Engineering quantum materials with chiral optical cavities

Nature Materials 20, 438 - 442 (2021)

Engineering quantum materials with chiral optical cavities

Hannes Hübener, Umberto De Giovannini, Christian Schäfer, Johan Andberger, Michael Ruggenthaler, Jerome Faist, Angel Rubio

Strong light–matter coupling in quantum cavities provides a pathway to break fundamental materials symmetries, like time-reversal symmetry in chiral cavities. This Comment discusses the potential to realize non-equilibrium states of matter that have so far been only accessible in ultrafast and ultrastrong laser-driven materials.

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We are grateful to S. A. Sato, D. Shin, M. A. Sentef, E. Ronca, S. Latini, D. Basov, J.-M. Triscone, A. Pasupathy, E. Demler, A. Cavalleri, A. Imamoglu, J. Flick, A. Georges and A. Millis for the fruitful discussion. We acknowledge financial support from the European Research Council (ERC-2015-AdG-694097), SNF project 200020_192330 and the Cluster of Excellence Advanced Imaging of Matter (AIM) EXC 2056-390715994. The Flatiron Institute is a division of the Simons Foundation. Support by the Max Planck — New York City Center for Non-Equilibrium Quantum Phenomena is acknowledged

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