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 No Absolute Stillness: Questions from New Forum Member Nick
- Nick1234
- · Replies 6 ·
Graduate Quantum Operators Indices Confusion
- barnflakes
- · Replies 10 ·
Graduate Is the Doppler effect for atomic spectra a purely realistic effect?
- wdlang
- · Replies 2 ·
Graduate Fields other than the photon field in the Casimir effect?
- bcrowell
- · Replies 2 ·
Graduate Gaussian Wave Packets - Fiction?
- LarryS
- · Replies 4 ·
Graduate Dirac equation for the conjugated field
- phsopher
- · Replies 2 ·
Graduate The quantum physics of time travel
- monicasharma
- · Replies 1 ·
High School What is space if matter is energy and time is changes in energy?
- jamie m
- · Replies 1 ·
Graduate Irreducible representations of translations
- RedX
- · Replies 11 ·
Graduate Photon Interference: What Happens to the Photons?
- Sergionuevo
- · Replies 3 ·
Graduate Emission in hydrogen atom: recoil and photon properties
- deccard
- · Replies 2 ·
Graduate Quick complex numbers question in QM (probability amplitues)
- phil ess
- · Replies 2 ·
Undergrad What is a Qubit in Quantum Computing?
- 1Truthseeker
- · Replies 1 ·
Undergrad What Does the "\oplus" Symbol Represent?
- DukeLuke
- · Replies 2 ·
Graduate Are Identical Non-Interacting Particles Distinguishable?
- Cryxic
- · Replies 3 ·
Graduate Modelling the shape of an atom
- lavster
- · Replies 9 ·
Undergrad How much energy to ionize an atom for electrostatic levitation?
- astroboy17
- · Replies 1 ·
Graduate Antisymmetry of final State Requiring L = 1
- Mr. Lapage
- · Replies 1 ·
Graduate Leonard Susskind improvisation on the uncomfortable notion of probability ;)
- dmtr
- · Replies 6 ·
Graduate Can total angular momentum be found from its z-component?
- Master J
- · Replies 2 ·
Graduate Planck's constant, h. The limit goes to zero?
- Katiethedil
- · Replies 2 ·
Undergrad Why is there hybridization of orbitals?
- opuktun
- · Replies 16 ·
Graduate What is a non-orthogonal measurement?
- JK423
- · Replies 7 ·
Graduate Relationship between Planck constant and fine structure constant
- 1Truthseeker
- · Replies 5 ·
Graduate What is the actual size of a photon?
- Neo_Anderson
- · Replies 31 ·
Graduate Classical limit of the commutator is a derivative?
- pellman
- · Replies 2 ·
Graduate Self-adjointness domain of P_r^2
- Clausius
- · Replies 2 ·
Graduate What is the Density of States for Electrons in Metal?
- KFC
- · Replies 3 ·
Graduate Why Would a Finite Well Fluctuate?
- RedX
- · Replies 7 ·
Undergrad Does the cat's consciousness collapse the wave function in Schrödinger's cat?
- JRodriguez
- · Replies 33 ·
Graduate Reformulation instead of Renormalizations
- Bob_for_short
- · Replies 85 ·
Graduate How can Uncertainty principle be used to get speed of alpha particle
- strugglin
- · Replies 2 ·
Undergrad How light travels through glass
- bestpavan
- · Replies 21 ·
Graduate Quantum Mechanics on Diatomic Molecule: Info Sources
- hsgade
- · Replies 1 ·
Graduate How to fit quantum LHO into quantum mechanics?
- maya :D
- · Replies 2 ·
Graduate Why do Zeeman transitions with ΔmJ=0 not have zero frequency?
- KFC
- · Replies 4 ·
Graduate Time in a Steady-State Quantum System
- LarryS
- · Replies 1 ·
Graduate Hydrogen Atom Radial Wave Function (limit problem)
- Master J
- · Replies 7 ·
Graduate OPEs in conformal field theory
- nrqed
- · Replies 18 ·
Graduate Bell's Theorem and Counterfactual Definiteness
- Jolb
- · Replies 5 ·
Graduate Why does the particle density operator resemble the wave function in second quantization?
- daudaudaudau
- · Replies 23 ·
Graduate Double Slit/Photo Detection/Is it the SAME photon?
- Supaiku
- · Replies 2 ·
Graduate Probability of finding a particle in a certain state, using projection
- dreamspy
- · Replies 4 ·
Graduate Why is Time Not an Operator in Quantum Mechanics?
- surena1980
- · Replies 8 ·
Graduate Real and imaginary parts of wave function
- spastic
- · Replies 1 ·
Graduate Weak Measurements and Determinism
- Descartz2000
- · Replies 1 ·
Graduate How Do Electron Spin Effects Vary in Pairs of Electrons?
- espen180
- · Replies 1 ·
Graduate I now know what slit the photon came out of
- Neo_Anderson
- · Replies 15 ·
Graduate Spin - any book recommendations?
- dreamspy
- · Replies 40 ·
Graduate Square integrable functions blowing up at infinity
- kof9595995
- · Replies 10 ·
Graduate Shooting humans through a giant double slit experiment
- tj8888
- · Replies 8 ·
Graduate Uncertainty Principle and lifetime
- Niles
- · Replies 1 ·
Graduate Global symmetry of an N-component Klein-Gordon theory?
- weejee
- · Replies 4 ·
Graduate Teaching Yourself Quantum Mechanics and Prerequisites
- bstubbz17
- · Replies 4 ·
Graduate Why do numerical simulations diverge in chaotic regimes?
- wdlang
- · Replies 1 ·
Undergrad Simple explaination of pertibation theory
- venomxx
- · Replies 4 ·
Graduate Why do electrons have specific spin up or down states?
- mccoy1
- · Replies 15 ·
Graduate What is spin for neutral particles
- ArielGenesis
- · Replies 7 ·
Graduate Why doesn't a photon's wavelength increase when it reflects off an object?
- Neo_Anderson
- · Replies 3 ·
Graduate How Does Observation Influence the Reality of the Universe Before Observers?
- NWO
- · Replies 37 ·
Graduate Coincidence counting in Bell experiment
- ajw1
- · Replies 3 ·
Graduate Is it acceptable to use plane waves?
- RedX
- · Replies 7 ·
Graduate What properties does Baym use to derive the L commutation relation?
- univox360
- · Replies 5 ·
Graduate Books detailing Bell's inequality derivation
- The thinker
- · Replies 3 ·
Graduate Entanglement entropy vs Entropy
- wam_mi
- · Replies 1 ·
Graduate How can we visualize the negative sign in electron wave functions?
- mccoy1
- · Replies 3 ·
Graduate Can Quantum Mechanics Explain the Uncertainty Principle?
- Archosaur
- · Replies 33 ·
Graduate What is the Quantum Explanation for the Law of Malus?
- skippy1729
- · Replies 2 ·
Graduate Effect of Negative permittivity?
- indio007
- · Replies 2 ·
Undergrad Does a photon travel in a straight line?
- DavidSullivan
- · Replies 26 ·
Graduate Wave function of an observer, 'always collapsed'?
- dmtr
- · Replies 6 ·
Graduate Ward identities in Minimal Subtraction Scheme
- gheremond
- · Replies 2 ·
Graduate Quantum computing (Why is it important?)
- Lamented_Soul
- · Replies 8 ·
Graduate Bells inequality be satisfied with equivalent local QM?
- Gerenuk
- · Replies 35 ·
Graduate Reading the value of a qubit without changing its value
- dmtr
- · Replies 1 ·
Graduate Two slit experiment - variable detector
- tj8888
- · Replies 4 ·
Graduate Can the wave function be a constant?
- dreamspy
- · Replies 10 ·
Graduate Electron frequency and wavelength
- new_id_7
- · Replies 4 ·
Graduate Overlap integrals: What are they and how do we arrive at the formula?
- Mazzur
- · Replies 3 ·
Graduate Equal Commutators: What Do They Tell Us?
- daudaudaudau
- · Replies 3 ·
Graduate How does a magnetic feild work?
- peron
- · Replies 2 ·
Graduate Pauli Matrices as generators of SU(2)
- OSUPhysics
- · Replies 1 ·
Graduate What Happens to Photons During Ionization?
- Thermodave
- · Replies 4 ·
Graduate Could a time particle explain mass, relativity and dark matter?
- ryan albery
- · Replies 2 ·
Graduate What are the practical uses of Berry's Phase in scientific research?
- Niles
- · Replies 2 ·
Graduate Feynman diagrams - neutrino interactions
- billbray
- · Replies 2 ·
Graduate Quantum Physics Debate, Is It Relevant?
- hilo1222
- · Replies 1 ·
Undergrad Do physical properties of metals affect threshold frequency for the photoelectric effect?
- SmileyMan
- · Replies 5 ·
Graduate Two particle probability density
- daudaudaudau
- · Replies 1 ·
Graduate Do MB statistics imply distinguishability of electrons?
- hardphysics
- · Replies 9 ·
Graduate Where does the 1/X(x) term come from in 3D Schrödinger equation separation?
- Master J
- · Replies 3 ·
Graduate Is the Missing Mass in the Universe Similar to Water in a Pond?
- buckrogers
- · Replies 3 ·
Graduate Calculating Bethe Stopping Power Constant: 606,235 or 78,500?
- John2
- · Replies 2 ·
Graduate Question regarding the Pauli Exclusion Principle?
- zeromodz
- · Replies 4 ·
Graduate Why is the integral of the Dirac Delta potential related to its properties?
- alejandrito29
- · Replies 7 ·
Graduate Wick's Theorm to Feynman Diagrams?
- pudilz
- · Replies 1 ·
Graduate [cryptography] quantum key distribution
- martman
- · Replies 1 ·
Graduate What are the latest research trends and resources on entanglement entropy?
- wam_mi
- · Replies 1 ·
Undergrad Scanning tunneling microscopes, physics lab
- diffusion
- · Replies 8 ·
Graduate Some Explanation about Heisenberg,s Uncertainty Particle
- firoz.raj
- · Replies 4 ·