Join in expert discussion on atomic and condensed matter. Methods for atoms, molecules, condensed matter. This includes the structure of the atom, its energy states, and its interactions.
Threads
Graduate Can protons leave the proton-exchange membrane of a working fuel cell?
- mconnelldouglas
- · Replies 0 ·
Graduate The passage of negatively charged ions through a thin metal wall
- mconnelldouglas
- · Replies 1 ·
Undergrad Graphene and twistronics, Kavli Prize, 2026 - Rutgers, MIT, UT Austin
- Astronuc
- · Replies 4 ·
Graduate Does PSG require a lattice and a fundamental Hamiltonian?
- albronco1
- · Replies 4 ·
Graduate Will liquid gallium wet oxygen-free molybdenum in a vacuum?
- darkblue369
- · Replies 2 ·
Graduate Soft condensed matter physics
- Astronuc
- · Replies 4 ·
Undergrad Trouble piecing together LS coupling
- AronYstad
- · Replies 1 ·
Undergrad Edge of Brillouin zone,1D crystal, graphene, standing wave, band gap
- Spinnor
- · Replies 2 ·
Graduate Unexpected irregular reflection signal from a high-finesse cavity
- teen_physicist
- · Replies 6 ·
Graduate Momentum density of silicon valence band using bandstructure
- Samisdabes
- · Replies 2 ·
Graduate Monte Carlo simulation for the classical isotropic 3D Heisenberg model
- IWantToLearn
- · Replies 1 ·
Undergrad Time rondeau crystals, experimental observations
- Astronuc
- · Replies 1 ·
Graduate Wave properties of a phonon
- eneacasucci
- · Replies 4 ·
Graduate Does direct/indirect band gap occur in solids other than semiconductors?
- qnach
- · Replies 7 ·
Graduate Can't find eigenvalues for s-wave superconductor
- Frigorifico
- · Replies 1 ·
Graduate Ion trap inside a microwave cavity
- Malamala
- · Replies 0 ·
Graduate Stability of persistent currents in superconductors regardless of temperature
- Stanislav
- · Replies 77 ·
Undergrad Instantaneous dipole moment and orbitals
- asphy
- · Replies 2 ·
Undergrad Conversion of a .sle file to VAMAS file to analyse XPS Data in CasaXPS
- notanota
- · Replies 1 ·
Undergrad Lennard-Jones potential and interatomic distance
- eneacasucci
- · Replies 3 ·
Undergrad Is this Lennard Jones potential image wrong on the Wikipedia Italian page?
- eneacasucci
- · Replies 1 ·
Graduate Gas sensing using VASP software (computational physics)
- ramana3797
- · Replies 2 ·
Undergrad Could anyone give me a step by step guide to using VASP for DFT calculations?
- ramana3797
- · Replies 3 ·
Undergrad Total spin from atomic spectroscopy term symbols, e.g. neon's excited states
- Yuli
- · Replies 0 ·
Graduate Need guidance for using and understanding NuShellX
- PhysicsAdmirer18
- · Replies 1 ·
Undergrad How does the electron come back down in energy level after absorbing a photon?
- jjschwartz1
- · Replies 37 ·
Undergrad The relationship between atoms and the Universe
- bjdx
- · Replies 6 ·
Undergrad The relationship between the matter, energy, time and space of atoms
- bjdx
- · Replies 7 ·
High School Nature Reports That Physicists Turn Lead into Gold
- Greg Bernhardt
- · Replies 12 ·
High School Covalent bonds in diamond
- PatrickP2
- · Replies 2 ·
Graduate Bending Salt Crystals (xray monochromator)
- Ducatidragon916
- · Replies 0 ·
Graduate Confused about noise power spectral density measurement
- Malamala
- · Replies 0 ·
Graduate Power spectral density of a laser's frequency noise
- Malamala
- · Replies 6 ·
Undergrad Doing a measurement on a object
- hagopbul
- · Replies 3 ·
High School How does lattice vibration affect electron mobility in semiconductor?
- Aria James
- · Replies 1 ·
Graduate Polarisation rotation in Rb vapour cell due to laser light with sweeping frequency
- Trying_hard
- · Replies 2 ·
Undergrad Is there action at a distance at the atomic level in physics?
- sahashmi
- · Replies 8 ·
High School Why did Rutherford conclude the atom was mostly empty space?
- rocknrollkieran
- · Replies 27 ·
Graduate Interference pattern for a laser beam through an AOM
- Malamala
- · Replies 4 ·
Graduate Secondary electron in SEM
- zonnebloem
- · Replies 11 ·
Graduate Reproducibility in condensed matter
- pines-demon
- · Replies 1 ·
Undergrad Source of the damping force in Lorentz model
- asphy
- · Replies 1 ·
Graduate Question about the EOM used for PDH locking
- Malamala
- · Replies 0 ·
Graduate Photon absorption influenced by semiconductor doping?
- photonwanderer
- · Replies 3 ·
Graduate How to practically perform first-principles calculations on Li-ion batteries?
- rentj
- · Replies 0 ·
Undergrad PV cell: understanding electron movement in the conduction band
- matthias31415
- · Replies 24 ·
Graduate The risk of a superconducting cable exploding
- jeffinbath
- · Replies 1 ·
Undergrad Berry phase in the Brillouin zone
- hokhani
- · Replies 3 ·
Undergrad Condensed vs. degenerate matter?
- snorkack
- · Replies 3 ·
Undergrad Calculating D-Spacings in a Monoclinic Cell
- tappy
- · Replies 7 ·
Undergrad Direct Gibbs energy calculation from molecular dynamics
- ab_kein
- · Replies 1 ·
Undergrad Questions About Reciprocal Lattice Edge Length
- lemonxx
- · Replies 1 ·
Graduate How to calculate potential difference using Poisson's eq?
- wasong
- · Replies 5 ·
Graduate Two-level system in a thermal bath
- Malamala
- · Replies 0 ·
Undergrad Angular stability of a Fabry–Pérot cavity
- Malamala
- · Replies 1 ·
Undergrad What Are the Implications of Discovering Semi-Dirac Fermions in ZrSiS?
- pines-demon
- · Replies 0 ·
Undergrad Is it theoretically even possible to operate a superconductor at 25C?
- mad mathematician
- · Replies 4 ·
Graduate Confused about the Purcell effect in a cavity
- Malamala
- · Replies 2 ·
Undergrad Alternative materials in high temperature superconductors
- hamiiiii
- · Replies 13 ·
Undergrad Why are the crystallographic direction indices u,v, and w?
- Stenny
- · Replies 2 ·
Graduate Physical interpretation of hopping between orthogonal orbitals
- hokhani
- · Replies 4 ·
Graduate Liouville space and nonlinear optical spectrosopy -- deriving the the second order nonlinear optical signal
- PRB147
- · Replies 0 ·
Graduate Translation-invariant systems and binary functions of spatial variables
- hokhani
- · Replies 10 ·
Undergrad Laser and excited state linewidths in Rabi oscillations
- Malamala
- · Replies 2 ·
Graduate Optical response of In_xGa_1-xAs pin detector
- ribella
- · Replies 0 ·
Undergrad Equipment for simple spectrometer
- hagopbul
- · Replies 10 ·
Graduate Rayleigh vs Raman scattering for low saturation
- BillKet
- · Replies 0 ·
Graduate Confused about selection rules in optical transitions
- Malamala
- · Replies 0 ·
High School PV cell charge separation by an external electric field
- askingask
- · Replies 13 ·
Undergrad Creep mechanism (thermal and irradiation induced/enhanced) and embrittlement in fcc and bcc
- eneacasucci
- · Replies 5 ·
Undergrad Hysteresis of a Compressed Solid
- Edsel
- · Replies 5 ·
Undergrad Effect of fast-neutron irradiation on the tensile properties of steels
- eneacasucci
- · Replies 2 ·
Undergrad Can a cloud of electrons be stabilized by interactions between them?
- Suekdccia
- · Replies 7 ·
Graduate Free carrier density and the electron momentum relaxation time
- Adrian Tudini
- · Replies 1 ·
Undergrad Calculation of absorption edges of Niobium
- LeoJakob
- · Replies 3 ·
Graduate Lyman-Series: calculating the nuclear mass of an isotope
- LeoJakob
- · Replies 2 ·
Undergrad Frank Condon factors in molecules
- kelly0303
- · Replies 1 ·
Graduate Band Structure in solids versus Superconductivity
- DaTario
- · Replies 11 ·
Undergrad Raman spectroscopy calculations
- RamanSpectroscopyFun
- · Replies 1 ·
Graduate Higher Ionization Energies Germanium
- Eminator
- · Replies 1 ·
Graduate Problem using Gutzwiller-RVB theory for high-temperature superconductivity
- dieon
- · Replies 0 ·
Undergrad Gap Equations Plotting Error in Python: Need Help Debugging
- dieon
- · Replies 7 ·
Graduate Bulk and Slab electronic structure differences
- MDT GH
- · Replies 6 ·
Graduate How Do You Solve Harper's Equation in Quantum Mechanics?
- tobix10
- · Replies 4 ·
Undergrad Latest explanation for "stability of high multiplicity states"
- adf89812
- · Replies 1 ·
Graduate How to do Convergent-Close Coupling (CCC)
- STZweig
- · Replies 0 ·
Graduate Anyone knows the slow light in EIT？
- wangvivi
- · Replies 0 ·
Graduate Transition frequency -> Rydberg oxygen atoms
- Shivani_Ram
- · Replies 10 ·
Graduate Is Chern number exactly an integer of half-integer?
- Mohammad-gl
- · Replies 5 ·
Graduate Coercive field in ferroelectrics perovskites
- hmdan
- · Replies 0 ·
Graduate Flash memory and electron tunneling
- Brzohn
- · Replies 2 ·
Graduate How can I calculate spin Hall conductivity for a 4*4 Hamiltonian?
- Mohammad-gl
- · Replies 4 ·
Undergrad Hall effect in P-type semiconductors: electron-centric heuristic?
- Swamp Thing
- · Replies 0 ·
Undergrad Insulator band gap and applied voltage?
- gaiussheh
- · Replies 2 ·
Graduate Cavity locking using Lockin+PID technique
- Hashirama
- · Replies 2 ·
Graduate Question about cgs vs SI units in the context of the Debye Length
- ehchandlerjr
- · Replies 3 ·
Graduate Looking for study group to hack on basic theory in condensed matter
- physicsxanime
- · Replies 3 ·
Graduate Function to fit the light transmitted from a cavity
- kelly0303
- · Replies 1 ·
Undergrad Hartree-Fock: Feynman diagrams vs perturbation theory
- pines-demon
- · Replies 9 ·