 ·
Graduate Perturbation theory and Path integrals.
- Kevin_spencer2
- · Replies 1 ·
High School Is Wave Particle Duality Relevant to Everyday Objects Like Baseballs?
- ArielGenesis
- · Replies 7 ·
Graduate The logic of Quantum Mechanics
- Mike2
- · Replies 2 ·
High School How Can You Start Learning Quantum Physics Before A-Levels?
- Trail_Builder
- · Replies 10 ·
Undergrad Learning quantum mechanics with a math-focused approach
- adamimos
- · Replies 10 ·
Graduate Measuring gravity with quantum mechanics using lead
- sanman
- · Replies 3 ·
Graduate Using photons to detect electrons and vice versa
- AnssiH
- · Replies 6 ·
Graduate Does the Wavefunction Propagate at Finite Speed or Instantaneously?
- Loren Booda
- · Replies 9 ·
Graduate Are so-called non-local interactions really non-local?
- MeJennifer
- · Replies 3 ·
Graduate Statistical Mixture of N States in the Hartree-method.
- Jezuz
- · Replies 6 ·
Graduate Review of Local Hidden Variable Theories
- DrChinese
- · Replies 1 ·
Graduate Quantum probability versus entropy
- Tsunami
- · Replies 7 ·
Graduate What causes photon parts to behave similarly when split and reform?
- RayDartist
- · Replies 11 ·
Undergrad Frequency or wavelength of a photon
- touqra
- · Replies 35 ·
Graduate Why does the complex phase matter if probability stays the same?
- daniel_i_l
- · Replies 4 ·
Graduate Ideal diode equation and nonlinear behavior under reverse bias
- impendingChaos
- · Replies 3 ·
Graduate Ultraviolet Catastrophe / Rayleigh-Jeans Black Body Cavity
- mrjeffy321
- · Replies 3 ·
Graduate Where are the missing de-broglie waves?
- AlienUFO
- · Replies 4 ·
Graduate Electron orbits, QM, Exclusion Principle and location
- eehiram
- · Replies 4 ·
Graduate Role of phase in quantum measurement
- FlyInDance
- · Replies 2 ·
Graduate Probability of quantum tunnelling
- eehiram
- · Replies 4 ·
Graduate What is the New Twist on Double Slit Double Slit?
- dtfroedge
- · Replies 12 ·
Graduate Schroedinger's cat: half-alive and half-dead
- eehiram
- · Replies 49 ·
Graduate What's the best book/website on the Dirac equation?
- jrrship
- · Replies 3 ·
Graduate Kerr Pre-Measurement vs Bell's Inequality
- sanman
- · Replies 26 ·
Graduate Quarter wave plate effect on EPR polarization entanglement
- RandallB
- · Replies 1 ·
Undergrad Who was there to observe the early universe?
- eehiram
- · Replies 17 ·
Graduate What happen when photon passing through highly charged field?
- AlienUFO
- · Replies 13 ·
Graduate Do changing magnetic fields explain the electric fields of subatomic particles?
- kmarinas86
- · Replies 1 ·
Graduate Understanding Light: Wave to Particle
- FunkyDwarf
- · Replies 6 ·
Graduate Why do we need a quantum theory of gravity? What would it do?
- chaoseverlasting
- · Replies 12 ·
Graduate Why quantum mechanics predicts ensembles better than single particles
- lemma28
- · Replies 5 ·
Undergrad What Does the deBroglie Wave Represent in Quantum Mechanics?
- nebuqalia
- · Replies 19 ·
Graduate How do fermions know which quantum states are occupied?
- colegu
- · Replies 14 ·
Graduate Schrodinger eqn. and its relativistic generalisations
- masudr
- · Replies 5 ·
Graduate Hey guys I have an interesting topic for all of you who interested
- drphysica
- · Replies 41 ·
Graduate Can Antimatter Really Travel Back in Time According to Feynman's Theory?
- Schrodinger's Dog
- · Replies 5 ·
Graduate What is spin? (advanced question)
- pellman
- · Replies 3 ·
Graduate Dirac Postulate: Understanding Measurement in Quantum Mechanics
- mlukowski
- · Replies 7 ·
Graduate Can expectation values be defined for non-Hermitian operators?
- lemma28
- · Replies 3 ·
Graduate Slit Experiment vs Schrodinger's Cat
- sanman
- · Replies 4 ·
Graduate Physical interpretation of imaginary parts in spherical harmonics
- repugno
- · Replies 4 ·
Graduate Unification makes me wonder what things we would actually understand
- MajorComplex
- · Replies 7 ·
Graduate What is the Role of the Dynamic Quantum Vacuum in Quantum Mechanics?
- sanman
- · Replies 3 ·
Graduate Postulates of Quantum Mechanics
- Virtual R
- · Replies 6 ·
Graduate What is the relationship between atomic clocks and particle waves?
- Flux
- · Replies 5 ·
Graduate Can John Cramer's Experiment Really Demonstrate Retrocausality?
- Lelan Thara
- · Replies 22 ·
Graduate 4 the question related to double slit experimetn
- drphysica
- · Replies 1 ·
Graduate Can a hydrogen atom be modeled as an LC circuit?
- waht
- · Replies 3 ·
Undergrad Speed of light and quantum question?
- smileandbehappy
- · Replies 2 ·
Graduate Has quantum mechanics changed since the big bang?
- Loren Booda
- · Replies 19 ·
Graduate Angular momentum and azimuthal angle commutation on periodic domains
- dextercioby
- · Replies 24 ·
Undergrad I this formula is true according to Heisenberg uncertainty principle
- az2212
- · Replies 1 ·