Zobrazeno 1 - 10
of 42
pro vyhledávání: '"M F, Rivas"'
Publikováno v:
Physical Review Research, Vol 1, Iss 3, p 033044 (2019)
There is a remarkable interest in the study of out-of-time ordered correlators (OTOCs) that goes from many-body theory and high-energy physics to quantum chaos. In the latter case there is a special focus on the comparison with the traditional measur
Externí odkaz:
https://doaj.org/article/ebb3a22364254548b191c11664a1cd93
Publikováno v:
Physical Review E. 102
The out-of-time-order correlator (OTOC) has recently become relevant in different areas where it has been linked to scrambling of quantum information and entanglement. It has also been proposed as a good indicator of quantum complexity. In this sense
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c35a15fab8692de660bc8dadd119884
https://doi.org/10.1103/physreve.102.052133
https://doi.org/10.1103/physreve.102.052133
Publikováno v:
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
By means of studying the evolution equation for the Wigner distributions of quantum dissipative systems we derive the quantum corrections to the classical Liouville dynamics, taking into account the standard quantum friction model. The resulting evol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26fbcb7e3c12f1050822107b44468c4e
https://doi.org/10.1103/physreve.99.042214
https://doi.org/10.1103/physreve.99.042214
Publikováno v:
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
We study the properties of classical and quantum stable structures in a three-dimensional (3D) parameter space corresponding to the dissipative kicked top. This is a model system in quantum and classical chaos that gives a starting point for many bod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee720c4dfea9eb21338d12c601fa5595
https://doi.org/10.1103/physreve.99.012214
https://doi.org/10.1103/physreve.99.012214
Publikováno v:
Computational Materials Science. 188:110146
This work studies the diffusion of Hydrogen (H) in bcc Fe, containing a high-angle symmetric tilt grain boundary (GB), as a function of both the temperature and the average grain size. For this purpose, we propose a microscopic effective model which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0eb30ce1b7635626e8d72ace41f5a468
https://doi.org/10.1016/j.commatsci.2020.110146
https://doi.org/10.1016/j.commatsci.2020.110146
Publikováno v:
Materials Chemistry and Physics. 162:659-670
We characterize the atomic mobility behavior driven by vacancies, in bcc and fcc Fe-Cr diluted alloys, using a multi-frequency model. We calculate the full set of the Onsager coefficients and the tracer self and solute diffusion coefficients in terms
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b509119f57936127975c1c9b905b5557
https://doi.org/10.1016/j.matchemphys.2015.06.040
https://doi.org/10.1016/j.matchemphys.2015.06.040
Publikováno v:
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
We study a generic and paradigmatic two degrees of freedom system consisting of two coupled perturbed cat maps with different types of dynamics. The Wigner separability entropy (WSE) -- equivalent to the operator space entanglement entropy -- and the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa6b94db5bd63b08a89dec140937babc
https://pubmed.ncbi.nlm.nih.gov/29347316
https://pubmed.ncbi.nlm.nih.gov/29347316
In this work we perform a comparison of atomic diffusion multi-frequency models for h.c.p. lattices. Specifically, in diluted h.c.p. αZr-Nb alloy, we calculate, the tracer self- and impurity diffusion coefficients, with Ghate's eight frequencies mod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::462adbf74806059000b94b5fccfeac7c
https://www.sciencedirect.com/science/article/pii/S0254058417303826
https://www.sciencedirect.com/science/article/pii/S0254058417303826
Publikováno v:
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
In the context of dissipative systems, we show that for any quantum chaotic attractor a corre- sponding classical chaotic attractor can always be found. We provide with a general way to locate them, rooted in the structure of the parameter space (whi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ccfbc384314ab690723460eedd59154
https://journals.aps.org/pre/abstract/10.1103/PhysRevE.95.062202
https://journals.aps.org/pre/abstract/10.1103/PhysRevE.95.062202
Publikováno v:
Physica D: Nonlinear Phenomena. 240:1818-1824
We have studied two complementary decoherence measures purity and fidelity for a generic diffusive noise in two different chaotic systems (the baker and the cat maps). For both quantities, we have found classical structures in quantum mechanics - the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc0f0c149c12fba7854ab29a486f5881
https://doi.org/10.1016/j.physd.2011.08.006
https://doi.org/10.1016/j.physd.2011.08.006