Zobrazeno 1 - 10
of 413
pro vyhledávání: '"LYRA, M. L."'
Autor:
Rojas, Onofre, de Souza, S. M., Torrico, J., Verissimo, L. M., Pereira, M. S. S., Lyra, M. L., Derzhko, Oleg
Publikováno v:
Phys. Rev. E 110, 024130 (2024)
Recently, a kind of finite-temperature pseudo-transition was observed in several quasi-one-dimensional models. In this work, we consider a genuine one-dimensional extended Hubbard model in the atomic limit, influenced by an external magnetic field an
Externí odkaz:
http://arxiv.org/abs/2406.01344
Publikováno v:
Phys. Rev. A 108, 022407 (2023)
We show that a qubit transfer protocol can be realized through a flat band hosted by a disordered $XX$ spin-1/2 diamond chain. In the absence of disorder, the transmission becomes impossible due to the compact localized states forming the flat band.
Externí odkaz:
http://arxiv.org/abs/2307.15360
Publikováno v:
Phys. Rev. A 108, 023520 (2023)
The dynamics of two interacting quantum particles on a weakly disordered chain is investigated. Spatial quantum interference between them is characterized through the statistics of two-particle transition amplitudes, related to Hanbury Brown-Twiss co
Externí odkaz:
http://arxiv.org/abs/2305.01729
Autor:
Falcão, P. R. N., Lyra, M. L.
We consider a disordered one-dimensional tight-binding model with power-law decaying hopping amplitudes to disclose wavefunction maximum distributions related to the Anderson localization phenomenon. Deeply in the regime of extended states, the wavef
Externí odkaz:
http://arxiv.org/abs/2210.06365
We investigate the outbreak of anomalous quantum wavefunction amplitudes in a one-dimensional tight-binding lattice featuring correlated diagonal disorder. Such rogue-wave-like behavior is fostered by a competition between localization and mobility.
Externí odkaz:
http://arxiv.org/abs/2208.00538
Autor:
Falcão, P. R. N., Mendonça, J. P., Buarque, A. R. C., Dias, W. S., Almeida, G. M. A., Lyra, M. L.
The dynamics of a three-state quantum walk with amplitude-dependent phase shifts is investigated. We consider two representative inputs whose linear evolution is known to display either full dispersion of the wave packet or intrinsic localization on
Externí odkaz:
http://arxiv.org/abs/2207.03953
Rogue waves are rapid and unpredictable events of exceptional amplitude reported in various fields, such as oceanography and optics, with much of the interest being targeted towards their physical origins and likelihood of occurrence. Here, we use th
Externí odkaz:
http://arxiv.org/abs/2204.00060
We perform a finite-time scaling analysis over the detrapping point of a three-state quantum walk on the line. The coin operator is parameterized by $\rho$ that controls the wavepacket spreading velocity. The input state prepared at the origin is set
Externí odkaz:
http://arxiv.org/abs/2108.10275
Autor:
Rojas, Onofre, Torrico, Jordana, Veríssimo, L. M., Pereira, M. S. S., de Souza, S. M., Lyra, M. L.
Publikováno v:
Phys. Rev. E 103, 042123 (2021)
We consider the extended Hubbard diamond chain with an arbitrary number of particles driven by chemical potential. The interaction between dimer diamond chain and nodal couplings is considered in the atomic limit (no hopping), while the dimer interac
Externí odkaz:
http://arxiv.org/abs/2102.10332
Publikováno v:
Phys. Rev. A 103, 012222 (2021)
We study the dynamics of a quantum walker simultaneously subjected to time-independent and -dependent phases. Such dynamics emulates a charged quantum particle in a lattice subjected to a superposition of static and harmonic electric fields. With pro
Externí odkaz:
http://arxiv.org/abs/2008.06710