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.
Graduate What is the correct form of the Berry curvature formula?
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Undergrad Effective Hamiltonian to Rotational Term Values
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Graduate ABCD matrix formalism for real laser
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Graduate Calculating the interaction potential between 2 molecules
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Undergrad Praseodymium, other Elements, and their Magnetic Properties vs. radioactivity
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High School Is the Higgs Boson the Only Source of Mass?
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Undergrad Atomic Structure: Why Does Energy Decrease with Orbit Number?
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Graduate How does graphene Fermi velocity v_F link to the envelope propagation?
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Graduate Thermal Properties of the Free Electron Gas: Fermi-Dirac Distribution
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High School Atom absorbing a photon and emitting a photon afterwards
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Undergrad Issues in understanding screening effects in the Jellium model
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Undergrad Uniform Translation of a Lattice
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Undergrad Colloid complex refractive index from UV-vis spec
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Graduate The relation between ferromagnets, Phi4 and non-linear sigma model
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Graduate Anisotropy of the effective masses in semiconductors
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Graduate ##\Lambda##-enhanced gray molasses cooling
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Undergrad Two-body correlation function computation
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Graduate Yes, there is a typo. The correct electronic configuration for Yb+ is 4f146s.
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Graduate Derivation of Generalized Khon-Sham Scheme
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Undergrad Why do GaN based LEDs continue to function despite a high number of defects?
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Undergrad Conservation of linear momentum in RH relations
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Undergrad Questions Regarding Primitive Unit Cell
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Undergrad Microscope with which atoms can be seen
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Graduate K-point mesh and Monkhorst-Pack
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Graduate Magnetic exchange interaction by first principle (Blume-Capel model)
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Graduate Decay of supercurrents connected to non-superconducting zones?
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Graduate Symmetry breaking in the AdS small/large black hole phase transition
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Graduate Carrier relaxation within a quantum well
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Undergrad AC Stark shift in a 3 level system
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Undergrad Why do only low-pressure gases emit a line spectrum?
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Graduate Deriving the perturbative expansion from Hubbard to Heisenberg
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Undergrad Question about Radiationless De-Excitation
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Graduate Monte Carlo Wang-Landau_antiferromagnetic perovskite
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Undergrad The dispersion interaction and Casimir effect
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High School Can anyone explain the zero bias dark current observations in this paper?
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Graduate Investigating the dielectric constant of a pure polar liquid
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Undergrad How to get plot (optical gain of GaAs)?
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High School New Theory Explaining Why Certain Alloys don't change size when heated
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Undergrad A question on elasticity from Kittel's Solid State Physics book
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How do I calculate the rate constant units for excitation by electron impact?
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Undergrad Pair interaction potential with more than one mininum?
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Graduate Convert .cif to quantum espresso input
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Undergrad Absorption cross section of light in air
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Undergrad What Determines the Use of Normal vs Angular Frequency in Quantum Transitions?
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Undergrad Injection radius in a Penning trap
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Graduate Technical question about AMO experiment in a paper
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Undergrad Why is K an anti-unitary operator in (26)?
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Undergrad Does heating weaken the strong nuclear/electromagnetic forces
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High School Is it possible to ionise a solid, so that it has no electrons left?
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Graduate Question about power broadening
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Graduate Characterizing Electron Beam w/ CMOS-Camera or Faraday Cup
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Undergrad Power functional theory (PFT) vs traditional Dynamic DFT
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Graduate Broad linewidth continuous wave laser
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Graduate From two-body Green's function to one-body in perturbation theory
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Graduate Spectrum analyzer for cavity locking
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Undergrad Colorless Compounds and electromagnetic radiation
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Undergrad Interpretation of temperature in liquids/solids
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Undergrad Are All Periodic Lattice Arrangements Bravais Lattices?
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Undergrad Covalent Bonds -- Which type of force?
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Graduate Differential cross section, double differential cross section, triple...
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Graduate Confused about reflected signal in a bow-tie optical cavity
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Graduate LCAO graphene orbitals wave functions
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Undergrad How is Lorenz-Lorentz relationship possible?
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Undergrad Laser linewidth in a STIRAP process
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Undergrad The missing factor of 2π in reciprocal lattice calculations
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Graduate Looking for a paper describing the Raman effect
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Graduate Two level system in a thermal noise electric field
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Graduate Can we have molecular transitions that change multiplicity?
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Graduate What is the meaning of the (A x B) when talking about CDWs?
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Graduate Can I calculate partial density of states using tight binding?
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Graduate Bipolar transport in a simple illuminated semiconductor bar
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Graduate Empirical tight-binding sp3s* band structure of semiconductors
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Graduate How can I use a fiber EOM to lock a laser with a large input power?
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Phonon Density of States (PDOS) at Gamma Point
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Graduate Confused about population transfer
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Graduate Learning about other experimental areas of physics
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Graduate Nuclear moments in molecular spectroscopy
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Graduate Extracting the uncertainty on a measured atomic transition
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Undergrad Understanding Diffraction Condition in Kittle's Intro to Solid State Physics
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Undergrad Use the Ewald sphere to calculate h,k,l?
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Undergrad Use the Ewald sphere to calculate h,k,l?
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High School What causes the drop of latent heat at lower temperatures in liquid helium?
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Graduate Energy levels shifts in a time-varying electric field
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High School Atomic Energy Levels: Simplified Explanations for the Curious
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High School Quantum Physics and Atomic Physics
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High School Can atoms not notice each other?
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Graduate Why is the Brillouin zone a torus?
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Graduate Superconducting and normal electrons are not interchangeable
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Graduate Question about Stark interference
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Graduate What is the Wigner–Seitz cell of diamond?
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Undergrad Collision-induced free-free absorption in fluids and superfluids
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Undergrad Selection Rules for a Diatomic Molecule?
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Undergrad Compton scattering experiment
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Graduate Time dependent perturbation theory applied to energy levels
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Poor convergence using Fe HMOs for FMO in Gamess
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Undergrad Is it possible to have "ideal surface" whose highest peak is ~1 nm?
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Graduate Trying to reproduce the energy levels of a molecule from a paper
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Undergrad Characteristic X Rays: Understanding Atom Reversion
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Undergrad Energy levels of atoms and spectroscopic analysis
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Undergrad Emission of light from incandescence of metals
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