J Jurkiewicz
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Explore the profile of J Jurkiewicz including associated specialties, affiliations and a list of published articles.
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60
Citations
46
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Recent Articles
1.
Ambjorn J, Drogosz Z, Gizbert-Studnicki J, Gorlich A, Jurkiewicz J, Nemeth D
Phys Rev Lett
. 2021 Nov;
127(16):161301.
PMID: 34723576
Using Monte Carlo computer simulations, we study the impact of matter fields on the geometry of a typical quantum universe in the causal dynamical triangulations (cdt) model of lattice quantum...
2.
Ambjorn J, Gizbert-Studnicki J, Gorlich A, Jurkiewicz J, Klitgaard N, Loll R
Eur Phys J C Part Fields
. 2017 Mar;
77(3):152.
PMID: 28344506
The approach of Causal Dynamical Triangulations (CDT), a candidate theory of nonperturbative quantum gravity in 4D, turns out to have a rich phase structure. We investigate the recently discovered bifurcation...
3.
Evaluation of volumetric changes in differential diagnosis of brain atrophy and active hydrocephalus
Szczepek E, Czerwosz L, Nowinski K, Jurkiewicz J, Czernicki Z
Adv Exp Med Biol
. 2014 Oct;
840:59-67.
PMID: 25310958
Despite a variety of diagnostic methods, differentiation of symptoms of normal pressure hydrocephalus from those of atrophic processes of the brain is still a difficult task. In the present study...
4.
Ambjorn J, Jordan S, Jurkiewicz J, Loll R
Phys Rev Lett
. 2011 Dec;
107(21):211303.
PMID: 22181870
Causal dynamical triangulations are a concrete attempt to define a nonperturbative path integral for quantum gravity. We present strong evidence that the lattice theory has a second-order phase transition line,...
5.
Czerwosz L, Szczepek E, Blaszczyk J, Sokolowska B, Dmitruk K, Dudzinski K, et al.
Eur J Med Res
. 2010 Feb;
14 Suppl 4:53-8.
PMID: 20156726
Poor postural balance is one of the major risk factors for falling in normal pressure hydrocephalus (NPH). Postural instability in the clinic is commonly assessed based upon force platform posturography....
6.
Czerwosz L, Szczepek E, Sokolowska B, Jozwik A, Dudzinski K, Jurkiewicz J, et al.
J Physiol Pharmacol
. 2009 Feb;
59 Suppl 6:201-7.
PMID: 19218644
Gait and body balance disturbances are important clinical problems in patients with normal pressure hydrocephalus (NPH). They affect patients' locomotion and lead to a higher risk of falls. The gait...
7.
Ambjorn J, Gorlich A, Jurkiewicz J, Loll R
Phys Rev Lett
. 2008 Mar;
100(9):091304.
PMID: 18352693
We show that the quantum universe emerging from a nonperturbative, Lorentzian sum over geometries can be described with a high accuracy by a four-dimensional de Sitter spacetime. By a scaling...
8.
Ambjorn J, Jurkiewicz J, Loll R
Phys Rev Lett
. 2005 Dec;
95(17):171301.
PMID: 16383815
We measure the spectral dimension of universes emerging from nonperturbative quantum gravity, defined through state sums of causal triangulated geometries. While four dimensional on large scales, the quantum universe appears...
9.
Bialas P, Burda Z, Jurkiewicz J, Krzywicki A
Phys Rev E Stat Nonlin Soft Matter Phys
. 2005 Oct;
67(6 Pt 2):066106.
PMID: 16241303
A geometry of networks endowed with a causal structure is discussed using the conventional framework of the equilibrium statistical mechanics. The popular growing network models appear as particular causal models....
10.
Ambjorn J, Jurkiewicz J, Loll R
Phys Rev Lett
. 2004 Nov;
93(13):131301.
PMID: 15524700
Causal Dynamical Triangulations in four dimensions provide a background-independent definition of the sum over geometries in nonperturbative quantum gravity, with a positive cosmological constant. We present evidence that a macroscopic...