Results 161 to 170 of about 926,631 (217)

On the Density–Density Correlations of the Non‐Interacting Finite Temperature Electron Gas

Contributions to Plasma Physics, EarlyView.
ABSTRACT The density–density correlations of the non‐interacting finite temperature electron gas are discussed in detail. Starting from the ideal linear density response function and utilizing general relations from linear response theory, known and novel expressions are derived for the pair correlation function, static structure factor, dynamic ...
Panagiotis Tolias, Tobias Dornheim, Jan Vorberger   +2 more
wiley   +1 more source

Local Search and the Evolution of World Models

Topics in Cognitive Science, EarlyView., 2023
Abstract An open question regarding how people develop their models of the world is how new candidates are generated for consideration out of infinitely many possibilities. We discuss the role that evolutionary mechanisms play in this process. Specifically, we argue that when it comes to developing a global world model, innovation is necessarily ...
Neil R. Bramley, Bonan Zhao, Tadeg Quillien, Christopher G. Lucas   +3 more
wiley   +1 more source

Short Wavelength Limit of the Dynamic Matsubara Local Field Correction

Contributions to Plasma Physics, EarlyView.
ABSTRACT We investigate the short wavelength limit of the dynamic Matsubara local field correction G˜q,zl$$ \tilde{G}\left(\mathbf{q},{z}_l\right) $$ of the uniform electron gas based on direct ab initio path integral Monte Carlo (PIMC) results over an unprecedented range of wavenumbers, q≲20qF$$ q\lesssim 20{q}_{\mathrm{F}} $$, where qF$$ {q}_{\mathrm{
Tobias Dornheim, Panagiotis Tolias, Zhandos A. Moldabekov, Jan Vorberger   +3 more
wiley   +1 more source

Quantum Monte Carlo on a Lattice [PDF]

Computers in Physics, 1992
George Batrouni, Harvey Gould, Jan Tobochnik   +2 more
openaire   +2 more sources

Ionization Potential Depression and Fermi Barrier in Warm Dense Matter: A First‐Principles Approach

Contributions to Plasma Physics, EarlyView.
ABSTRACT Ionization potential depression (IPD) is of crucial importance to understand and accurately predict the properties of dense, partially ionized plasmas. Many models of IPD have been developed that, however, exhibit largely varying results. Recently, a novel approach was proposed that is based on first‐principles quantum Monte Carlo simulations ...
Michael Bonitz, Linda Kordts
wiley   +1 more source

Discrete Chiral Ballistic Polariton Laser

Laser &Photonics Reviews, EarlyView.
Planar microcavities in the strong light–matter coupling regime exhibit exciton‐polariton modes with a strong chiral response toward circularly polarized light. This feature is exploited alongside inherent spin‐orbit coupling of cavity light to generate giant discrete optical vortices in polygonal arrays of exciton‐polariton condensates.
Zuzanna Werner, Andrzej Frączak, Valtýr Kári Daníelsson, Jacek Szczytko, Barbara Piętka, Helgi Sigurðsson   +5 more
wiley   +1 more source

Results of a Geant4 benchmarking study for bio‐medical applications, performed with the G4‐Med system

Medical Physics, EarlyView.
Abstract Background Geant4, a Monte Carlo Simulation Toolkit extensively used in bio‐medical physics, is in continuous evolution to include newest research findings to improve its accuracy and to respond to the evolving needs of a very diverse user community.
Pedro Arce, Jay W. Archer, Lorenzo Arsini, Alexander Bagulya, David Bolst, Jeremy M. C. Brown, Barbara Caccia, Andrew Chacon, Giuseppe Antonio Pablo Cirrone, Miguel Antonio Cortés‐Giraldo, Dean Cutajar, Giacomo Cuttone, Paolo Dondero, Andrea Dotti, Bruce Faddegon, Serena Fattori, Christian Fedon, Susanna Guatelli, Akihiro Haga, Sebastien Incerti, Vladimir Ivanchenko, Dmitri Konstantinov, Ioanna Kyriakou, Albert Le, Zhuxin Li, Michel Maire, Alessandra Malaroda, Carlo Mancini‐Terracciano, Alfonso Mantero, Claire Michelet, Giuliana Milluzzo, Francesca Nicolanti, Mihaly Novak, Chihiro Omachi, Luciano Pandola, Jake Harold Pensavalle, Álvaro Perales, Yann Perrot, Giada Petringa, Silvia Pozzi, José Manuel Quesada, José Ramos‐Méndez, Francesco Romano, Anatoly B. Rosenfeld, Mitra Safavi‐Naeini, Dousatsu Sakata, Luis G. Sarmiento, Takashi Sasaki, Yoshihide Sato, Alberto Sciuto, Ioannis Sechopoulos, Edward C. Simpson, Ronny Stanzani, Alessandra Tomal, Toshiyuki Toshito, Hoang Ngoc Tran, Christopher White, Dennis H. Wright   +57 more
wiley   +1 more source

Accuracy of a whole‐body single‐photon emission computed tomography with a thallium‐bromide detector: Verification via Monte Carlo simulations

Medical Physics, EarlyView.
Abstract Background Single‐photon emission computed tomography (SPECT) devices equipped with cadmium–zinc–telluride (CZT) detectors achieve high contrast resolution because of their enhanced energy resolution. Recently, thallium bromide (TlBr) has gained attention as a detector material because of its high atomic number and density.
Toshimune Ito, Keitaro Hitomi, Michael Ljungberg, Sousei Kawasaki, Yuka Katayama, Akane Kato, Hirotatsu Tsuchikame, Kentaro Suzuki, Kyosuke Miyazaki, Ritsushi Mogi   +9 more
wiley   +1 more source

Robust Fourier‐based slanted‐edge method to measure scatter ratio

Medical Physics, EarlyView.
Abstract Background Patient scatter incident on an x‐ray detector reduces radiographic contrast and adds quantum noise, and minimizing scatter is critical in some specialized techniques such as dual‐energy and energy‐subtraction methods. Existing methods to measure scatter are either labor‐intensive (multiple disks) or not appropriate to use in ...
Lisa M. Garland, Ian A. Cunningham
wiley   +1 more source

Artificial Intelligence Enabled Biomineralization for Eco‐Friendly Nanomaterial Synthesis: Charting Future Trends

Nano Select, EarlyView.
Nanoparticles have vast applications in medicine and technology, but synthesizing them with precise properties is challenging. This review highlights how artificial intelligence (AI) can optimize nanoparticle synthesis. It highlights the use of AI to improve nanoparticle production, citing successful examples like AI models enhancing carbon nanotube ...
Vaisali Chandrasekar, Anu Jayanthi Panicker, Ajay Vikram Singh, Jolly Bhadra, Kishor Kumar Sadasivuni, Omar M. Aboumarzouk, Abdulla Al Ansari, Sarada Prasad Dakua   +7 more
wiley   +1 more source