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pro vyhledávání: '"TONCHEV, A. P."'
We derive exact results for the critical Casimir force (CCF) within the Nagle-Kardar model with periodic boundary conditions (PBC's). The model represents one-dimensional Ising chain with long-range equivalent-neighbor ferromagnetic interactions of s
Externí odkaz:
http://arxiv.org/abs/2404.18324
Autor:
Tonchev, Hristo, Danev, Petar
In our previous works, we have studied quantum random walk search algorithm on hypercube, with traversing coin constructed by using generalized Householder reflection and a phase multiplier. When the same phases are used each iteration, the algorithm
Externí odkaz:
http://arxiv.org/abs/2404.05084
Autor:
Dantchev, Daniel, Tonchev, Nicholay
Fluctuations exist in any material object $A$. If $A$ has non-zero temperature $T$, one speaks about thermal fluctuations. If $A$ is at very low $T$, the fluctuations are of quantum origin. Interesting effects appear if two bodies $A$ and $B$ are sep
Externí odkaz:
http://arxiv.org/abs/2403.17109
Autor:
Rukavina, Sanja, Tonchev, Vladimir D.
The parameters 2-(36,15,6) are the smallest parameters of symmetric designs for which a complete classification up to isomorphism is yet unknown. Bouyukliev, Fack and Winne classified all 2-$(36,15,6)$ designs that admit an automorphism of odd prime
Externí odkaz:
http://arxiv.org/abs/2403.03381
A maximal arc of degree k in a finite projective plane P of order q = ks is a set of (q-s+1)k points that meets every line of P in either k or 0 points. The collection of the nonempty intersections of a maximal arc with the lines of P is a resolvable
Externí odkaz:
http://arxiv.org/abs/2403.03189
Publikováno v:
Annals of Physics 464 (2024) 169647
Attention in the literature has increasingly turned to the issue of the dependence on ensemble and boundary conditions of fluctuation-induced forces. We have recently investigated this problem in the one-dimensional Ising model with periodic and anti
Externí odkaz:
http://arxiv.org/abs/2402.04459
Autor:
Tonchev, Hristo, Danev, Petar
In this work we study five Grovers algorithm modifications, where each iteration is constructed by two generalized Householder reflections, against inaccuracies in the phases. By using semi-empirical methods, we investigate various characteristics of
Externí odkaz:
http://arxiv.org/abs/2401.03602
New examples of self-dual near-extremal ternary codes of length 48 derived from 2-(47,23,11) designs
Autor:
Rukavina, Sanja, Tonchev, Vladimir D.
In a recent paper [M. Araya, M. Harada, Some restrictions on the weight enumerators of near-extremal ternary self-dual codes and quaternary Hermitian self-dual codes, Des. Codes Cryptogr., 91 (2023), 1813--1843], Araya and Harada gave examples of sel
Externí odkaz:
http://arxiv.org/abs/2310.18796
Autor:
Tonchev, Hristo, Bahtev, Rosen
In this work, we study interception attacks against a secret sharing protocol based on Grovers search algorithm. Unlike previous works that only give the algorithm for two and three participants, we have generalized the algorithm for any number of pa
Externí odkaz:
http://arxiv.org/abs/2310.02136
Publikováno v:
Journal of Biomedical & Clinical Research, Vol 17, Iss 2, Pp 187-196 (2024)
This study aimed to determine the frequency of available complications in patients with liver cirrhosis and any dependence according to the Child-Pough score. A retrospective study of cases with newly diagnosed liver cirrhosis was conducted in the Ga
Externí odkaz:
https://doaj.org/article/95698983e28e48f8a7e51d560cc198bf
