Zobrazeno 1 - 10
of 136
pro vyhledávání: '"Roldán, Eugenio"'
We analyse a nonlinear QW model which can be experimentally implemented using the components of the electric field on an optical nonlinear Kerr medium, which translates into a rotation in the coin operator, with an angle which depends (in a nonlinear
Externí odkaz:
http://arxiv.org/abs/2308.01014
Autor:
Alonso-Lobo, César, Martínez-Quesada, Manuel, Hinarejos, Margarida, de Valcárcel, Germán J., Roldán, Eugenio
We present and study a two-particle quantum walk on the line in which the two particles interact via a long-range Coulombian-like interaction. We obtain the spectrum of the system as well as study the type of molecules that form, attending to the bos
Externí odkaz:
http://arxiv.org/abs/1805.09200
Publikováno v:
Phys. Rev. A 97, 062117 (2018)
According to the world view of macrorealism, the properties of a given system exist prior to and independent of measurement, which is incompatible with quantum mechanics. Leggett and Garg put forward a practical criterion capable of identifying viola
Externí odkaz:
http://arxiv.org/abs/1708.00713
Akademický článek
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Publikováno v:
New Journal of Physics 22, 093076 (2020)
We investigate theoretically the generation of nonlinear dissipative structures in optomechanical (OM) systems containing discrete arrays of mechanical resonators. We consider both hybrid models in which the optical system is a continuous multimode f
Externí odkaz:
http://arxiv.org/abs/1609.07405
Autor:
Bru, Luis A., de Valcárcel, Germán J., Di Molfetta, Giuseppe, Pérez, Armando, Roldán, Eugenio, Silva, Fernando
Publikováno v:
Phys. Rev. A 94, 032328 (2016)
We consider the 2D alternate quantum walk on a cylinder. We concentrate on the study of the motion along the open dimension, in the spirit of looking at the closed coordinate as a small or "hidden" extra dimension. If one starts from localized initia
Externí odkaz:
http://arxiv.org/abs/1607.08191
Autor:
Bru, Luis A., Hinarejos, Margarida, Silva, Fernando, de Valcárcel, Germán J., Roldán, Eugenio
Publikováno v:
Phys. Rev. A 93, 032333 (2016)
We study electric quantum walks in two dimensions considering Grover, Alternate, Hadamard, and DFT quantum walks. In the Grover walk the behaviour under an electric field is easy to summarize: when the field direction coincides with the x or y axes,
Externí odkaz:
http://arxiv.org/abs/1512.07433
Akademický článek
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Publikováno v:
Opt. Exp. 22, 24010 (2014)
Nonlinear optical cavities are crucial both in classical and quantum optics; in particular, nowadays optical parametric oscillators are one of the most versatile and tunable sources of coherent light, as well as the sources of the highest quality qua
Externí odkaz:
http://arxiv.org/abs/1402.7250
Autor:
de Valcárcel, Germán J., Hinarejos, Margarida, Roldán, Eugenio, Pérez, Armando, Romanelli, Alejandro
Publikováno v:
New J. Phys. 15 (2013) 073041
The discrete quantum walk in N dimensions is analyzed from the perspective of its dispersion relations. This allows understanding known properties, as well as designing new ones when spatially extended initial conditions are considered. This is done
Externí odkaz:
http://arxiv.org/abs/1212.3600