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 Why is entanglement crucial for quantum computing?
- skanskan
- · Replies 10 ·
Undergrad Proof of some identities regarding spin angular momentum.
- Faisal Moshiur
- · Replies 2 ·
High School Energy in microwave cavity quantized?
- Spinnor
- · Replies 17 ·
Graduate On the equivalence of operator vs path integral in QFT
- ftr
- · Replies 15 ·
High School Does the Compton effect only occur at a specific angle of incidence?
- physics user1
- · Replies 2 ·
Undergrad Wu Experiment and Parity Violation
- MaxFieg
- · Replies 3 ·
High School What is the shortest wavelength of all? >0 or h?
- Daniel Petka
- · Replies 4 ·
Undergrad Products of operators : products of matrices
- dyn
- · Replies 5 ·
High School Entangled particles and lorentz contraction?
- letumio
- · Replies 10 ·
Graduate Why is deBroglie λ for electrons the same as λ for photons?
- Tommy R
- · Replies 3 ·
Undergrad Quantum Tunneling: Can it Cause Stable Systems To Transition?
- Trollfaz
- · Replies 1 ·
Undergrad Are continous Spectra actually discrete?
- Rohan Patil
- · Replies 5 ·
High School Understanding Forces and Fields in Classical and Quantum Interactions
- Blue Scallop
- · Replies 14 ·
Graduate Symmetrisation of wave function for fermions
- djelovin
- · Replies 2 ·
Undergrad Hamiltonian for spin-1/2 particle in B-field: units issue
- BrokenPhysics
- · Replies 5 ·
High School Is Classical EM Field the Same as Photon Wave Function?
- Blue Scallop
- · Replies 62 ·
Graduate Non-locality and The First Law of Thermodynamics
- Dennis Plews
- · Replies 3 ·
Undergrad Momentum and energy in QM and QFT
- asimov42
- · Replies 9 ·
High School Unified Quantum Field: Is it Possible?
- ChrisisC
- · Replies 33 ·
High School Non-Hermitian operator for superposition
- Blue Scallop
- · Replies 7 ·
Undergrad If you shoot an electron at a wall....
- mike1000
- · Replies 39 ·
High School Mistaking QM/Measurement problems....
- Blue Scallop
- · Replies 1 ·
Undergrad Common interaction vacuum for QED + QCD?
- Neutrinos02
- · Replies 4 ·
Graduate Can classical EM be derived from QFT?
- maka89
- · Replies 3 ·
Undergrad QM Phase Symmetry & Charge Conservation
- davidge
- · Replies 14 ·
Undergrad Completeness Relation: 2 Questions Answered
- redtree
- · Replies 9 ·
Undergrad What Is the Physics Behind Particle Traveling Over Voltage?
- TBert
- · Replies 9 ·
High School Canonically conjugate quantities
- PrathameshR
- · Replies 19 ·
Undergrad Radiation passing through Planck-scale wormholes
- Troodon Roar
- · Replies 2 ·
Graduate What Experimental Techniques Can Enhance Quantum State Preparation?
- JordanD
- · Replies 2 ·
Undergrad Deriving resolution of the identity without Dirac notation
- redtree
- · Replies 9 ·
Graduate Dependence of entropy and temperature on Planck's constant
- spaghetti3451
- · Replies 1 ·
Undergrad Quirk: A drag-and-drop in-browser quantum circuit simulator
- Strilanc
- · Replies 13 ·
High School Is Quantum Mechanics Necessary for Understanding Water's Properties?
- Andrew Wright
- · Replies 4 ·
Undergrad Atomic orbitals: change during excitation?
- pierce15
- · Replies 5 ·
Undergrad Phase of |0> when it appears in a product
- Swamp Thing
- · Replies 3 ·
High School Is There a Quantum Lift Analogous to Aerodynamic Lift?
- Blue Scallop
- · Replies 3 ·
Undergrad Would we observe a changing Planck's constant?
- sgphysics
- · Replies 8 ·
Undergrad Delayed choice quantum eraser - partial information retrieval
- rnk
- · Replies 2 ·
High School Is QE knowing how to correlate particles' measurements?
- Chris Miller
- · Replies 6 ·
Undergrad Introducing QM via commutators
- MichPod
- · Replies 7 ·
Undergrad What are the probabilities for different outcomes with Bose-Einstein statistics?
- Swamp Thing
- · Replies 4 ·
Undergrad Data from a delayed choice quantum eraser experiment
- boxfullofvacuumtubes
- · Replies 1 ·
Graduate Resources for GRW, CSL collapse models
- anubodh
- · Replies 2 ·
Undergrad Why is momentum the Fourier transform of position?
- entropy1
- · Replies 12 ·
High School Some website about new Bohr model
- HAYAO
- · Replies 3 ·
Undergrad Distinguishable Terms in a State
- Swamp Thing
- · Replies 1 ·
Graduate Qbit: More than a two-state quantum-mechanical system?
- askalot
- · Replies 7 ·
High School Double slit experiment - doesn't measurement affect photons?
- Saiker
- · Replies 9 ·
Graduate Gauge-invariant operators in correlation functions
- spaghetti3451
- · Replies 1 ·
Undergrad They physics of phase inversion in Grover's algorithm
- dreamspy
- · Replies 2 ·
Undergrad Can the energy of a particle ensemble in QFT be bounded over time?
- asimov42
- · Replies 37 ·
Undergrad How to Shut Up and Calculate a Delayed Choice Outcome
- Swamp Thing
- · Replies 2 ·
Graduate Gauge transformations at infinity
- spaghetti3451
- · Replies 1 ·
Undergrad What's wrong with Quantum Mechanics and its teaching?
- MichPod
- · Replies 16 ·
Undergrad Scattering, 4 point correlator, number of distinct Feynman diagrams
- binbagsss
- · Replies 15 ·
High School Photons -- do you know what they are?
- rahaverhma
- · Replies 2 ·
High School Quantum entanglement and relativistic simultaneity
- Chris Miller
- · Replies 12 ·
Undergrad Trying to model wave function collapse
- mike1000
- · Replies 6 ·
Graduate What’s the physical nature of the pilot wave?
- Maxwell's Demon
- · Replies 4 ·
Graduate Quantized Dirac field calculations
- Nod
- · Replies 5 ·
Undergrad Some said 1000's of experiments support superposition but
- mike1000
- · Replies 31 ·
Undergrad Do slits absorb photons at the edges?
- Swamp Thing
- · Replies 1 ·
Undergrad Where Can I Find Loudon's Paper on Two-Particle Interference Online?
- Swamp Thing
- · Replies 4 ·
Graduate Total derivative of momentum in quantum mechanics
- kd6ac
- · Replies 5 ·
Undergrad Question about Delayed Choice Quantum Eraser
- LikenTs
- · Replies 6 ·
High School Time dilation and quantum entanglement.
- ArmChairPhysicist
- · Replies 3 ·
High School Is this a good understanding of superposition?
- Addez123
- · Replies 7 ·
Undergrad Modeling EPR - Local or Non-Local
- edguy99
- · Replies 23 ·
High School Why did Max Planck quantize light?
- Zahidur
- · Replies 10 ·
Undergrad What inspired Dirac's formulation of quantum theory?
- victor94
- · Replies 3 ·
Undergrad Virial theorem as applied to hydrogen atom
- Dadface
- · Replies 2 ·
Undergrad Derivative = 0 is always minima? (Linear variational method)
- HAYAO
- · Replies 8 ·
High School Electrons interfere with eachother?
- dooces
- · Replies 1 ·
Undergrad The problem with measuring short distances
- Higgsono
- · Replies 4 ·
Graduate What happens mathematically when a wave function collapses
- Christoffelsymbol100
- · Replies 20 ·
Undergrad Still unclear on superposition
- mike1000
- · Replies 9 ·
Undergrad Why can't all bits of an entanglement be read at once?
- Kenneth Adam Miller
- · Replies 1 ·
High School What Are the Connections Between 120-Sided Dice and Eigenvalues?
- mike1000
- · Replies 9 ·
Graduate Normalizable States in QM: Bound vs. Scattering
- asdf60
- · Replies 4 ·
Undergrad Constraints on potential for normalizable wavefunction
- Gfunction
- · Replies 1 ·
Undergrad How do we measure the EM field that a particle produces?
- joegibs
- · Replies 21 ·
Undergrad Could Hidden Variables Explain Quantum Mechanics without Locality?
- Flatland
- · Replies 10 ·
Undergrad Trying to understand the interference limits of matter-wave
- tiagovtristao
- · Replies 9 ·
Undergrad Bell test where observers never were in a common light cone
- greypilgrim
- · Replies 4 ·
Undergrad Can Quantum Fields be derived from Particles?
- friend
- · Replies 12 ·
Undergrad Understanding the Wave Function to dψ^2/dx^2 and Its Properties
- Another
- · Replies 2 ·
Graduate Stephen Weinberg on Understanding Quantum Mechanics
- jedishrfu
- · Replies 152 ·
Undergrad Understanding Double Slit interference and Uncertainty
- John Morrell
- · Replies 7 ·
Undergrad Too much info for multiparticle wave function?
- MichPod
- · Replies 8 ·
Undergrad A, a† etc. within integrals: does it have to be so hard?
- Swamp Thing
- · Replies 1 ·
Undergrad Entanglement and photon polarization
- fog37
- · Replies 13 ·
Undergrad Quantum Mechanics does Riemann Zeta Function
- jedishrfu
- · Replies 1 ·
Undergrad How do i find the eigenvalues of this tough Hamiltonian?
- baouba
- · Replies 1 ·
High School Commonly quoted PF article required.
- houlahound
- · Replies 13 ·
High School Blackbody Radiation: Explaining Ultraviolet Catastrophe & Planck's Solution
- Jordan Regan
- · Replies 3 ·
Undergrad Decomposing a density matrix of a mixed ensemble
- Gabriel Maia
- · Replies 4 ·
High School Conservation of Total Spin in the Stern Gerlach Experiment
- CassiopeiaA
- · Replies 4 ·
Undergrad Understanding Abstract Kets & Hilbert Space
- mike1000
- · Replies 17 ·
High School Irreversibility vs reversibility
- Blue Scallop
- · Replies 57 ·