Results 41 to 50 of about 2,000 (208)

Combined Dielectric-Constant Gas Thermometry and Expansion Experiments - Virial Coefficients of Argon

open access: yes, 2022
In this thesis, the capabilities arising from a combination of Dielectric-Constant Gas Thermometry (DCGT) with two expansion methods are investigated regarding the determination of real gas properties.
Günz, Christian
core   +1 more source

Comparison of DeePMD, MTP, GAP, ACE and MACE Machine‐Learned Potentials for Radiation‐Damage Simulations: A User Perspective

open access: yesAdvanced Intelligent Discovery, EarlyView.
The authors evaluated six machine‐learned interatomic potentials for simulating threshold displacement energies and tritium diffusion in LiAlO2 essential for tritium production. Trained on the same density functional theory data and benchmarked against traditional models for accuracy, stability, displacement energies, and cost, Moment Tensor Potential ...
Ankit Roy   +8 more
wiley   +1 more source

The Virial Expansion of the Hydrogen Equation of State in Comparison to PIMC Simulations: The Quasiparticle Concept, IPD, and Ionization Degree

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT The properties of plasmas in the low‐density limit are described by virial expansions. Analytical expressions are known for the lowest virial coefficients from Green's function approaches. Recently, accurate path‐integral Monte Carlo (PIMC) simulations were performed for the hydrogen plasma at low densities by Filinov and Bonitz (Phys. Rev.
Gerd Röpke   +3 more
wiley   +1 more source

Scale Invariance in the Lowest Landau Level

open access: yesComptes Rendus. Physique, 2023
We show that the discrete set of pair amplitudes $A_m$ introduced by Haldane are an angular-momentum resolved generalization of the Tan two-body contact, which parametrizes universal short-range correlations in atomic quantum gases.
Hofmann, Johannes, Zwerger, Wilhelm
doaj   +1 more source

Generalized Beth–Uhlenbeck Entropy Formula From the Φ‐Derivable Approach

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT We derive a generalized Beth–Uhlenbeck formula for the entropy of a dense fermion system with strong two‐particle correlations, including scattering states and bound states. We work within the Φ‐derivable approach to the thermodynamic potential.
David Blaschke, Gerd Röpke, Gordon Baym
wiley   +1 more source

The neutrino response of low-density neutron matter from the virial expansion

open access: yes, 2006
We generalize our virial approach to study spin-polarized neutron matter and the consistent neutrino response at low densities. In the long-wavelength limit, the virial expansion makes model-independent predictions for the density and spin response ...
Schwenk, A., Horowitz, C.J.
core   +1 more source

Crystal Engineering of Chelating Hybrid Ultramicroporous Materials via Pillar Modulation for Energy‐Efficient Acetylene Separation

open access: yesSmall, EarlyView.
A new chelating hybrid ultramicroporous material platform is developed using anion modulation to fine‐tune pore chemistry and binding environments, enabling selective C2H2 capture over CO2. One of them, NbOFFIVE‐enmepy‐Zn, exhibits multiple binding interactions for C2H2 vs.
Asif Raza   +9 more
wiley   +1 more source

Virial expansion for a strongly correlated Fermi gas with imbalanced spin populations

open access: yes, 2010
Quantum virial expansion provides an ideal tool to investigate the high-temperature properties of a strongly correlated Fermi gas. Here, we construct the virial expansion in the presence of spin-population imbalance.
Xiaji Liu (18925048), Hui Hu (18925057)
core   +1 more source

A New Piecewise EOS for Compressibility Factor Prediction Based on the M-factor Theory [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2010
In this study for the first time a new description of compressibility factor is rendered based on the virial expansion. The compressibility factor as a function of M-factor is qualitatively and quantitatively expressed.
Rasool Mohammadikhah   +2 more
doaj  

Virial expansion with Feynman diagrams [PDF]

open access: yesPhysical Review A, 2011
We present a field theoretic method for the calculation of the second and third virial coefficients b2 and b3 of 2-species fermions interacting via a contact interaction. The method is mostly analytic. We find a closed expression for b3 in terms of the 2 and 3-body T-matrices.
openaire   +2 more sources

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