Zobrazeno 1 - 10
of 168
pro vyhledávání: '"Ferenc Iglói"'
Autor:
Ferenc Iglói, Yu-Cheng Lin
Publikováno v:
Entropy, Vol 26, Iss 8, p 709 (2024)
We apply a real-space block renormalization group approach to study the critical properties of the random transverse-field Ising spin chain with multispin interactions. First, we recover the known properties of the traditional model with two-spin int
Externí odkaz:
https://doaj.org/article/3cf7a7c37ab24b7d9eef9a0241f1616b
Autor:
István A. Kovács, Ferenc Iglói
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-10 (2022)
Abstract In many-body systems with quenched disorder, dynamical observables can be singular not only at the critical point, but in an extended region of the paramagnetic phase as well. These Griffiths singularities are due to rare regions, which are
Externí odkaz:
https://doaj.org/article/2a11e5d619374ff6a2c2cfabafd698a2
Autor:
Ferenc Iglói, Géza Tóth
Publikováno v:
Physical Review Research, Vol 5, Iss 1, p 013158 (2023)
We use entanglement witnesses to detect entanglement in the XY chain in thermal equilibrium and determine the temperature bound below which the state is detected as entangled. We consider the entanglement witness based on the Hamiltonian. Such a witn
Externí odkaz:
https://doaj.org/article/d4db030320b54bf0b31b901588f80bfb
Publikováno v:
Physical Review Research, Vol 3, Iss 3, p 033140 (2021)
In random quantum magnets, like the random transverse Ising chain, low energy excitations are localized in rare regions and there are only weak correlations between them. It is an open question whether these correlations are relevant in the sense of
Externí odkaz:
https://doaj.org/article/927900e81705497daa76069505163af9
Publikováno v:
New Journal of Physics, Vol 19, Iss 2, p 023055 (2017)
By means of free fermionic techniques combined with multiple precision arithmetic we study the time evolution of the average magnetization, $\overline{m}(t)$ , of the random transverse-field Ising chain after global quenches. We observe different rel
Externí odkaz:
https://doaj.org/article/16a9b61202b74e1dba804be3ceb03dbd
Publikováno v:
New Journal of Physics, Vol 15, Iss 2, p 023036 (2013)
We study the non-equilibrium dynamics of a quasiperiodic quantum Ising chain after a sudden change in the strength of the transverse field at zero temperature. In particular, we consider the dynamics of the entanglement entropy and the relaxation of
Externí odkaz:
https://doaj.org/article/b44f3462114248bd81cad0a0b0da3615
Autor:
István Kovács, Ferenc Iglói
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-10 (2022)
Scientific Reports
Scientific Reports
In many-body systems with quenched disorder, dynamical observables can be singular not only at the critical point, but in an extended region of the paramagnetic phase as well. These Griffiths singularities are due to rare regions, which are locally i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce2847db2c24ff7f3b03bc176b730d83
https://doi.org/10.21203/rs.3.rs-1118325/v1
https://doi.org/10.21203/rs.3.rs-1118325/v1
In random quantum magnets, like the random transverse Ising chain, the low energy excitations are localized in rare regions and there are only weak correlations between them. It is a fascinating question whether these correlations are completely irre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::656e716052dbd362930556e85d83c0b7
http://arxiv.org/abs/2103.05459
http://arxiv.org/abs/2103.05459
In photosynthetic organisms, the energy of light during illumination is absorbed by the antenna complexes, which is transmitted by excitons and is either absorbed by the reaction centers (RCs), which have been closed in this way, or emitted by fluore
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a90005f23f55ca660eb486345d04dd01
Publikováno v:
Scientific Reports
Scientific Reports, Vol 10, Iss 1, Pp 1-16 (2020)
Scientific Reports, Vol 10, Iss 1, Pp 1-16 (2020)
Antenna systems serve to absorb light and to transmit excitation energy to the reaction center (RC) in photosynthetic organisms. As the emitted (bacterio)chlorophyll fluorescence competes with the photochemical utilization of the excitation, the meas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::717415809d2db0d7a575ec587a8daaef
http://europepmc.org/articles/PMC7438532
http://europepmc.org/articles/PMC7438532