The main features of quantum mechanics reside in interference deriving from the superposition of different quantum states. While current quantum optical technology enables two-photon interference both in bulk and integrated systems, simultaneous interference of more than two particles, leading to richer quantum phenomena, is still a challenging task. Here we report the experimental observation of three-photon interference in an integrated three-port directional coupler realized by ultrafast laser writing. By exploiting the capability of this technique to produce three-dimensional structures, we realized and tested in the quantum regime a three-port beam splitter, namely a tritter, which allowed us to observe bosonic coalescence of three photons. These results open new important perspectives in many areas of quantum information, such as fundamental tests of quantum mechanics with increasing number of photons, quantum state engineering, quantum sensing and quantum simulation.

Three-photon bosonic coalescence in an integrated tritter / Spagnolo, Nicolo'; Vitelli, Chiara; Lorenzo, Aparo; Mataloni, Paolo; Sciarrino, Fabio; Andrea, Crespi; Roberta, Ramponi; Roberto, Osellame. - In: NATURE COMMUNICATIONS. - ISSN 2041-1723. - 4:(2013), p. 1606. [10.1038/ncomms2616]

Three-photon bosonic coalescence in an integrated tritter

SPAGNOLO, NICOLO';VITELLI, Chiara;MATALONI, Paolo;SCIARRINO, Fabio;
2013

Abstract

The main features of quantum mechanics reside in interference deriving from the superposition of different quantum states. While current quantum optical technology enables two-photon interference both in bulk and integrated systems, simultaneous interference of more than two particles, leading to richer quantum phenomena, is still a challenging task. Here we report the experimental observation of three-photon interference in an integrated three-port directional coupler realized by ultrafast laser writing. By exploiting the capability of this technique to produce three-dimensional structures, we realized and tested in the quantum regime a three-port beam splitter, namely a tritter, which allowed us to observe bosonic coalescence of three photons. These results open new important perspectives in many areas of quantum information, such as fundamental tests of quantum mechanics with increasing number of photons, quantum state engineering, quantum sensing and quantum simulation.
2013
01 Pubblicazione su rivista::01a Articolo in rivista
Three-photon bosonic coalescence in an integrated tritter / Spagnolo, Nicolo'; Vitelli, Chiara; Lorenzo, Aparo; Mataloni, Paolo; Sciarrino, Fabio; Andrea, Crespi; Roberta, Ramponi; Roberto, Osellame. - In: NATURE COMMUNICATIONS. - ISSN 2041-1723. - 4:(2013), p. 1606. [10.1038/ncomms2616]
File allegati a questo prodotto
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/515382
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? 12
  • Scopus 146
  • ???jsp.display-item.citation.isi??? 124
social impact