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 Question about chiral molecules
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I Why X-ray scattering in crystalline solids is elastic?
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I Theory of fluctuations in disordered systems
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A Define spin operators for numerical groundstate obtained by ED
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I What are the 230 space groups in solid state physics?
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I Question about the Bohr model of atom and and electron in an orbital
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A How Can Molecular Beams Be Slowed and Neutralized for MOT Trapping?
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I A problem with a figure related to band theory
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A Experiments with diatomic molecules
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A Mode Matching a Cavity: Best Practices Explained
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B Electrostatic charge build up in environmental electron microscopy
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A Interatomic distance in diatomic molecules
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A New model for superconductivity
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B Are BEC vortex lattices individual atoms?
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A Vibrations in building a cavity
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A Can Quantum Logic Techniques Be Applied to Complex Molecular Ions?
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I Quantum logic spectroscopy in a quadrupole trap
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B Fusing Neutrons: Can It Lead to Cold Fusion?
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I Sp3 hybridization azimuthal quantum number
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I Another question from Ashcroft and Mermin: Fermi-Dirac Distribution
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I Topological question from Ashcroft-Mermin
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Cooper pairs in a band diagram
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A Phase diagram of Carbon at large electric fields.
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A Does strain affect on-site energy?
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B Why are absorption spectra continuous?
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I Argon or Dry N2 for venting a small Ultra High Vacuum chamber
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A Solve Troesch's Equation: Numerical Technique & Derivation
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A Question about aligning a cavity
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A Measuring new forces with molecular vibrations
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I Vibrational cooling of a molecule
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A Berry phase in condensed matter
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A A question about T-matrix in two-body scattering
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I Question about a Servo setup (locking a laser to a cavity)
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I How Is the Dynamical Matrix Used to Calculate the Phonon Spectrum of Graphene?
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I Laser cooling in a Penning trap
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I Are permittivity and permeability quantities that can be predicted?
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I Dipole moment of Rydberg states
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I Has the Fermi-Dirac Integral been solved?
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I Effective molecular Hamiltonian and Hund cases
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I How to measure a 10 Hz energy splitting of two energy levels
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I Defect concentration formula w/o Stirling approximation
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I Valence and conduction bands in five band Hamiltonian
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I What is the relation between scattering and mobility in solid state physics?
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A Typical binding energies of sigma-orbitals
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A What Superconductor Can Have The Highest Magnetic Field Strength?
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A Rippling Graphene Harvests Thermal Energy?
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I Smallest energy we can measure
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A Search for CPT violation with protons/antiprotons using quantum logic
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I Can Having Electrons in Energy Levels Indicate Ionisation of Atoms?
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I What Happens to Energy When Phonons are Damped?
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I Nuclear size effect on isotope shift
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A 1D transverse-field Ising model - classical vs quantum differences?
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I Spin-Orbit Coupling & Isotope Shift
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I A large normal atom, but with a muon in its outer shell?
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A High-energy tail of H electron momentum distribution? 1/p^6?
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I How do Cooper pairs carry a current with zero net-momentum?
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Silicon FCC -- Why are so many atoms shown in the lattice?
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A About pair production using light
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A Properties of Degenerate Electron Gas
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A The difference between the binding of molecules and superconductors
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I High energy beta particles (6 to 22 MeV)
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I What happens to the electrons in a Bose-Einstein Condensate?
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I Attosecond chronoscopy - what happens during attosecod-scale delays?
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I What happens to atoms in far detuned states?
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I Less known electric/magnetic interactions with light
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I What is the size and shape of single optical photon?
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A Ising model open chain and periodic boundary conditions
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I Two-site "tight-binding model"
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A Wannier function in tight-binding model
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A Superconductor ring: shielding currents in different directions
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I Entangling atoms in a molecule
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I Is the current density operator derived from fundamental considerations?
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I Ramsey spectroscopy and spin echoes
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I How does detuned laser frequency affect atomic dipole forces?
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I Confused about spontaneous emission
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I Probe absorption and dressed states
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I Confused about dressed states of atom
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I The sum of S and L quantum numbers
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A What Are Examples of Exotic Order-Disorder Phase Transitions?
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A Superconductor in a hollow cylinder -- two different end states. Why?
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A All-atom simulation and coarse-grained simulations
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B Missing mass in atomic systems
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B Understanding Crystal Structures: Energy Considerations
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A Crystal structures and number of bonds of each atom
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A The most striking example of vacuum fluctuations affecting experiments
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I Can Quantum Entanglement Enhance Atomic Measurement Accuracy?
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A Why Do Voids Form at the Thin-Film Substrate Interface After Annealing?
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I Molecules when Born-Oppenheimer approximation doesn't work
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I Energy of donor or acceptor levels in semiconductors
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I How does the interatomic spacing of alloys differ from that of pure crystals?
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I Changes in angular momentum for ro-vibrational transitions
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I Discover SiGe Alloy: Energy Band Diagram & Info
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A Why Do We Need Alchemical Methods to Compute Gibbs Energy Changes?
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I Fermi level change in semiconductors
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Energy of valence electrons from period of the periodic table
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I Electron angular momentum in diatomic molecules
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I What kx/ky Values Are Used for Graphene Band Structure Plots?
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I Recombination and open-circuit voltage in solar cells
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I Understanding the AC Stark Shift Effect in Laser-Atom Interactions
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A Why do Eu doped phosphors show fluorescence property without singlet?
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