Berlin 2014 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 42: Ultracold atoms and molecules I (with Q)

A 42.4: Vortrag

Donnerstag, 20. März 2014, 14:45–15:00, DO26 208

Quantum simulation of nuclear matter with ultracold molecules — •Jordi Mur-Petit — Instituto de Estructura de la Materia IEM-CSIC, Madrid, Spanien

Cold polar molecules have attracted attention in the last years as systems potentially capable of realizing a variety of strongly-correlated phases of condensed matter, from quantum magnetism models [1] to superconductivity [2] and topological phases [3]. In these and similar proposals, attention has been driven to the use of vibrational and rotational degrees of freedom to encode and manipulate quantum information. Here, we propose to use ultracold molecules to quantum-simulate nuclear matter. We discuss how to harness a manifold of rotational and hyperfine states of polar molecules to encode the degrees of freedom required to quantum-simulate nuclear matter, spin and isospin. Then, we consider the use of external fields to control the intermolecular interactions [4] in order to model known properties of the nucleon-nucleon interaction at low energies. This work is a first step in the study of open problems in nuclear physics, from the equation of state of nuclear matter, to the determination of magic numbers of highly asymmetric nuclei [5]. [1] R. Barnett et al., PRL 96, 190401, 2006. [2] A. Gorkov et al., PRL 107, 115301, 2011. [3] J. Levinsen et al., PRA 013603, 2011; S. Manmana et al., PRB 87, 081106R, 2013. [4] A. Micheli et al., Nat. Phys. 2, 341, 2006; T.V. Tscherbul and R.V. Krems, ch. 4 in "Cold Molecules", edited by R. Krems, W. Stwalley and B. Friedrich, CRC Press, 2010; M. Lemeshko et al., Mol. Phys. 111, 1648, 2013. [6] J. Dobaczewski (ed.), J. Phys. G 37, special issue no. 6, 2010.