ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

Feshbach modulation spectroscopy of the Fermi-Hubbard model

Dirks, Andreas and Mikelsons, Karlis and Krishnamurthy, HR and Freericks, JK (2015) Feshbach modulation spectroscopy of the Fermi-Hubbard model. In: PHYSICAL REVIEW A, 92 (5).

[img] PDF
Phy_Rev-A_92-5_053612_2015.pdf - Published Version
Restricted to Registered users only

Download (246Kb) | Request a copy
Official URL: http://dx.doi.org/10.1103/PhysRevA.92.053612

Abstract

In the vicinity of a Feshbach resonance, a system of ultracold atoms in an optical lattice undergoes rich physical transformations which involve molecule formation and hopping of molecules on the lattice and thus goes beyond a single-band Hubbard model description. We explore theoretically the response of this system to a harmonic modulation of the magnetic field, and thus of the scattering length, across the Feshbach resonance. In the regime in which the single-band Hubbard model is still valid, we provide results for the doublon production as a function of the various parameters, such as frequency, amplitude, etc., that characterize the field modulation, as well as the lattice depth. The method may uncover a route towards the efficient creation of ultracold molecules and also provide an alternative to conventional lattice-depth-modulation spectroscopy.

Item Type: Journal Article
Related URLs:
Additional Information: Copy right for this article belongs to the AMER PHYSICAL SOC, ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 15 Dec 2015 07:46
Last Modified: 15 Dec 2015 07:46
URI: http://eprints.iisc.ernet.in/id/eprint/52910

Actions (login required)

View Item View Item