Momentum-space Landau levels in driven-dissipative cavity arrays

Andrei C. Berceanu, Hannah M Price, Tomoki Ozawa, Iacopo Carusotto

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


We theoretically study the driven-dissipative Harper-Hofstadter model on a two-dimensional square lattice in the presence of a weak harmonic trap. Without pumping and loss, the eigenstates of this system can be understood, in certain limits, as momentum-space toroidal Landau levels, where the Berry curvature, a geometrical property of an energy band, acts like a momentum-space magnetic field. We show that key features of these eigenstates can be observed in the steady state of the driven-dissipative system under a monochromatic coherent drive and present a realistic proposal for an optical experiment using state-of-the-art coupled cavity arrays. We discuss how such spectroscopic measurements may be used to probe effects associated both with the off-diagonal elements of the matrix-valued Berry connection and with the synthetic magnetic gauge.

Original languageEnglish
Article number013827
JournalPhysical Review A
Issue number1
Publication statusPublished - 14 Jan 2016

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


Dive into the research topics of 'Momentum-space Landau levels in driven-dissipative cavity arrays'. Together they form a unique fingerprint.

Cite this