26 citations · 34 across the 6 of their papers we have counts for
7 papers
Macroscopic quantum superpositions in superconducting circuits
Vitoria A. de Souza, Caio C. Holanda Ribeiro, Vitorio A. De Lorenci
A possible route to test whether macroscopic systems can acquire quantum features using superconducting circuits is here presented. It is shown that under general assumptions a cla…
Quantum Brownian motion of a scalar particle in the presence of a partially reflecting boundary
C. C. H. Ribeiro, V. A. De Lorenci
The second quantization of a real massless scalar field in the presence of a material medium described by a Drude-like susceptibility is here examined in a 1+1 dimensional model. T…
Impact of trans-Planckian excitations on black-hole radiation in dipolar condensates
Caio C. Holanda Ribeiro, Uwe R. Fischer
We consider a quasi-one-dimensional dipolar condensate in an analogue black hole setup. It is shown that the existence of a roton minimum in the condensate dispersion relation leav…
Number-conserving solution for dynamical quantum backreaction in a Bose-Einstein condensate
Sang-Shin Baak, Caio C. Holanda Ribeiro, Uwe R. Fischer
We provide a number-conserving approach to the backreaction problem of small quantum fluctuations onto a classical background for the exactly soluble dynamical evolution of a Bose-…
Analog event horizons from magnetoelectric materials
V. A. De Lorenci, L. T. de Paula, C. C. Holanda Ribeiro
Analog models of gravity provide a laboratory setting to investigate curved space phenomena. In this context, linear magnetoelectric materials offer interesting possibilities for m…
Nonlocal field theory of quasiparticle scattering in dipolar Bose-Einstein condensates
Caio C. Holanda Ribeiro, Uwe R. Fischer
We consider the propagation of quasiparticle excitations in a dipolar Bose-Einstein condensate, and derive a nonlocal field theory of quasiparticle scattering at a stepwise inhomog…