Results 61 to 70 of about 181,239 (309)

Quenching the Hubbard Model: Comparison of Nonequilibrium Green's Function Methods

Contributions to Plasma Physics, EarlyView.
ABSTRACT We benchmark nonequilibrium Green's function (NEGF) approaches for interaction quenches in the half‐filled Fermi–Hubbard model in one and two dimensions. We compare fully self‐consistent two‐time Kadanoff–Baym equations (KBE), the generalized Kadanoff–Baym ansatz (GKBA), and the recently developed NEGF‐based quantum fluctuations approach (NEGF‐
Jan‐Philip Joost, Christopher Makait, Alexander Osterkorn, Erik Schroedter   +3 more
wiley   +1 more source

Massive Black Hole Formation in Proto-Stellar Clusters via Early Gas Accretion

Particles
In this paper, we review our semi-analytic model of stellar black hole (BH) mass growth via gas accretion in gas-rich stellar clusters during their birthstage within the first ∼10Myr after the first stellar formation event.
Zacharias Roupas
doaj   +1 more source

NO ASTROPHYSICAL DYADOSPHERES [PDF]

The Eleventh Marcel Grossmann Meeting, 2008
64 pages ...
openaire   +2 more sources

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

Contributions 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, Chengliang Lin, W. Ebeling, H. Reinholz   +3 more
wiley   +1 more source

Worldwide Fulltext Usage of Data Astrophysics Data System in 2011

The data contained in these files (one in Excel, the other in JSON format) consists of full text download numbers through the ADS during the year 2011. Every row is a journal, indicated by the journal name and the ADS abbreviation ("bibstem", see: http://
SAO/NASA Astrophysics Data System
core   +2 more sources

The need for ultra high resolution X-ray imaging

Frontiers in Astronomy and Space Sciences
This paper discusses the broad science case for obtaining milliarcsecond to microarcsecond astronomical imaging resolution in the soft to medium-energy X-ray band (∼0.5 to ∼8 keV).
Kimberly A. Weaver, Jenna M. Cann, Jenna M. Cann, Jenna M. Cann, Ryan Pfeifle, Ryan Pfeifle, Ryan Pfeifle, Miranda McCarthy, Miranda McCarthy, Laura D. Vega, Laura D. Vega, Laura D. Vega, Ronald S. Gamble, Ronald S. Gamble, Ronald S. Gamble, Teresa Monsue, Teresa Monsue, Teresa Monsue, Kyla Mullaney, Kyla Mullaney, Kyla Mullaney, Mainak Singha, Mainak Singha, Mainak Singha, Erini Lambrides, Erini Lambrides, Erini Lambrides, Jeffrey McKaig, Jeffrey McKaig, Isabella Carlton, Kelly Whalen, Kelly Whalen, Emma Kleiner, Atul Mohan, Atul Mohan, Subhajeet Karmakar, Subhajeet Karmakar, Ann E. Hornschemeier, Herbert Ortiz, Claudio Ricci, Claudio Ricci, Claudio Ricci, Lynne Valencic, Lynne Valencic, Brandon Coleman, Brandon Coleman, Kaylee DeGennaro, Ruchi Pandey, Ruchi Pandey   +48 more
doaj   +1 more source

Narrating the origin of the universe through music: A case study [PDF]

Zbornik Radova Akademije Umetnosti, 2017
Our project is about the synthesis of a musical piece, based on the timeline of the Universe. We can understand music through visual and gestural analogies.
Mannone Maria, Gkoudina Kyriaki, Tyler Evan   +2 more
doaj  

Astronomy & Astrophysics (CAUCASUS)-VOLUME 1

, 2016
                                                                        ...
(CAUCASUS), Astronomy & Astrophysics
core   +1 more source

Nuclear Astrophysics [PDF]

AIP Conference Proceedings, 1993
The problem of core-collapse supernovae is used to illustrate the many connections between nuclear astrophysics and the problems nuclear physicists study in terrestrial laboratories. Efforts to better understand the collapse and mantle ejection are also motivated by a variety of interdisciplinary issues in nuclear, particle, and astrophysics, including
openaire   +1 more source

Kinetic Contribution to the Arbitrary Order Odd Frequency Moments of the Dynamic Structure Factor

Contributions to Plasma Physics, EarlyView.
ABSTRACT An exact expression is derived for the kinetic contribution to the odd (arbitrary order) frequency moments of the dynamic structure factor via a finite summation that features averages of even (all lower orders) powers of the momentum over the exact momentum distribution.
Panagiotis Tolias, Tobias Dornheim, Jan Vorberger   +2 more
wiley   +1 more source