Machine learning and physical based modeling for cardiac hypertrophy

Autor: Bogdan Milićević, Miljan Milošević, Vladimir Simić, Andrej Preveden, Lazar Velicki, Đorđe Jakovljević, Zoran Bosnić, Matej Pičulin, Bojan Žunkovič, Miloš Kojić, Nenad Filipović

Publikováno v: Heliyon, Vol 9, Iss 6, Pp e16724- (2023)

Background and objective: Predicting the long-term expansion and remodeling of the left ventricle in patients is challenging task but it has the potential to be clinically very useful. Methods: In our study, we present machine learning models based o

Externí odkaz: https://doaj.org/article/3623697cb55743d699402dcdd5abfb8c

Nonequilibrium quantum phase transitions in the XY model: comparison of unitary time evolution and reduced density operator approaches

Autor: Shigeru Ajisaka, Felipe Barra, Bojan Žunkovič

Publikováno v: New Journal of Physics, Vol 16, Iss 3, p 033028 (2014)

We study nonequilibrium quantum phase transitions in the XY spin 1/2 chain using the ${{C}^{*}}$ algebra. We show that the well-known quantum phase transition at a magnetic field of h = 1 also persists in the nonequilibrium setting as long as one of

Externí odkaz: https://doaj.org/article/85b89f2f8452402ba29bc97b7f743422

Deep tensor networks with matrix product operators

Autor: Bojan Žunkovič

Publikováno v: Quantum Machine Intelligence. 4

We introduce deep tensor networks, which are exponentially wide neural networks based on the tensor network representation of the weight matrices. We evaluate the proposed method on the image classification (MNIST, FashionMNIST) and sequence predicti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9364125d6a4bab909f227e2c5b5a89a2
https://doi.org/10.1007/s42484-022-00081-1

Quasilocalized excitations induced by long-range interactions in translationally invariant quantum spin chains

Autor: Bojan Žunkovič, Alessandro Silva, Andrea Gambassi, Alessio Lerose

Publikováno v: Physical Review B

We show that long-range ferromagnetic interactions in quantum spin chains can induce spatial quasi-localization of topological magnetic defects, i.e., domain-walls, even in the absence of quenched disorder. By means of matrix-product-states numerical

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::361a5b7d40510f6a253c5fcd46993026
https://doi.org/10.1103/physrevb.99.121112

Scrambling and entanglement spreading in long-range spin chains

Autor: Rosario Fazio, Bojan Žunkovič, Alessandro Silva, Angelo Russomanno, Silvia Pappalardi, Fernando Iemini

Publikováno v: Physical Review B 98 (2018): 134303. doi:10.1103/PhysRevB.98.134303
info:cnr-pdr/source/autori:Pappalardi S.; Russomanno A.; Zunkovic B.; Iemini F.; Silva A.; Fazio R./titolo:Scrambling and entanglement spreading in long-range spin chains/doi:10.1103%2FPhysRevB.98.134303/rivista:Physical Review B/anno:2018/pagina_da:134303/pagina_a:/intervallo_pagine:134303/volume:98
Physical Review B

We study scrambling in connection to multipartite entanglement dynamics in regular and chaotic long-range spin chains, characterized by a well defined semi-classical limit. For regular dynamics, scrambling and entanglement dynamics are found to be ve

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d1b1ea8f5e5f15e82747ab5e5504efb
http://hdl.handle.net/11588/776988