Phase Equilibrium of Binary Mixtures in Mixed Dimensions
| العنوان: | Phase Equilibrium of Binary Mixtures in Mixed Dimensions |
|---|---|
| المؤلفون: | Francesca Maria Marchetti, Miguel A. Cazalilla, E. Malatsetxebarria |
| المساهمون: | Ministerio de Economía y Competitividad (España), Comunidad de Madrid, European Science Foundation, Consejo Superior de Investigaciones Científicas (España), Eusko Jaurlaritza, Universidad del País Vasco |
| المصدر: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| بيانات النشر: | arXiv, 2013. |
| سنة النشر: | 2013 |
| مصطلحات موضوعية: | Quantum phase transition, Physics, Condensed Matter::Quantum Gases, Condensed Matter - Mesoscale and Nanoscale Physics, Phase equilibrium, Binary number, FOS: Physical sciences, Fermion, First order, Atomic and Molecular Physics, and Optics, Bethe ansatz, Quantum Gases (cond-mat.quant-gas), Phase (matter), Mesoscale and Nanoscale Physics (cond-mat.mes-hall), Atomic physics, Condensed Matter - Quantum Gases, Boson |
| الوصف: | We study the stability of a Bose-Fermi system loaded into an array of coupled one-dimensional (1D) >tubes,> where bosons and fermions experience different dimensions: Bosons are heavy and strongly localized in the 1D tubes, whereas fermions are light and can hop between the tubes. Using the 174Yb-6Li system as a reference, we obtain the equilibrium phase diagram. We find that, for both attractive and repulsive interspecies interaction, the exact treatment of 1D bosons via the Bethe ansatz implies that the transitions between pure fermion and any phase with a finite density of bosons can only be first order and never continuous, resulting in phase separation in density space. In contrast, the order of the transition between the pure boson and the mixed phase can either be second or first order depending on whether fermions are allowed to hop between the tubes or they also are strictly confined in 1D. We discuss the implications of our findings for current experiments on 174Yb-6Li mixtures as well as Fermi-Fermi mixtures of light and heavy atoms in a mixed-dimensional optical-lattice system. © 2013 American Physical Society. F.M.M. acknowledges financial support from the programs Ramón y Cajal, the Spanish MINECO (MAT2011- 22997), CAM(S-2009/ESP-1503), and Intelbiomat (ESF). E.M. acknowledges support from the CSIC JAE-predoc program, co-financed by the European Science Foundation. E.M. and M.A.C. also acknowledge the support of the Basque Departamento de Educación, the UPV/EHU (Grant No. IT-366-07), and the Spanish MINECO (Grant No. FIS2010-19609-CO2-02). |
| DOI: | 10.48550/arxiv.1304.6303 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::561c8a9f3747add5934d110abd01fbd7 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....561c8a9f3747add5934d110abd01fbd7 |
| قاعدة البيانات: | OpenAIRE |
| DOI: | 10.48550/arxiv.1304.6303 |
|---|