Zobrazeno 1 - 10
of 8 717
pro vyhledávání: '"Dimopoulos P."'
Publikováno v:
EPJ Web of Conferences, Vol 296, p 06007 (2024)
Using simulations at multiple imaginary chemical potentials for (2 + 1)-flavor QCD, we construct multi-point Padé approximants. We determine the singularties of the Padé approximants and demonstrate that they are consistent with the expected univer
Externí odkaz:
https://doaj.org/article/80cea17861234f62babbc5b5f663cf66
In this paper we do three things. First, we outline the conditions under which the interaction rate of inelastic processes that change the internal state of a system of $N$ targets scales as $N^2$. This is an effect distinct from coherent elastic sca
Externí odkaz:
http://arxiv.org/abs/2408.04021
Reprocessed X-ray radiation from active galactic nuclei (AGN) carries important information about the properties of the circumnuclear material around the black hole. The X-ray photons travel from the very center of the system and interact with that m
Externí odkaz:
http://arxiv.org/abs/2407.18312
Autor:
Clarke, David A., Dimopoulos, Petros, Di Renzo, Francesco, Goswami, Jishnu, Schmidt, Christian, Singh, Simran, Zambello, Kevin
Using the multi-point Pad\'e approach, we locate Lee-Yang edge singularities of the QCD pressure in the complex baryon chemical potential plane. These singularities are extracted from singularities in the net baryon-number density calculated in $N_f=
Externí odkaz:
http://arxiv.org/abs/2405.10196
We investigate two classes of inflationary models, which lead to a stiff period after inflation that boosts the signal of primordial gravitational waves (GWs). In both families of models studied, we consider an oscillating scalar condensate, which wh
Externí odkaz:
http://arxiv.org/abs/2405.01679
Autor:
Dimopoulos, Konstantinos
We briefly discuss cosmic inflation, which is the dominant paradigm for the generation of the large scale structure in the Universe and also for arranging for the initial conditions of the hot Big Bang. We then present quintessential inflation, which
Externí odkaz:
http://arxiv.org/abs/2402.19086
Autor:
Di Renzo, F., Clarke, D. A., Dimopoulos, P., Goswami, J., Schmidt, C., Singh, S., Zambello, K.
Publikováno v:
PoS LATTICE2023 (2024) 169
The Bielefeld Parma Collaboration has in recent years put forward a method to probe finite density QCD by the detection of Lee-Yang singularities. The location of the latter is obtained by multi-point Pad\`e approximants, which are in turn calculated
Externí odkaz:
http://arxiv.org/abs/2401.09619
Autor:
Clarke, D. A., Dimopoulos, P., Di Renzo, F., Goswami, J., Schmidt, C., Singh, S., Zambello, K.
Publikováno v:
PoS LATTICE2023 (2024) 168
Using $N_f=2+1$ QCD calculations at physical quark mass and purely imaginary baryon chemical potential, we locate Lee-Yang edge singularities in the complex chemical potential plane. These singularities have been obtained by the multi-point Pad\'e ap
Externí odkaz:
http://arxiv.org/abs/2401.08820
Autor:
Schmidt, Christian, Clarke, David A., Dimopoulos, Petros, Di Renzo, Francesco, Goswami, Jishnu, Singh, Simran, Skokov, Vladimir V., Zambello, Kevin
Publikováno v:
PoS LATTICE2023 (2024) 167
We discuss the scaling of the Yang-Lee singularity (YLs) and show how the universal scaling can be used to locate phase transitions in QCD. We describe two complementary methods to extract the location of the Yang-Lee singularity from lattice QCD dat
Externí odkaz:
http://arxiv.org/abs/2401.07790
Autor:
Díaz, José Jaime Terente, Dimopoulos, Konstantinos, Karčiauskas, Mindaugas, Racioppi, Antonio
Publikováno v:
JCAP02(2024)040
Quintessence models have been widely examined in the context of scalar-Gauss-Bonnet gravity, a subclass of Horndeski's theory, and were proposed as viable candidates for Dark Energy. However, the relatively recent observational constraints on the spe
Externí odkaz:
http://arxiv.org/abs/2310.08128