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Charge Ordering in a Pure Spin Model: Dipolar Spin Ice
(Amer Physical Soc, 2013-10-04)
We study the dipolar spin-ice model at fixed density of single excitations, rho, using a Monte Carlo algorithm where processes of creation and annihilation of such excitations are banned. In the limit of rho going to zero, ...
Haldane phase in one-dimensional topological Kondo insulators
(American Physical Society, 2015-11)
We investigate the ground-state properties of a recently proposed model for a topological Kondo insulator in one dimension (i.e., the p-wave Kondo-Heisenberg lattice model) by means of the density-matrix renormalization-group ...
Flat-band Ferromagnetism And Spin Waves In Topological Hubbard Models
(AMER PHYSICAL SOCCOLLEGE PK, 2015)
Dynamics of topological defects in a spiral: A scenario for the spin-glass phase of cuprates
(Amer Physical SocCollege PkEUA, 2004)
Topological phase transition of a fractal spin system: The relevance of the network complexity
(2016)
A new type of collective excitations, due to the topology of a complex random network that can be characterized by a fractal dimension D-F, is investigated. We show analytically that these excitations generate phase ...
Dissipative dynamics of topological defects in frustrated Heisenberg spin systems
(Amer Physical SocCollege PkEUA, 2005)
Phase transition of quantum light-matter systems
(Universidad de Chile, 2018)
Strong correlation e ects emerge from light-matter interactions in coupled resonator
arrays, such as the Mott-Insulator to super
uid phase transition of atom-photon
excitations are among the most interesting phenomena ...
Contribuições ao controle aplicado a uma topologia híbrida para regulação de tensão em geradores de indução autoexcitados
(Universidade Federal de Santa MariaBrasilEngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia ElétricaCentro de Tecnologia, 2017-04-24)
This doctoral thesis presents contributions to control applied to hybrid topology
for voltage regulation of self-excited induction generators in stand-alone microgeneration
systems. The generator system considers a ...
Topological phase transition of a fractal spin system: The relevance of the network complexity
(AMER Inst. Physics, 2016)
A new type of collective excitations, due to the topology of a complex random network that can be characterized by a fractal dimension D-F, is investigated. We show analytically that these excitations generate phase ...