Crystallization of strongly interacting photons in a nonlinear optical fibre

D. E. Chang, V. Gritsev, G. Morigi, V. Vuletić, M. D. Lukin, E. A. Demler

Research output: Contribution to journalArticleResearchpeer-review

153 Citations (Scopus)

Abstract

Understanding strongly correlated quantum systems is a central problem in many areas of physics. The collective behaviour of interacting particles gives rise to diverse fundamental phenomena such as confinement in quantum chromodynamics, electron fractionalization in the quantum Hall regime and phase transitions in unconventional superconductors and quantum magnets. Such systems typically involve massive particles, but optical photons can also interact with one another in a nonlinear medium. In practice, however, such interactions are often very weak. Here we describe a technique that enables the creation of a strongly correlated quantum gas of photons using one-dimensional optical systems with tight field confinement and coherent photon trapping techniques. The confinement enables the generation of large, tunable optical nonlinearities via the interaction of photons with a nearby cold atomic gas. In its extreme, we show that a quantum light field can undergo fermionization in such one-dimensional media, which can be probed via standard photon correlation measurements. © 2008 Macmillan Publishers Limited. All rights reserved.
Original languageEnglish
Pages (from-to)884-889
JournalNature Physics
Volume4
Issue number11
DOIs
Publication statusPublished - 1 Jan 2008

Fingerprint Dive into the research topics of 'Crystallization of strongly interacting photons in a nonlinear optical fibre'. Together they form a unique fingerprint.

Cite this