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.
Undergrad Absorption and emission spectroscopy of atoms
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Undergrad Why are the spectral lines weak in my hydrogen Geissler tube?
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Undergrad What actually is the free energy? Why is it useful?
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Undergrad P-n junction diodes (Both bias)
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Undergrad Ion Ablation Target Experiment: Estimating Energy Spread
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Undergrad I have a question about the mathematical model of a reflective curve
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Undergrad Hartree-Fock / Szabo & Ostlund book
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Undergrad XRD Scherrer Equation -- need explanation
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Undergrad Bragg condition and Bloch states
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Undergrad Transition Dipole Moments for Strontium
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Undergrad Calculating the specific heat capacity for the 2D Ising model
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Undergrad Numerical Calculation of Hamiltonian Overlaps
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Undergrad What determines the time between atomic absorption and emission of photons?
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Undergrad Derivation of Voigt's Shear Modulus
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Undergrad Measuring the built-in potential of a pn junction
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Undergrad Wave in phonon as "forward and backward" movement vs temperature
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Undergrad Isotope measurements in molecules
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Undergrad How Small Can a Transistor Be and Still Work Reliably?
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Undergrad Can resonance be used to split a molecule of CO2?
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Undergrad Vanadium oxide oxidation states binding energy -- unequal spacing
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Undergrad Trouble understanding the SI definition of 1 second
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Undergrad Space Group Symmetry: What is F d3m Spinel Structure?
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Undergrad Capping layer in semiconductor quantum dot fabrication
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Undergrad Magnetization inside a diamagnetic material antiparallel to ##B_{ext}##
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Undergrad Broken symmetry in ferromagnetism
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Undergrad What makes cobalt oxide (co3o4) a magnetic material?
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Undergrad What are thermal fluctuations?
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Undergrad Survivability in 1 psi zone: How screwed am I?
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Undergrad Optimizing PID Parameters for Laser Servo Locking
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Undergrad Diatomic molecules containing potassium
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Undergrad Spin and wavefunction of excitons
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Undergrad Combination differences with spin
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Undergrad Is the Spin-Rotation Constant Always Positive in Diatomic Molecules?
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Undergrad Can Ablation of Materials Neutralize In-Flight Atomic Beams?
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Undergrad Question about Electronic Band Structure
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Undergrad What Keeps the Electrons and Ions Mixed in a White Dwarf?
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Undergrad Action of a symmetry operation on a Bloch state
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Undergrad How Do Ashcroft and Mermin Derive the Conversion from Equation 22.6 to 22.9?
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Undergrad Why X-ray scattering in crystalline solids is elastic?
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Undergrad Theory of fluctuations in disordered systems
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Undergrad What are the 230 space groups in solid state physics?
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Undergrad Question about the Bohr model of atom and and electron in an orbital
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Undergrad Chemical potential and Fermi level
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Undergrad Fermi energy definition and Fermi-Dirac distribution
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Undergrad What is the Meaning of the Fermi Energy?
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Undergrad A problem with a figure related to band theory
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Undergrad Quantum logic spectroscopy in a quadrupole trap
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Undergrad Sp3 hybridization azimuthal quantum number
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Undergrad Another question from Ashcroft and Mermin: Fermi-Dirac Distribution
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Undergrad Topological question from Ashcroft-Mermin
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Undergrad Argon or Dry N2 for venting a small Ultra High Vacuum chamber
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Undergrad Classical/empirical potential for electron-ion interactions
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Undergrad Vibrational cooling of a molecule
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Undergrad Question about a Servo setup (locking a laser to a cavity)
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Undergrad How Is the Dynamical Matrix Used to Calculate the Phonon Spectrum of Graphene?
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Undergrad Laser cooling in a Penning trap
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Undergrad Are permittivity and permeability quantities that can be predicted?
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Undergrad Dipole moment of Rydberg states
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Undergrad Has the Fermi-Dirac Integral been solved?
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Undergrad Effective molecular Hamiltonian and Hund cases
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Undergrad How to measure a 10 Hz energy splitting of two energy levels
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Undergrad Defect concentration formula w/o Stirling approximation
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Undergrad Valence and conduction bands in five band Hamiltonian
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Undergrad What is the relation between scattering and mobility in solid state physics?
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Undergrad Gap between introductory physics & solid state physics?
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Undergrad Van der Waals attractive force: Why don't the imbalances average out?
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Undergrad Smallest energy we can measure
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Undergrad Can Having Electrons in Energy Levels Indicate Ionisation of Atoms?
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Undergrad What Happens to Energy When Phonons are Damped?
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Undergrad Nuclear size effect on isotope shift
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Undergrad Spin-Orbit Coupling & Isotope Shift
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Undergrad A large normal atom, but with a muon in its outer shell?
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Undergrad How do Cooper pairs carry a current with zero net-momentum?
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Undergrad Silicon FCC -- Why are so many atoms shown in the lattice?
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Undergrad High energy beta particles (6 to 22 MeV)
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Undergrad What happens to the electrons in a Bose-Einstein Condensate?
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Undergrad Attosecond chronoscopy - what happens during attosecod-scale delays?
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Undergrad What happens to atoms in far detuned states?
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Undergrad Less known electric/magnetic interactions with light
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Undergrad What is the size and shape of single optical photon?
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Undergrad Two-site "tight-binding model"
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Undergrad Entangling atoms in a molecule
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Undergrad Is the current density operator derived from fundamental considerations?
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Undergrad Ramsey spectroscopy and spin echoes
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Undergrad How does detuned laser frequency affect atomic dipole forces?
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Undergrad Confused about spontaneous emission
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Undergrad Probe absorption and dressed states
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Undergrad Confused about dressed states of atom
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Undergrad The sum of S and L quantum numbers
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Undergrad Can Quantum Entanglement Enhance Atomic Measurement Accuracy?
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Undergrad Molecules when Born-Oppenheimer approximation doesn't work
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Undergrad Energy of donor or acceptor levels in semiconductors
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Undergrad How does the interatomic spacing of alloys differ from that of pure crystals?
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Undergrad Changes in angular momentum for ro-vibrational transitions
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Undergrad Discover SiGe Alloy: Energy Band Diagram & Info
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Undergrad Fermi level change in semiconductors
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Undergrad Electron angular momentum in diatomic molecules
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Undergrad What kx/ky Values Are Used for Graphene Band Structure Plots?
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Undergrad Obtain the Density of State using the Green function
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Undergrad Recombination and open-circuit voltage in solar cells
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