Scientific Results

Experimental realization of quantum zeno dynamics

Year: 2014

Authors: Schafer F., Herrera I., Cherukattil S., Lovecchio C., Cataliotti F.S., Caruso F., Smerzi .A

Autors Affiliation: LENS—Universita` di Firenze, Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy; Dipartimento di Fisica ed Astronomia, Via Sansone 1, 50019 Sesto Fiorentino, Italy; QSTAR, Largo Enrico Fermi 2, 50125 Firenze, Italy; Istituto Nazionale di Ottica, INO-CNR, Largo Enrico Fermi 2, 50125 Firenze, Italy

Abstract: It is generally impossible to probe a quantum system without disturbing it. However, it is possible to exploit the back action of quantum measurements and strong couplings to tailor and protect the coherent evolution of a quantum system. This is a profound and counter-intuitive phenomenon known as quantum Zeno dynamics. Here we demonstrate quantum Zeno dynamics with a rubidium Bose-Einstein condensate in a five-level Hilbert space. We harness measurements and strong couplings to dynamically disconnect different groups of quantum states and constrain the atoms to coherently evolve inside a two-level subregion. In parallel to the foundational importance due to the realization of a dynamical superselection rule and the theory of quantum measurements, this is an important step forward in protecting and controlling quantum dynamics and, broadly speaking, quantum information processing.

Journal/Review: NATURE COMMUNICATIONS

Volume: 5      Pages from: 3194  to: 3194

More Information: This work was supported by the Seventh Framework Programme for Research of the European Comission, under FET-Open grant MALICIA (265522) and QIBEC (284584). The work of F. C. has been supported by EU FP7 Marie-Curie Programme (Career Integration Grant) and by MIUR-FIRB grant (RBFR10M3SB). We thank M. Inguscio for fruitful discussions and continuous support. We thank M. Schrambock (Atominstitut, TU-Wien) at the ZMNS (TU-Wien) for the realization of the atom chip. QSTAR is the MPQ, LENS, IIT, UniFi Joint Center for Quantum Science and Technology in Arcetri.
DOI: 10.1038/ncomms4194

Citations: 95
data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2022-01-16
References taken from IsiWeb of Knowledge: (subscribers only)
Connecting to view paper tab on IsiWeb: Click here
Connecting to view citations from IsiWeb: Click here

gdpr-image
This site uses cookies. If you decide to continue browsing we consider that you accept their use. For more information about cookies and how to delete them please read our Info Policy on cookies use.
Read more