Atomic and Condensed Matter Forum

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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.
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Insights Intro to the Ionization Energy of Atomic Hydrogen
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Insights Revisiting The Deuterium Lyman Alpha Line Experiment
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Insights Signature of the Sun: Analyzing the Solar Balmer Series Lines
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A Wave properties of a phonon
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A Does direct/indirect band gap occur in solids other than semiconductors?
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I Time rondeau crystals, experimental observations
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A Can't find eigenvalues for s-wave superconductor
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A Ion trap inside a microwave cavity
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A Stability of persistent currents in superconductors regardless of temperature
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I Instantaneous dipole moment and orbitals
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I Conversion of a .sle file to VAMAS file to analyse XPS Data in CasaXPS
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I Lennard-Jones potential and interatomic distance
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I Is this Lennard Jones potential image wrong on the Wikipedia Italian page?
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A Gas sensing using VASP software (computational physics)
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I Could anyone give me a step by step guide to using VASP for DFT calculations?
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I Total spin from atomic spectroscopy term symbols, e.g. neon's excited states
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Need guidance for using and understanding NuShellX
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I How does the electron come back down in energy level after absorbing a photon?
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I The relationship between atoms and the Universe
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I The relationship between the matter, energy, time and space of atoms
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B Nature Reports That Physicists Turn Lead into Gold
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B Covalent bonds in diamond
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A Confused about noise power spectral density measurement
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A Power spectral density of a laser's frequency noise
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I Doing a measurement on a object
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B How does lattice vibration affect electron mobility in semiconductor?
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A Polarisation rotation in Rb vapour cell due to laser light with sweeping frequency
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A Interference pattern for a laser beam through an AOM
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A Secondary electron in SEM
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A Reproducibility in condensed matter
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I Source of the damping force in Lorentz model
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A Question about the EOM used for PDH locking
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A Photon absorption influenced by semiconductor doping?
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A How to practically perform first-principles calculations on Li-ion batteries?
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I PV cell: understanding electron movement in the conduction band
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The risk of a superconducting cable exploding
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I Berry phase in the Brillouin zone
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I Condensed vs. degenerate matter?
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I Calculating D-Spacings in a Monoclinic Cell
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I Direct Gibbs energy calculation from molecular dynamics
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A How to calculate potential difference using Poisson's eq?
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A Two-level system in a thermal bath
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I Angular stability of a Fabry–Pérot cavity
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I What Are the Implications of Discovering Semi-Dirac Fermions in ZrSiS?
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I Is it theoretically even possible to operate a superconductor at 25C?
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A Confused about the Purcell effect in a cavity
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I Alternative materials in high temperature superconductors
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I Why are the crystallographic direction indices u,v, and w?
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A Physical interpretation of hopping between orthogonal orbitals
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A Liouville space and nonlinear optical spectrosopy -- deriving the the second order nonlinear optical signal
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A Translation-invariant systems and binary functions of spatial variables
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I Laser and excited state linewidths in Rabi oscillations
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A Optical response of In_xGa_1-xAs pin detector
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I Equipment for simple spectrometer
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A Rayleigh vs Raman scattering for low saturation
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A Confused about selection rules in optical transitions
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B PV cell charge separation by an external electric field
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I Creep mechanism (thermal and irradiation induced/enhanced) and embrittlement in fcc and bcc
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I Effect of fast-neutron irradiation on the tensile properties of steels
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I Can a cloud of electrons be stabilized by interactions between them?
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I Calculation of absorption edges of Niobium
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A Lyman-Series: calculating the nuclear mass of an isotope
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I Frank Condon factors in molecules
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A Band Structure in solids versus Superconductivity
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I Raman spectroscopy calculations
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A Higher Ionization Energies Germanium
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A Problem using Gutzwiller-RVB theory for high-temperature superconductivity
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I Gap Equations Plotting Error in Python: Need Help Debugging
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A Bulk and Slab electronic structure differences
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A How Do You Solve Harper's Equation in Quantum Mechanics?
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I Latest explanation for "stability of high multiplicity states"
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A How to do Convergent-Close Coupling (CCC)
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A Anyone knows the slow light in EIT？
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A Transition frequency -> Rydberg oxygen atoms
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A Is Chern number exactly an integer of half-integer?
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A Coercive field in ferroelectrics perovskites
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A Flash memory and electron tunneling
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A How can I calculate spin Hall conductivity for a 4*4 Hamiltonian?
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I Hall effect in P-type semiconductors: electron-centric heuristic?
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I Insulator band gap and applied voltage?
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A Cavity locking using Lockin+PID technique
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A Question about cgs vs SI units in the context of the Debye Length
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A Looking for study group to hack on basic theory in condensed matter
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A Function to fit the light transmitted from a cavity
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I Hartree-Fock: Feynman diagrams vs perturbation theory
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A Question about PDH locking a cavity
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I Optical Tweezer Laser Focus/Alignment Troubleshooting
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A Muonic hydrogen dissociation energy and cross-section
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I Experiment on the variation of weight with temperature
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B How Fast Do Different Atoms Vibrate?
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A Information for nitrogen spectra lines
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I Why diode with larger band gap has larger onset potential?
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I On the necessary conditions to form the hydrogen molecule
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A Mode matching to an optical cavity
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A DC Power supply for Optogalvanic Yb hollow cathode lamp
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A Pairing of electrons in superconductors
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A How to calculate the site energy corresponding to monomer with Gaussview 6?
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A How does DFT handle degenerate eigenvectors?
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I Brownian motion and the resultant of forces
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A How can I distinguish degeneracy from band structure?
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A What is the correct form of the Berry curvature formula?
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I Effective Hamiltonian to Rotational Term Values
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A ABCD matrix formalism for real laser
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