Browsing by Author "Sánchez Baena, Juan"
Now showing items 1-12 of 12
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Correlations in spin-orbit coupled ultracold quantum gases
Sánchez Baena, Juan (Universitat Politècnica de Catalunya, 2020-12-14)
Doctoral thesis
Open AccessThe main goal of this thesis is the computation of ground state properties of quantum many-body systems under Spin Orbit coupling (SOC) interactions out of the ultradilute regime. We present two approaches to fulfill this ... -
Diffusion Monte Carlo methods for spin-orbit-coupled ultracold Bose gases
Sánchez Baena, Juan; Boronat Medico, Jordi; Mazzanti Castrillejo, Fernando Pablo (American Physical Society (APS), 2018-11-27)
Article
Open AccessWe present two diffusion Monte Carlo (DMC) algorithms for systems of ultracold quantum gases featuring synthetic spin-orbit interactions. The first one is a spin-integrated DMC method which provides fixed-phase energy ... -
Dilute dipolar quantum droplets beyond the extended Gross-Pitaevskii equation
Bötcher, Fabian; Wenzel, Matthias; Schmidt, Jan-Niklas; Guo, Mingyang; Langen, Tim; Ferrier-Barbut, Igor; Pfau, Tilman; Bombín Escudero, Raul; Sánchez Baena, Juan; Boronat Medico, Jordi; Mazzanti Castrillejo, Fernando Pablo (American Physical Society, 2019-11-08)
Article
Open AccessDipolar quantum droplets are exotic quantum objects that are self-bound due to the subtle balance of attraction, repulsion, and quantum correlations. Here we present a systematic study of the critical atom number of these ... -
Droplets of trapped quantum dipolar bosons
Macia Rey, Adrián; Sánchez Baena, Juan; Boronat Medico, Jordi; Mazzanti Castrillejo, Fernando Pablo (2016-11-10)
Article
Open AccessStrongly interacting systems of dipolar bosons in three dimensions confined by harmonic traps are analyzed using the exact path integral ground-state Monte Carlo method. By adding a repulsive two-body potential, we find a ... -
Few trapped quantum dipoles: quantum versus classical structures
Sánchez Baena, Juan; Mazzanti Castrillejo, Fernando Pablo; Boronat Medico, Jordi (2018-01-31)
Article
Open AccessWe analyze the ground state of a two-dimensional quantum system of a few strongly confined dipolar bosons. Dipoles arrange in different stable structures that depend on the tilting polarization angle and the anisotropy of ... -
Finite-range effects in the two-dimensional repulsive Fermi polaron
Bombín Escudero, Raul; Cikojevic, Viktor; Sánchez Baena, Juan; Boronat Medico, Jordi (American Physical Society, 2021-04-01)
Article
Open AccessWe study the repulsive Fermi polaron in a two-component, two-dimensional system of fermionic atoms inspired by the results of a recent experiment with 173Yb atoms [N. Darkwah Oppong et al., Phys. Rev. Lett. 122, 193604 ... -
Heating a dipolar quantum fluid into a solid
Sánchez Baena, Juan; Politi, Claudia; Maucher, Fabian; Ferlaino, Francesca; Pohl, Thomas (2023-04-04)
Article
Open AccessRaising the temperature of a material enhances the thermal motion of particles. Such an increase in thermal energy commonly leads to the melting of a solid into a fluid and eventually vaporises the liquid into a gaseous ... -
Microscopic description of confined bosonic dipolar quantum gases in two dimensions
Sánchez Baena, Juan (Universitat Politècnica de Catalunya, 2015-06-21)
Bachelor thesis
Open AccessWe present a microscopic description of the two dimensional quantum few body problem involving confined polarized bosons. Due to anisotropy of the dipolar interaction, the system presents an interesting behaviour in terms ... -
Superfluid-supersolid phase transition of elongated dipolar Bose-Einstein condensates at finite temperatures
Sánchez Baena, Juan; Pohl, Thomas; Maucher, Fabian (American Physical Society, 2024-05-17)
Article
Open AccessWe analyze the finite-temperature phase diagram of a dipolar Bose-Einstein condensate confined in a tubular geometry. The effect of thermal fluctuations is accounted for by means of Bogoliubov theory employing the local ... -
Supersolid striped droplets in a Raman spin-orbit-coupled system
Sánchez Baena, Juan; Boronat Medico, Jordi; Mazzanti Castrillejo, Fernando Pablo (American Physical Society, 2020-11-09)
Article
Open AccessWe analyze the role played by quantum fluctuations on a Raman spin-orbit-coupled system in the stripe phase under attractive interspin interactions. We show that beyond-mean-field effects stabilize the collapse predicted ... -
Supersolid stripes enhanced by correlations in a Raman spin-orbit-coupled system
Sánchez Baena, Juan; Boronat Medico, Jordi; Mazzanti Castrillejo, Fernando Pablo (American Physical Society (APS), 2020-04-01)
Article
Open AccessA Bose gas under the effect of Raman spin-orbit coupling (SOC) is analyzed using the discrete spin T-moves diffusion Monte Carlo method. Upon computing the energy as well as the static structure factor and the superfluid ... -
Universal properties of anisotropic dipolar bosons in two dimensions
Sánchez Baena, Juan; Peña Ardila, Luis Aldemar; Astrakharchik, Grigori; Mazzanti Castrillejo, Fernando Pablo (2022-08-25)
Article
Open AccessThe energy of ultra-dilute quantum many-body systems is known to exhibit a universal dependence on the gas parameter x = n a d 0 , with n the density, d the dimensionality of the space ( d = 1 , 2 , 3 ) and a 0 the s -wave ...