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.
A Electrical & thermal conductivities
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A Error signal when locking a cavity
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I What do the Roman Numerals mean in Spectroscopic Data?
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A Quantum projection when measuring state population
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A Weird beam behavior in a cavity
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A Description of in-band relaxation?
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A Unknown large linewidth of the fringes of a cavity
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A Experiments for temperature dependence of persistent supercurrent?
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I Electron transitions within the same excited state?
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A Understand Electronic Dispersion: Definition & Examples
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I Is a phonon a quasiparticle or a collective excitation?
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I Trying to better understand temperature and entropy
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I Polarization in Rabi oscillations
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B Can you create neutronium by colliding electrons and protons?
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I Can Superconductors Reach Relativistic Speeds and Emit Synchrotron Photons?
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A AC Stark shift in diatomic molecules
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A How can I overcome alignment issues with a bow-tie cavity?
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A Question about bow-tie cavities
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I Questions about Curie Temperature Characteristics
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I Superconductors and moving/accelerating charges
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A Dressed states for a 3 level system
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A BCS theory of superconductivity and eternal supercurrents?
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A Experimental Semiconductor Bandgap Databases
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I Absorption and emission spectroscopy of atoms
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A Which one of the GGA or G0W0 calculations is more accurate?
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I What actually is the free energy? Why is it useful?
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A Selection rule for spectra with circular polarization
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P-n junction diodes (Both bias)
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I Ion Ablation Target Experiment: Estimating Energy Spread
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A How to interpret this equation in Szabo & Ostlund's book
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I have a question about the mathematical model of a reflective curve
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I Hartree-Fock / Szabo & Ostlund book
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B Something strange about doping semiconductors
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XRD Scherrer Equation -- need explanation
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I Bragg condition and Bloch states
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Interpreting UV absorption spectra
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I Transition Dipole Moments for Strontium
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A Probability of resonant ionization
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Indirect and direct band gaps in silicon
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B What is the focus of Atkins' popular textbook in physical chemistry?
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I Calculating the specific heat capacity for the 2D Ising model
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I Numerical Calculation of Hamiltonian Overlaps
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I What determines the time between atomic absorption and emission of photons?
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A Fourier Transform MW spectroscopy in a FB cavity
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I Derivation of Voigt's Shear Modulus
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A How Can You Identify Perovskite in Solar Cells Without Advanced Lab Techniques?
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A How Do Measurements and Excitation Wavelengths Affect Single NV Center Analysis?
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A Vibrations in a bow-tie cavity
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A Ray Tracing Simulator: Simulating Gaussian Beam in Bow Tie Cavity
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I Wave in phonon as "forward and backward" movement vs temperature
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I Isotope measurements in molecules
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I How Small Can a Transistor Be and Still Work Reliably?
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I Can resonance be used to split a molecule of CO2?
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A Magnetic sublevels of a random atom
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I Vanadium oxide oxidation states binding energy -- unequal spacing
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A Laser signal input for PDH lock
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A Accounting for Astigmatism in Bow Tie Cavity: Finding the Optimal Cavity Length
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A Surface impedance equation for resonators
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I Space Group Symmetry: What is F d3m Spinel Structure?
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I Capping layer in semiconductor quantum dot fabrication
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I Magnetization inside a diamagnetic material antiparallel to ##B_{ext}##
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A A good quantum number for Cnv symmetry?
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I Broken symmetry in ferromagnetism
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A How to simulate an isotope shift measurement
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A Centrifugal distortion of a diatomic molecule
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A Question about an equation from anapole measurement paper
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A "Cross-section" and "half-life" of excited states
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A Question about a measured spectra
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I What makes cobalt oxide (co3o4) a magnetic material?
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I What are thermal fluctuations?
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I Survivability in 1 psi zone: How screwed am I?
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I Optimizing PID Parameters for Laser Servo Locking
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A How to slow down a high energy neutral molecular beam
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I Diatomic molecules containing potassium
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A Integrating the Stokeslet: Solving Expression 7 from ResearchGate Publication
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B How does the hydrogen line spectrum work with only one orbit?
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A Cubic and monolayer difference
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A Calculation of dipole and quadrupole momentum of CO
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B Assistance finding the nuclear energy difference during nuclear fusion
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A Power induced shift in rotational transitions for a diatomic molecule
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A Numerical Hartree Fock with Finite Difference Matrices for Helium
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A Order parameter, symmetry breaking Landau style
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I Spin and wavefunction of excitons
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A Bloch momentum-space wave functions
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I Combination differences with spin
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I Is the Spin-Rotation Constant Always Positive in Diatomic Molecules?
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I Can Ablation of Materials Neutralize In-Flight Atomic Beams?
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A Einstein's coefficients recoil effect
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A The main charge carrier in the ionic crystal is polaron or conduction?
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B Field distribution in semiconductors
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I Question about Electronic Band Structure
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I What Keeps the Electrons and Ions Mixed in a White Dwarf?
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A Can a Solid Vibrate at Debye Max Frequency?
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I Action of a symmetry operation on a Bloch state
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A Is the Universe neutrally charged?
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A Quantum computing with superconductors
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A Lennard-Jones for bound/unbound atoms?
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I How Do Ashcroft and Mermin Derive the Conversion from Equation 22.6 to 22.9?
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A Ground state of the one-dimensional spin-1/2 Ising model
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A Why low temperature is better in many precision experiments?
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