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
Graduate How Does Electron Screening Affect Charged Particle Scattering in Atoms?
- MattLiverpool
- · Replies 4 ·
Why was the thread on Lamb's paper on the photoelectric effect locked?
- conway
- · Replies 3 ·
Graduate Operator in second quantization
- Alexios
- · Replies 4 ·
Graduate Collapse of wavefunction - how long it takes?
- paweld
- · Replies 19 ·
Graduate Why is -ih/2pi d/dx associated with the momentum operator in X basis?
- Mr confusion
- · Replies 22 ·
Graduate Feynman on infinite particles inside protons and relativity
- GreatBigBore
- · Replies 1 ·
Graduate Fermions must be described by antisymmetric and bosons by symmetric
- Mr confusion
- · Replies 18 ·
Graduate Recommended introductory quantum mechanics textbooks
- higgsnerd137
- · Replies 1 ·
Graduate Why reflection coefficient equals 1 for step potential when E<V0
- hasanhabibul
- · Replies 2 ·
Graduate Why does spin add in quantum mechanics?
- Xian
- · Replies 1 ·
Graduate What does the product AB of non-commuting operators represent physically?
- Fredrik
- · Replies 6 ·
Graduate When to use different forms of harmonic oscillator raising and lowering operators?
- intervoxel
- · Replies 3 ·
Graduate How Does the Charge Conjugate Dirac Field Transform in Quantum Field Theory?
- maverick280857
- · Replies 8 ·
Graduate Why Photon Spin on Z Direction Must be +1 or -1
- paweld
- · Replies 6 ·
Graduate Bhor's rule breaking energy levels
- peeyush_ali
- · Replies 7 ·
Graduate Why Distance Between Lines of Hydrogen Spectrum Decreases
- Ali Asadullah
- · Replies 3 ·
Graduate Heisenberg Uncertainty Principal
- Wannabeagenius
- · Replies 25 ·
Graduate Quantum physics and equivalence principle
- exponent137
- · Replies 1 ·
Graduate Angular momentum - integer or half-integer
- paweld
- · Replies 2 ·
Graduate Software to compute quantum mechanical and thermodynamics properties of ions
- kthouz
- · Replies 1 ·
Graduate Why does the uncertainty principle allow temporary energy non-conservation?
- JK423
- · Replies 22 ·
Graduate The Understanding of Particle-Wave Duality (Can it be fully understood?)
- Vectronix
- · Replies 8 ·
Graduate Calculating the Mass of the Electron: Theory vs. Experiment
- qsa
- · Replies 1 ·
Graduate Why Can't I Show the Simple Identity for the Spin-1 Operator in This Paper?
- TriTertButoxy
- · Replies 6 ·
Graduate How to debunk a quantum mystic?
- QuantumKitty
- · Replies 32 ·
Graduate How do oscillators apply to electromagnetic fields and crystals?
- Mr confusion
- · Replies 6 ·
Graduate Can we ask if a system is in state |φ⟩ without changing it?
- paweld
- · Replies 1 ·
Graduate Confusion about preparing ensemble of particles and no-cloning theorem
- kof9595995
- · Replies 4 ·
Graduate What's the Force Acting on an Isolated Electron at (0,0,0)?
- peeyush_ali
- · Replies 40 ·
Graduate Attractive force between potential wells
- LostConjugate
- · Replies 7 ·
Graduate Estimate ground state energy with HU
- saunderson
- · Replies 1 ·
Graduate Experimental realization of Stern-Gerlach SGy filter
- SpectraCat
- · Replies 1 ·
Graduate Symmetry and irreducible representation
- sineontheline
- · Replies 1 ·
Graduate Probability is square of amplitude or it's product with complex conjugate?
- zonde
- · Replies 2 ·
Graduate Compton Scattering formula for 180 degree scattering.
- durand
- · Replies 5 ·
Graduate Photon entanglement and fair sampling assumption
- zonde
- · Replies 99 ·
Graduate I want a good refrence for su(2) and it's aplecation
- jhon
- · Replies 5 ·
Graduate Double slit experiment - with molecules?
- DaveC426913
- · Replies 26 ·
Graduate Distinguishing between two quantum states
- opsvival
- · Replies 1 ·
Graduate Why Use Free Particle Eigenfunctions for One-Dimensional Quantum Problems?
- Mr confusion
- · Replies 5 ·
Graduate Does Observation Influence Reality in Quantum Physics?
- alex.cordero
- · Replies 1 ·
Graduate Entanglement - the Latest Insights?
- wavering
- · Replies 12 ·
Graduate Difference between s-matrix and interactive field propagator?
- its_blitz!
- · Replies 1 ·
Graduate How Does the Fermi Energy of Bare Protons Influence Chemical Reactions?
- Stanley514
- · Replies 1 ·
Graduate How to Derive Pauli's Equation from Dirac's Equation in a Weak Field?
- maverick280857
- · Replies 3 ·
Graduate Measurement effect upon wave function
- nomadreid
- · Replies 7 ·
Graduate Solid state quantum entanglement?
- SW VandeCarr
- · Replies 3 ·
Graduate Homogeneous and inhomogenous relaxation time
- KFC
- · Replies 1 ·
Graduate Quantum electromagnetic interference
- Sherlock_H
- · Replies 5 ·
Graduate Experiments for time-energy uncertainty relation
- random3f
- · Replies 2 ·
Graduate Solving QFT Problem: Deriving <k'|(\partial_\mu \phi^\dag)\phi|k>
- PJK
- · Replies 7 ·
Graduate Schmidt decomposition and bipartite system
- Fredrik
- · Replies 8 ·
Graduate What Are the Unitaries in the Clifford Group?
- haaj86
- · Replies 1 ·
Graduate FTL Messaging: Does Violating Causality Follow?
- physikal
- · Replies 1 ·
Undergrad Is the electromagnetic field quantized?
- Hernik
- · Replies 4 ·
Undergrad Effect of Intensity and Frequency on Photoelectric Current
- bittu222
- · Replies 1 ·
Graduate QFT general properties operators
- matt8282
- · Replies 4 ·
Graduate Is the locality of the propagator affected by the value of M?
- RedX
- · Replies 2 ·
Graduate Quantum Entanglement: Bell's Telephone - Possible FTL Comms?
- maaku
- · Replies 5 ·
Graduate A Very Convincing Quantum Experiment?
- MarcoD
- · Replies 2 ·
Undergrad Some Explanation with Pauli's Spin Matrices
- firoz.raj
- · Replies 1 ·
Graduate Parity operator and degeneracy in hydrogen atom
- tshafer
- · Replies 4 ·
Graduate What does the EPR paper's reality criterion actually mean?
- LAncienne
- · Replies 2 ·
Graduate Is It Too Late to Learn Quantum Field Theory After Years in a Different Career?
- MarkSheffield
- · Replies 1 ·
Graduate Time Localization Same As Indeterminacy?
- LarryS
- · Replies 1 ·
Graduate Why can't their be zero-energy at the atomic scale
- noblegas
- · Replies 13 ·
Graduate Relaxation time and spatial width
- KFC
- · Replies 1 ·
Graduate Time as a Basis Vector in Quantum Mechanics
- sol66
- · Replies 3 ·
Graduate Is Bohmian mechanics compatible with the mathematical universe hypothesis?
- Dmitry67
- · Replies 19 ·
Graduate What Determines the Lineshape in a Two-Level System with Spontaneous Emission?
- KFC
- · Replies 5 ·
Graduate Some explanation with spin qantum No
- firoz.raj
- · Replies 5 ·
Graduate Lie groups and angular momentum
- sineontheline
- · Replies 10 ·
Graduate What is the standard definition of a quantum in physics?
- trogan
- · Replies 60 ·
Graduate Implications of Quantum physics
- Supaiku
- · Replies 11 ·
Undergrad What is meant by ths wave-particle duality of electrons?
- 54088
- · Replies 2 ·
Undergrad Why do two particles hold themselves together in a vacuum?
- BrettS
- · Replies 1 ·
Graduate Confusion on Meaning of Momentum
- Enjolras1789
- · Replies 8 ·
Graduate Desintegration of particle into 2 fermions
- paweld
- · Replies 6 ·
Graduate Second order approximation in time independent perturbaton theory
- paweld
- · Replies 1 ·
Graduate Is Quantum Energy Teleportation Experimentally Viable?
- ron_ron
- · Replies 1 ·
Graduate Are Autoionizing States Necessary for Accurate Wavepacket Representations?
- chafelix
- · Replies 2 ·
Graduate Is matter infinitely divisible or bounded by Planck length?
- DeadLeaf
- · Replies 29 ·
Graduate Is it possible to capture (contain?) and electron?
- ChmDudeCB
- · Replies 2 ·
Graduate What is Wave-Particle Duality in Quantum Physics?
- tlawton89
- · Replies 3 ·
Graduate Can We Use Quantum Mechanics to Reset Our Biological State?
- genphis
- · Replies 3 ·
Graduate Angular momentum and Hamiltonian commutator
- blagershod.smee
- · Replies 5 ·
Graduate Why are time-ordered integrals called time-ordered?
- Mr confusion
- · Replies 7 ·
Graduate Degenerate pertubation theory when the first order fails
- znbhckcs
- · Replies 1 ·
Graduate Why Tachyons Aren't Allowed in Physics Theory
- zetafunction
- · Replies 2 ·
Graduate Quantum Energy Teleportation and Decoherence
- Cyber Bob
- · Replies 2 ·
Graduate How Do You Calculate the Position of a Neutron Using Wave Functions?
- Cosmossos
- · Replies 1 ·
Graduate Ladder Operators acting upon N Ket
- Godmar02
- · Replies 7 ·
Graduate Question on the Collapse of the wave function?
- fdesilva
- · Replies 1 ·
Graduate Pure mixed entangled confusion
- kop442000
- · Replies 1 ·
Graduate Is the Movement of Real Fields in Tangent Space Related to Spinors?
- Spinnor
- · Replies 5 ·
Graduate Transformations in vector space
- Mr confusion
- · Replies 25 ·
Graduate Quantum Mechanics: Infinitesimal Translation Time Evolution Operator
- ber70
- · Replies 1 ·
Graduate Is the universe fundamentally quantum information?
- Evolver
- · Replies 2 ·
Graduate Sidney Coleman Lectures Free on the Net
- Mk
- · Replies 4 ·
Undergrad What is the wavelength of an object at rest according to de Broglie's equation?
- game1sov3r
- · Replies 1 ·