Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Egusquiza, Inigo L."'
Publikováno v:
Physical Review A 108, 033316 (2023)
We characterize the role of the roton instability in the formation of a supersolid state of an elongated dipolar condensate, following a quench of the contact interactions across the superfluid-supersolid transition, as observed in recent experiments
Externí odkaz:
http://arxiv.org/abs/2305.19811
Publikováno v:
Physical Review A 106, 043313 (2022)
We provide a theoretical characterization of the dynamical crossing of the superfluid-supersolid phase transition for a dipolar condensate confined in an elongated trap, as observed in the recent experiment by G. Biagioni et al. [Phys. Rev. X 12, 021
Externí odkaz:
http://arxiv.org/abs/2207.07711
Publikováno v:
Phys. Rev. A 100, 063820 (2019)
We prove, by means of a unified treatment, that the superradiant phase transitions of Dicke and classical oscillator limits of simple light-matter models are indeed of the same type. We show that the mean-field approximation is exact in both cases, a
Externí odkaz:
http://arxiv.org/abs/1904.02118
Autor:
Gonzalez-Raya, Tasio, Cheng, Xiao-Hang, Egusquiza, Iñigo L., Chen, Xi, Sanz, Mikel, Solano, Enrique
Publikováno v:
Phys. Rev. Applied 12, 014037 (2019)
The Hodgkin-Huxley model describes the behavior of the cell membrane in neurons, treating each part of it as an electric circuit element, namely capacitors, memristors, and voltage sources. We focus on the activation channel of potassium ions, due to
Externí odkaz:
http://arxiv.org/abs/1807.10698
Publikováno v:
Sci. Rep. 8, 12634 (2018)
A universal relation is established between the quantum work probability distribution of an isolated driven quantum system and the Loschmidt echo dynamics of a two-mode squeezed state. When the initial density matrix is canonical, the Loschmidt echo
Externí odkaz:
http://arxiv.org/abs/1711.01277
Autor:
Alvarez-Rodriguez, Unai, Perez-Leija, Armando, Egusquiza, Iñigo L., Gräfe, Markus, Sanz, Mikel, Lamata, Lucas, Szameit, Alexander, Solano, Enrique
Publikováno v:
Sci. Rep. 7, 42933 (2017)
We propose the realization of photonic circuits whose dynamics is governed by advanced-retarded differential equations. Beyond their mathematical interest, these photonic configurations enable the implementation of quantum feedback and feedforward wi
Externí odkaz:
http://arxiv.org/abs/1606.05143
Publikováno v:
Chapter in R. S. Anderssen et al. (eds.), Mathematics for Industry 11 (Springer Japan, 2015)
Adiabatic elimination is a standard tool in quantum optics, which produces an effective Hamiltonian for a relevant subspace of states, incorporating effects of its coupling to states with much higher unperturbed energy. It shares with techniques from
Externí odkaz:
http://arxiv.org/abs/1503.01369
Publikováno v:
Phys. Rev. A. 89, 032307 (2014)
A complete set of generalized spin-squeezing inequalities is derived for an ensemble of particles with an arbitrary spin. Our conditions are formulated with the first and second moments of the collective angular momentum coordinates. A method for map
Externí odkaz:
http://arxiv.org/abs/1310.2269
Publikováno v:
Phys. Rev. A 88, 013626 (2013)
We present a method for measuring magnetic field gradients with macroscopic singlet states realized with ensembles of spin-j particles. While the singlet state is completely insensitive to homogeneous magnetic fields, the variance of its collective s
Externí odkaz:
http://arxiv.org/abs/1203.3797
Publikováno v:
Phys. Rev. Lett. 107, 240502 (2011)
We determine the complete set of generalized spin squeezing inequalities, given in terms of the collective angular momentum components, for particles with an arbitrary spin. They can be used for the experimental detection of entanglement in an ensemb
Externí odkaz:
http://arxiv.org/abs/1104.3147