Eur. Phys. J. Special Topics 217, 207-214 (2013)
https://doi.org/10.1140/epjst/e2013-01770-x

Regular Article

Coherent control of quantum transport: Modulation-enhanced phase detection and band spectroscopy

Dipartimento di Fisica e Astronomia and LENS, Università di Firenze, Istituto Nazionale di Fisica Nucleare, Sezione di Firenze, via Sansone 1, 50019 Sesto Fiorentino, Italy

^a e-mail: tarallo@lens.unifi.it
^b e-mail: guglielmo.tino@fi.infn.it

Received: 9 September 2012
Revised: 15 January 2013
Published online: 11 March 2013

Abstract

Amplitude modulation of a tilted optical lattice can be used to steer the quantum transport of matter wave packets in a very flexible way. This allows the experimental study of the phase sensitivity in a multimode interferometer based on delocalization-enhanced Bloch oscillations and to probe the band structure modified by a constant force.