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Articles by Matemáticas y Computación
Con apoyo de migrantes, 19 proyectos educativos en Guadalupe
Acciones realizadas por conducto del programa 2X1, informó Pepe Saldívar Guadalupe, Zac.- Mediante los programas estatales y la buena relación con los clubes migrantes, así como padres de familia y directivos de las escuelas, Pepe Saldívar ha impulsado 19 proyectos en beneficio de diversas instituciones educativas de Guadalupe.
When the Tail Wags the Dog: A Time‐Varying FCVAR Analysis of Bitcoin Market
1 Introduction Bitcoin has become a critical asset for contemporary finance, defying traditional price discovery and market efficiency assumptions. Standard models assume that arbitrage forces will tightly integrate an asset's spot and its derivatives, with prices rapidly approaching fundamental values (Hasbrouck 1995). With Bitcoin, a hybrid market microstructure–mixing decentralized 24/7 spot trading with newly institutionalized futures–flips these assumptions upside down.
Degeneracy in excited-state quantum phase transitions of two-level bosonic models and its influence on system dynamics
Excited-state quantum phase transitions (ESQPTs) strongly influence the spectral properties of collective many-body quantum systems, changing degeneracy patterns in different quantum phases. Level degeneracies in turn affect the system's dynamics. We analyze the degeneracy dependence on the size of two-level boson models with a u(n+1) dynamical algebra, where n is the number of collective degrees of freedom.
Excited-state quantum phase transitions in the anharmonic Lipkin-Meshkov-Glick model: Dynamical aspects
Abstract The standard Lipkin-Meshkov-Glick (LMG) model undergoes a second-order ground-state quantum phase transition (QPT) and an excited-state quantum phase transition (ESQPT). The inclusion of an anharmonic term in the LMG Hamiltonian gives rise to a second ESQPT that alters the static properties of the model [Gamito , Phys. Rev. E 106, 044125 (2022)]. In the present work, the dynamical implications associated to this new ESQPT are analyzed.
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