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 Difference between atomic behavior in QM and classical physics
- durant35
- · Replies 1 ·
Undergrad Spin Offsetting Charge: How Electrons Balance Out
- Cobalt101
- · Replies 2 ·
Undergrad Infinite Sq. Well sinusoidal gen. soln question
- Zacarias Nason
- · Replies 8 ·
High School Proving entanglement using polarisation & Bell's Inequality
- dbertels
- · Replies 15 ·
Undergrad Are physical constants subject to the uncertainty principle?
- Happiness
- · Replies 10 ·
Graduate Is measurement a yes/no process?
- naima
- · Replies 14 ·
Undergrad Finite vs. Infinite Square Well potential base question
- Zacarias Nason
- · Replies 1 ·
High School Decoherence and the Dust Particle
- Feeble Wonk
- · Replies 74 ·
High School What is the Hamiltonian operator for a decaying Carbon-14 atom?
- Joshua L
- · Replies 5 ·
Undergrad Delta fuction potential general solution
- Danny Boy
- · Replies 5 ·
Undergrad Representation between State Vector & Wave Function
- KastorPhys
- · Replies 4 ·
High School How Does the Double Slit Experiment Show Both Particle and Wave Behaviors?
- dawningparadox
- · Replies 8 ·
Undergrad How exactly does squaring operators (e.g. <p^2> work?
- Zacarias Nason
- · Replies 5 ·
Graduate Can decoherence be formulated in the Heisenberg picture?
- atyy
- · Replies 38 ·
Graduate How to change density of states to eV
- lioric
- · Replies 4 ·
Graduate Quantum non-locality and vacuum polarization
- mbond
- · Replies 4 ·
Graduate Is the direction of spin changed by measurement?
- Jilang
- · Replies 15 ·
Graduate Photon anti-bunching as necessary for BS entanglement
- sciencejournalist00
- · Replies 11 ·
Graduate Relativistic standing wave electrons?
- Garlic
- · Replies 2 ·
Insights Struggles with the Continuum - Part 6 - Comments
- john baez
- · Replies 24 ·
Graduate Lorentz transformations and vector fields
- Giuseppe Lacagnina
- · Replies 1 ·
Graduate What's a firm/good definition of an "attractive" potential?
- Zacarias Nason
- · Replies 2 ·
Graduate How can the Higgs boson have mass?
- Natskyge
- · Replies 7 ·
Graduate Spin wave function of a system of 2 electrons
- Happiness
- · Replies 21 ·
Graduate Is BI really required to validate the Hidden Variables?
- Adel Makram
- · Replies 17 ·
Graduate Is the differential in the momentum operator commutative?
- Zacarias Nason
- · Replies 5 ·
Graduate Can very distant particles be entangled?
- naima
- · Replies 27 ·
Graduate Are Electron Orbitals Always Spherical in Shape?
- Happiness
- · Replies 7 ·
Graduate Maggiore Book misunderstanding
- kroni
- · Replies 8 ·
Graduate Relativity impacts at quantum level
- Cobalt101
- · Replies 1 ·
Graduate Clarifying Neumaier's Interpretation of Quantum Mechanics: Wave or Particle?
- cube137
- · Replies 45 ·
High School Quantum mechanics and reality of matter
- Imran Makhdoom
- · Replies 8 ·
Graduate Electric Field Effect on Quantum Well
- kpsr
- · Replies 2 ·
Graduate What additional events must happen to produce entanglement
- sciencejournalist00
- · Replies 19 ·
Undergrad Why do we need Quantum Mechanics so much?
- fxdung
- · Replies 6 ·
Graduate Superpositions and strong force
- Billmyk
- · Replies 1 ·
Graduate Trying to understand Selection Rules in Cohen-Tannoudji
- kq6up
- · Replies 4 ·
Graduate Euclidean correlators for finite chemical potential
- Einj
- · Replies 5 ·
Graduate Do we really mean Hermitian conjugate here?
- ShayanJ
- · Replies 8 ·
Graduate Stern-Gerlach experiment as a measurement
- ShayanJ
- · Replies 14 ·
How does the formula C-6 come about in the following image?
- weezy
- · Replies 5 ·
Graduate Are All Solutions of the 1D Schrodinger Equation Energy Eigenstates?
- Zacarias Nason
- · Replies 17 ·
Graduate Clebsch-Gordan coefficients symmetry relation
- Happiness
- · Replies 3 ·
Graduate Converting operator matrix (Quantum Chemistry question)
- HAYAO
- · Replies 2 ·
Graduate How Does Trace Relations in Fock Space Reflect on Quantum Expectations?
- naima
- · Replies 7 ·
Graduate Quantum Medicine - Explore Its Possibilities
- curiousman
- · Replies 4 ·
Graduate Is Matter Created continuously?
- ajay.05
- · Replies 11 ·
Graduate Harmonic oscillator positive position expectation value?
- guitarphysics
- · Replies 2 ·
Graduate Entanglement and time dilation
- goran d
- · Replies 3 ·
Graduate Can someone give me a hand with large root here
- lioric
- · Replies 7 ·
Graduate Do you believe what this physics teacher says about entanglement
- sciencejournalist00
- · Replies 13 ·
Graduate Do you believe that entanglement drives the arrow of time?
- sciencejournalist00
- · Replies 9 ·
Graduate Why this macro thing having quantum behaving but other not?
- fxdung
- · Replies 10 ·
Graduate Stat. States, Orthonorm. expansion coefficients etc qn?
- Zacarias Nason
- · Replies 5 ·
Graduate Particle physics basic concept from Standford Uni help
- TimeRip496
- · Replies 1 ·
Graduate How Do Photons Influence Our Vision Through Quantum Wave Properties?
- durant35
- · Replies 13 ·
Graduate What makes localized energy eigenstates, localized?
- Zacarias Nason
- · Replies 3 ·
Graduate Bending of Light in diffraction? Is it actually possible?
- Aurghyadip Kundu
- · Replies 5 ·
Graduate Question about reversability/arrow of time
- eloheim
- · Replies 12 ·
Graduate Kinetic energy of two particles
- Dexter Neutron
- · Replies 5 ·
Undergrad Quantum mechanics is not weird, unless presented as such
- A. Neumaier
- · Replies 544 ·
Graduate Why helicity of photon is 1 but not 3?
- fxdung
- · Replies 37 ·
Undergrad What does Double slit experiment actually mean
- Sophia
- · Replies 14 ·
Graduate What's the difference between these two equations?
- baouba
- · Replies 1 ·
Graduate Is there any reason i is left in the denominator here?
- Zacarias Nason
- · Replies 2 ·
Graduate Decoherence and apparent collapse
- durant35
- · Replies 53 ·
Graduate Are tracks in collision experiments proof of particles?
- A. Neumaier
- · Replies 85 ·
Graduate Spectral Gap or Gapless Undecidable
- .Scott
- · Replies 62 ·
Graduate Can All Particles of a Cat Be in Superposition Simultaneously?
- durant35
- · Replies 60 ·
Graduate Why is Decoherence Needed in Quantum Mechanics?
- zonde
- · Replies 82 ·
RIP Prof Rudolf Haag (5 Jan 2016)
- strangerep
- · Replies 5 ·
Graduate What's the name of the wavefxn int. showing normalizability?
- Zacarias Nason
- · Replies 2 ·
Graduate Hamiltonian and momentum operator acting on a momentum eigenstate
- amjad-sh
- · Replies 11 ·
Graduate Weinberg Lectures on QM (2013 ed.), Equation 3.6.18
- jouvelot
- · Replies 6 ·
Graduate Why Is radiation the highest form of entropy?
- memento
- · Replies 25 ·
Graduate Relativistic vs. Nonrelativistic KE Operator question
- Zacarias Nason
- · Replies 3 ·
Graduate Measurement and Preparation in the Double Slit Experiment
- naima
- · Replies 32 ·
Graduate Spin imparting angular momentum
- Ashphysics
- · Replies 12 ·
Graduate Vectors, Hilbert Spaces, and Tensor Products
- Bashyboy
- · Replies 4 ·
Graduate Now that all loopholes are closed
- Collin237
- · Replies 10 ·
Graduate Exponential of Pauli spin matrices
- Happiness
- · Replies 1 ·
Graduate Problem in basic equalities for Huckel energy
- georg gill
- · Replies 1 ·
Graduate Why are Diagonal Elements of a Time-Dependent Perturbed Hamiltonian Often Zero?
- Morten
- · Replies 2 ·
Graduate Advanced quantum mechanics book with solutions
- omidaut
- · Replies 6 ·
Insights Struggles With The Continuum - Part 2 - Comments
- john baez
- · Replies 39 ·
Graduate Quantum state vector and physical state
- DrClaude
- · Replies 3 ·
Graduate Existence of Space: Does it Exist at Planck Level?
- Anya
- · Replies 2 ·
Graduate An abstract long-distance correlation experiment
- A. Neumaier
- · Replies 242 ·
Graduate Understanding the optimal approximate qubit cloning method
- Strilanc
- · Replies 0 ·
Graduate Solving for Wavelength: What Did I Do Wrong?
- Isaac0427
- · Replies 4 ·
Graduate Are gravitons the quanta of spacetime?
- DuckAmuck
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Graduate Does measurement violate unitarity?
- hideelo
- · Replies 2 ·
Graduate Asynchronous Entangled Photon pairs
- yeezyseason3
- · Replies 2 ·
Graduate References for tunneling decay in magnetic fields
- andresB
- · Replies 5 ·
Graduate Few questions about photoelectricity
- cremor
- · Replies 2 ·
Graduate What is nonlocality in relativity ?
- jk22
- · Replies 2 ·
Graduate Quantum Entanglement: No Comm Thm & Counterfactual Def
- Physicsunderstand1
- · Replies 5 ·
Graduate Did only parts of the diamond get entangled?
- durant35
- · Replies 1 ·
Graduate Mathematical Proof that Photons have No Rest Mass
- Comeback City
- · Replies 4 ·
Graduate Berry's Curvature Equation cross product calculation
- wondering12
- · Replies 1 ·