Real-Time Dynamics of Typical and Untypical States in Non-Integrable Systems [PDF]
Phys. Rev. B 97, 174430 (2018), 2018 For a class of typical states, the real-time and real-space dynamics of non-equilibrium density profiles has been recently studied for integrable models, i.e. the spin-1/2 XXZ chain [PRB 95, 035155 (2017)] and the Fermi-Hubbard chain [PRE 96, 020105 (2017)].
arxiv +1 more source
Exponential damping induced by random and realistic perturbations [PDF]
Phys. Rev. E 101, 062133 (2020), 2019 Given a quantum many-body system and the expectation-value dynamics of some operator, we study how this reference dynamics is altered due to a perturbation of the system's Hamiltonian. Based on projection operator techniques, we unveil that if the perturbation exhibits a random-matrix structure in the eigenbasis of the unperturbed Hamiltonian, then ...
arxiv +1 more source
Aharonov-Bohm interference and phase-coherent surface-state transport in topological insulator rings [PDF]
, 2023 We present low-temperature magnetotransport measurements on selectively-grown Sb$_2$Te$_3$-based topological insulator ring structures. These topological insulator ring geometries display clear Aharonov-Bohm oscillations in the conductance originating from phase-coherent transport around the ring. The temperature dependence of the oscillation amplitude
arxiv +1 more source
Comentário a “Para uma ethical turn da tecnologia: por que Hans Jonas não é um tecnofóbico”: Simondon: um outro ponto de vista sobre a técnica [PDF]
, 2022 Reference of the commented article: OLIVEIRA, J. R. de. Para uma ethical turn da tecnologia: por que Hans Jonas não é um tecnofóbico. Trans/form/ação: revista de Filosofia da Unesp, v. 45, n. 2, p. 191-206, 2022.Referência do artigo comentado: OLIVEIRA,
Carrara, Ozanan Vicente
core +3 more sources
BCS, Nambu-Jona-Lasinio, and Han-Nambu -- A sketch of Nambu's works in 1960-1965 [PDF]
, 2016 The years of 1960-1965 were a remarkable period for Yoichiro Nambu. Starting with a reformulation of BCS theory with emphasis on gauge invariance, he recognized the realization of spontaneous chiral symmetry breaking in particle physics as is evidenced by the Goldberger-Treiman relation.
arxiv +1 more source
Primadonnendämmerung: Rezension zu "Briefwechsel 1954-1978 und weitere Materialien" von Hans Blumenberg und Hans Jonas [PDF]
, 2023 Hans Blumenberg, Hans Jonas: Briefwechsel 1954-1978 und weitere Materialien. Berlin: Suhrkamp 2022. 978-3-518-58777-
Dries, Christian
core
Quantum interference structures in trapped ion dynamics beyond the Lamb-Dicke and rotating wave approximations [PDF]
, 2008 We apply wave packet methods to study an ion-trap system in the strong excitation regime imposing neither the rotating wave nor the Lamb-Dicke approximations. By this approach we show the existence of states with restricted phase space evolution, as a genuine consequence of quantum interference between wave packet fractions.
arxiv +1 more source
A Lewis Acid Stabilized Ketenimine in an Unusual Variant of the Electrophilic Aromatic Substitution
Chemistry – A European Journal, Volume 28, Issue 67, December 1, 2022., 2022 By the action of a strong Lewis acid, isomerization of the tricyanomethane to the ketenimine, HN=C=C(CN)2, is triggered, which in turn directly attacks an aromatic species in an electrophilic aromatic substitution. Abstract Electrophilic aromatic substitution (EAS) can provide a straightforward approach to the efficient synthesis of functionalized ...
Jonas Surkau +5 more
wiley +1 more source
Cadernos CajuínaRESUMO: Jonas viveu em uma época dominada por guerras, nazismo, pelo triunfo da sociedade tecnológica, e por crises ambientais, tudo isso levou o filósofo a refletir sobre a vida e a natureza e como as guerras e a tecnologia ficavam em relação à vida ...
Rayane Ferreira dos Santos
doaj +3 more sources
, 1952 Die Krackung von DDT bei etwa 300° liefert neben 1 Mol. HCl das entspr. 1.1-Diaryl-2.2-dichlor-äthen. Bei der analogen thermischen Behandlung von DDD bildet sich neben 2 Mol. HCl 4.4′-Dichlor-tolan. Diese Spaltprodukte sind nur schwach insektenwirksam.
H. Jonas
semanticscholar +1 more source