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 What is the quantum mechanics descriptions for a plasma radiation
- xhtp2000
- · Replies 1 ·
Graduate Quantum entanglement (information transmitted )
- shumy
- · Replies 4 ·
Graduate Photon interacting with 1D-boundary
- SpinFollower
- · Replies 2 ·
Graduate Selection rules for atomic transitions
- copernicus1
- · Replies 3 ·
Graduate Is the Transmission Probability of a Vertically Polarized Photon Really 1.0?
- Alfred Cann
- · Replies 7 ·
High School How does visible light carry energy through reflection?
- K Raja Sharma
- · Replies 1 ·
Graduate Solutions of the schrödinger eq. for a potential step
- 71GA
- · Replies 8 ·
Graduate Schrodinger equation subjected to general potential
- ace1719
- · Replies 1 ·
Graduate Why is the concept of a one dimensional box used?
- pa5tabear
- · Replies 4 ·
Graduate Is There a Metric Tensor in Hilbert Space That Transforms Vectors to Duals?
- snoopies622
- · Replies 14 ·
Graduate Changing variables in the Schrodinger equation
- AxiomOfChoice
- · Replies 1 ·
Graduate Question about noether's theorem
- geoduck
- · Replies 2 ·
Graduate Dark state & schrödinger equation
- Mahdimatika
- · Replies 5 ·
Graduate What happens when we measure spin of a fermion?
- andrewkirk
- · Replies 2 ·
Graduate How does a collider know both the energy and position of the particle?
- jshrager
- · Replies 2 ·
Graduate Are macroscopic objects self-collapsing ?
- jshrager
- · Replies 2 ·
High School Why Do Electrons Closer to the Nucleus Have Lower Energy?
- waterliyl
- · Replies 3 ·
Graduate Commutator with Tensor Notation
- Septim
- · Replies 11 ·
Graduate Orbital angular momentum and powers of k
- Einj
- · Replies 4 ·
Graduate Quantum amplitudes versus probability
- spaghetti3451
- · Replies 14 ·
Graduate Expectation values for Hydrogen
- TheRascalKing
- · Replies 2 ·
Graduate Quantum eraser experiment - another thought experiment
- najibmok
- · Replies 19 ·
Graduate Book or notes for 'Quantum Field Theory II' by Francois David (PSI)
- center o bass
- · Replies 1 ·
Graduate Problems with photoelectric effect lab
- evangoor
- · Replies 2 ·
Graduate Why is the Matrix Exponential Related to the Hamiltonian in QM?
- Infrared
- · Replies 9 ·
Graduate QM operator and double slit experiment doubt basics
- santo35
- · Replies 3 ·
Graduate General Entanglement and Measurement
- Vinncent
- · Replies 3 ·
Graduate Amplitude's time dependence in Heisenberg representation
- LayMuon
- · Replies 1 ·
Graduate Energies and numbers of bound states in finite potential well
- 71GA
- · Replies 2 ·
Graduate Valid reason to reject the Bohr model?
- tade
- · Replies 9 ·
Undergrad History of Planck's equation(s)
- tade
- · Replies 16 ·
Graduate Is There Room for Interpretation in Quantum Mechanics?
- alexepascual
- · Replies 9 ·
Graduate Quantum Scale, Statistical Physics
- M. next
- · Replies 1 ·
Graduate Operators and the position representation
- tom.fay
- · Replies 2 ·
Graduate Does photon lose its momentum?
- 2sin54
- · Replies 5 ·
Graduate Can one speak of the wave function of a object measured?
- nomadreid
- · Replies 2 ·
Undergrad Explanation behind Moseley's Law?
- tade
- · Replies 3 ·
Graduate Interference in Quantum Mechanics (Basic)
- enceladus_
- · Replies 21 ·
Graduate Plotting a wavefunction for a finite potential well doesn't work out
- 71GA
- · Replies 2 ·
Graduate Solving the Hydrogen Molecule computationally
- dipole
- · Replies 2 ·
Graduate Energy levels for a 3D cubical box
- cytochrome
- · Replies 4 ·
High School Electron is it a particle or wave ?
- Ahmed_Pysics
- · Replies 26 ·
Graduate What is the use of WKB after Schrodinger equation is established?
- wdlang
- · Replies 1 ·
Graduate Dirac eq gamma matrices question
- copernicus1
- · Replies 4 ·
Graduate Is every state an eigenstate of an observable?
- atyy
- · Replies 27 ·
Graduate Schrodinger equation for close and opens system
- brajeshbeec
- · Replies 4 ·
Graduate Is Quantum Mechanics Really Simple to Understand for Beginners?
- capcom1983
- · Replies 19 ·
Graduate Entanglement at cosmic distances possible?
- ealbers
- · Replies 1 ·
Graduate How can bosons made of fermions occupy the same quantum state?
- andrewkirk
- · Replies 7 ·
Undergrad Stimulated Emission: Understanding Its Changing Rate
- BareFootKing
- · Replies 4 ·
Graduate QM: Potential Energy & Particle Free Fall
- LagrangeEuler
- · Replies 2 ·
Graduate Problems with a Charged Particle in a Magnetic Field
- phi1123
- · Replies 5 ·
Graduate Proof of vailidity of WKB approximation Please help
- metalrose
- · Replies 8 ·
High School How can a photon move something( light moves), if it doesn't have a ma
- silvercats
- · Replies 12 ·
Graduate Fourier transform of integration measure (Peskin and Schroeder)
- center o bass
- · Replies 1 ·
Graduate Splitting up of functional integral (Peskin and Schroeder)
- center o bass
- · Replies 2 ·
Graduate Understanding Virtual Particles: An Introduction to the Concept and Properties
- Quantumsatire
- · Replies 3 ·
Graduate Double slit questions from an observation perspective
- GOD__AM
- · Replies 4 ·
Graduate Z-direction. Quantisation axis
- LagrangeEuler
- · Replies 1 ·
Graduate Decoherence And What happens in reality
- the_pulp
- · Replies 5 ·
Graduate What causes faraday effect quantum mechanically?
- Jerrynap
- · Replies 1 ·
Graduate Calculating Electric Fields for H Atom Ionization with SFA
- ENDLESSYOU
- · Replies 1 ·
Undergrad What exactly happens when an electron gains energy?
- Tuvshee
- · Replies 4 ·
Graduate Correspondence principle for a step potential
- bcrowell
- · Replies 6 ·
Graduate Corralling Electrons: Wave-Particle Duality & Probability Waves
- john.spidey
- · Replies 2 ·
Graduate Can SSB Be Visually Understood? Ideas for Intuitive Explanations
- LayMuon
- · Replies 1 ·
Graduate Circular Interference Patterns in Multi-Slot Experiments
- ratchettrack
- · Replies 2 ·
Graduate Slater Determinant & Permanent
- M. next
- · Replies 2 ·
Graduate Equilibrium bond lengths for excited molecules
- Woodles
- · Replies 1 ·
Graduate How do you quantumly entangle particles?
- tinypositrons
- · Replies 27 ·
Graduate What is the physical significance of having +/- a constant multiplying
- Whistlekins
- · Replies 1 ·
Graduate Sakurai page 27: What is this 'delta_1'?
- omoplata
- · Replies 7 ·
Graduate Commutativity of the Born Rule
- the_pulp
- · Replies 50 ·
Graduate Trouble with Wick rotation in 1+1d abelian Higgs model
- rgoerke
- · Replies 5 ·
Undergrad Energy Equvalant of different masses
- ratchettrack
- · Replies 3 ·
Graduate Understanding Electromagnetic Transitions: |ΔI|=1, ΔIz=0
- LayMuon
- · Replies 4 ·
Graduate What is so 'counter-intuitive' about the double-slit experiment?
- mintparasol
- · Replies 12 ·
Graduate Interaction tetween two waves soliton
- alejandrito29
- · Replies 1 ·
Graduate How was the Taylor expansion for SSB in superconductors done?
- LayMuon
- · Replies 6 ·
Graduate Quantum Eraser Experiment: Fact or Fiction?
- g.lemaitre
- · Replies 3 ·
Undergrad Hydrogen Atoms and Spectral Lines
- PhyHunter
- · Replies 4 ·
Graduate Is Quantum Mechanics saying we've already existed and will again?
- Seminole Boy
- · Replies 2 ·
Graduate Finite Potential Well Solutions
- 71GA
- · Replies 1 ·
Graduate Can an Electron Be a Frame of Reference in Quantum Mechanics?
- orthogonal
- · Replies 6 ·
Graduate Is a wave function as complete as can be
- Roodles01
- · Replies 2 ·
Graduate Transmission and reflection coefficients
- pleasehelpmeno
- · Replies 2 ·
Graduate Why Does the Lone Electron in Silver Have Zero Orbital Angular Momentum?
- ENDLESSYOU
- · Replies 2 ·
High School Uncertainity regarding measurement
- shounakbhatta
- · Replies 2 ·
Graduate What's the source of EM radiation
- Naveen3456
- · Replies 34 ·
Graduate QHO Solutions: What is Imaginary Part?
- LarryS
- · Replies 1 ·
Graduate Shouldn't the operator be applied to both the wf anD its modulus?
- jshrager
- · Replies 2 ·
Graduate Time-energy uncertainty (question after reading FAQ)
- mikeph
- · Replies 5 ·
Graduate Does Multiple Compton Scattering Occur in Laser-Electron Interactions?
- danno
- · Replies 1 ·
Graduate Quantum Mechanics: Defining Dimensions
- Chemist@
- · Replies 14 ·
Graduate Interesting View Of Quantum Mechanics and The Measurement Problem
- bhobba
- · Replies 2 ·
Graduate Creation and annihilation operators
- LagrangeEuler
- · Replies 5 ·
Graduate How to understand current-density operator
- theochem
- · Replies 2 ·
Graduate Why is the Symmetry Group of the 9j Symbol Isomorphic to S_3 x S_3 x S_2?
- Yoran91
- · Replies 2 ·
Undergrad In photoelectric effect mass reduce or increase ?
- big_bounce
- · Replies 5 ·
Graduate Understanding Spontaneous Symmetry Breaking in Quantum Field Theory
- geoduck
- · Replies 3 ·