Zobrazeno 1 - 10
of 253
pro vyhledávání: '"Kim, Seyong"'
To achieve high performance without substantial overheads associated with channel state information (CSI) of ground users, we consider a fixed-beam precoding approach, where a satellite forms multiple fixed-beams without relying on CSI, then select a
Externí odkaz:
http://arxiv.org/abs/2407.10461
Autor:
Kim, Seyong, Rothkopf, Alexander
We construct a discrete non-hermitean momentum operator, which implements faithfully the non self-adjoint nature of momentum for a particle in a box. Its eigenfunctions are strictly limited to the interior of the box in the continuum limit, with the
Externí odkaz:
http://arxiv.org/abs/2403.13558
Autor:
Kim, Seyong, Laine, M.
Publikováno v:
JCAP 05 (2023) 003
Recently it has been questioned, notably in the context of the scalar singlet dark matter model with $m_\varphi^{ }\simeq 60$ GeV, how efficiently kinetic equilibrium is maintained if freeze-out dynamics is pushed down to low temperatures by resonant
Externí odkaz:
http://arxiv.org/abs/2302.05129
Autor:
Allton, Chris, Aarts, Gert, Bignell, Ryan, Burns, Tim, Chaves, Sergio, Hands, Simon, Jäger, Benjamin, Kim, Seyong, Lombardo, Maria Paola, Page, Ben, Ryan, Sinéad M., Skullerud, Jon-Ivar, Spriggs, Thomas
Publikováno v:
PoS(LATTICE2022)198
The FASTSUM Collaboration has developed a comprehensive research programme in thermal QCD using 2+1 flavour, anisotropic ensembles. In this talk, we summarise some of our recent results including thermal hadron spectrum calculations using our ``Gener
Externí odkaz:
http://arxiv.org/abs/2301.10282
We report progress in the calculation of the thermal interquark potential of bottomonium using the HAL QCD method applied to bottom quarks in the non-relativistic approximation (i.e. NRQCD). We exploit the fast Fourier transform algorithm, using a mo
Externí odkaz:
http://arxiv.org/abs/2301.03320
We present the latest results from the use of the Backus-Gilbert method for reconstructing the spectra of NRQCD bottomonium mesons using anisotropic FASTSUM ensembles at non-zero temperature. We focus in particular on results from the $\eta_b$, $\Ups
Externí odkaz:
http://arxiv.org/abs/2212.12016
Autor:
Skullerud, Jon-Ivar, Aarts, Gert, Allton, Chris, Anwar, M. Naeem, Bignell, Ryan, Burns, Tim, García-Mascaraque, Sergio Chaves, Hands, Simon, D'Arcy, Rachel Horohan, Jäger, Benjamin, Kim, Seyong, Lombardo, Maria Paola, Murphy, Eoghan, Offler, Sam, Page, Ben, Ryan, Sinéad M., Spriggs, Thomas, Stasiak, Dawid, Ziegler, Felix P. G.
We present the most recent results from the FASTSUM collaboration for hadron properties at high temperature. This includes the temperature dependence of the light and charmed meson and baryon spectrum, as well as properties of heavy quarkonia. The re
Externí odkaz:
http://arxiv.org/abs/2211.13717
The infamous sign problem makes it impossible to probe dense (baryon density $\mu_B>0$) QCD at temperatures near or below the deconfinement threshold. As a workaround, one can explore QCD-like theories such as two-colour QCD (QC2D) which don't suffer
Externí odkaz:
http://arxiv.org/abs/2210.07731
Autor:
Aarts, Gert, Allton, Chris, Bignell, Ryan, Burns, Timothy J., García-Mascaraque, Sergio Chaves, Hands, Simon, Jäger, Benjamin, Kim, Seyong, Ryan, Sinéad M., Skullerud, Jon-Ivar
We study what happens to D and D_s mesons as the temperature increases, using lattice QCD simulations with N_f=2+1 dynamical flavours on anistropic lattices. We have access to five temperatures in the hadronic phase. Using the determined groundstate
Externí odkaz:
http://arxiv.org/abs/2209.14681
We report our preliminary progress in the calculation of the interquark potential of bottomonium at non-zero temperature using the HAL QCD method. We use NRQCD correlation functions of non-local mesonic S-wave states to obtain the central potential a
Externí odkaz:
http://arxiv.org/abs/2112.09092