Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Kovacik, Samuel"'
Autor:
Kováčik, Samuel
Two interesting hypotheses about black holes have been proposed. The older one states that microscopic black holes can be accountable for the observed dark matter density. The newer one states that black holes are coupled to the expansion of the univ
Externí odkaz:
http://arxiv.org/abs/2405.13072
In our previous contribution, we introduced a matrix formulation of a three-dimensional quantum space named the fuzzy onion. The novel part of the construction is the radial derivative term, which has been defined to recover the correct continuum lim
Externí odkaz:
http://arxiv.org/abs/2405.12393
The concept of a quantum structure underlying space has been proposed for quite some time, yet it has largely eluded direct observation. There is a prevailing notion that the minuscule effects stemming from quantum space could, under certain astronom
Externí odkaz:
http://arxiv.org/abs/2402.05832
Autor:
Prekrat, Dragan, Ranković, Dragana, Todorović-Vasović, Neli Kristina, Kováčik, Samuel, Tekel, Juraj
In this contribution, we summarize our recent studies of the phase structure of the Grosse-Wulkenhaar model and its connection to renormalizability. Its action contains a special term that couples the field to the curvature of the noncommutative back
Externí odkaz:
http://arxiv.org/abs/2310.10794
Autor:
Kováčik, Samuel, Tekel, Juraj
We propose a matrix model realisation of a three-dimensional quantum space. It has an onion-like structure composed of concentric fuzzy spheres of increasing radius. The angular part of the Laplace operator is inherited from that of the fuzzy sphere.
Externí odkaz:
http://arxiv.org/abs/2309.00576
Autor:
Kováčik, Samuel
One of the main goals of contemporary theoretical physics is to find the quantum theory of gravity. There are various working hypotheses, mostly operating in the regime of high-energy physics well above the reach of particle accelerators. So far, str
Externí odkaz:
http://arxiv.org/abs/2203.12332
Autor:
Kováčik, Samuel, Tekel, Juraj
Many physical systems can be described in terms of matrix models that we often cannot solve analytically. Fortunately, they can be studied numerically in a straightforward way. Many commonly used algorithms follow the Monte Carlo method, which is eff
Externí odkaz:
http://arxiv.org/abs/2203.05422
Autor:
Kováčik, Samuel
Hawking radiation would make microscopic black holes evaporate rapidly, which excludes them from many astrophysical considerations. However, it has been argued that the quantum nature of space would alter this behaviour: the temperature of a Planck-s
Externí odkaz:
http://arxiv.org/abs/2102.06517
We study the thermal phase transition of the bosonic BMN model which is a mass deformed version of the bosonic part of the BFSS model. Our results connect the massless region of the phase diagram described by the bosonic BFSS model with the large-mas
Externí odkaz:
http://arxiv.org/abs/2004.05820
We study the confining/deconfining phase transition in the mass deformed Yang-Mills matrix model which is obtained by the dimensional reduction of the bosonic sector of the four-dimensional maximally supersymmetric Yang-Mills theory compactified on t
Externí odkaz:
http://arxiv.org/abs/2001.03749