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Chiral quantum optics with giant atoms

Ariadna Soro Álvarez, Anton Frisk Kockum

Bulletin of the American Physical SocietyMar 17, 20210 citations

Topological Optical Chirality Dichroism

Wojciech J. Jankowski, Giandomenico Palumbo, Robert-Jan Slager

We report on a universal topological dichroism of chiral three-dimensional systems in response to the chirality of light. We show that chiral topological invariants result in integer-quantized dichroic excitation rate differences. Moreover, we demonstrate that such topological effects arise more generally from coupling optical chirality to higher tensor Berry curvatures and Dixmier-Douady invariants of quantum states, including Hopf indices. We finally propose an experimental setup that leverages superchiral light as a smoking-gun probe of chiral band topologies in three-dimensional materials. Our findings establish an optical route for probing to date unobserved chiral electronic band topologies.We report on a universal topological dichroism of chiral three-dimensional systems in response to the chirality of light. We show that chiral topological invariants result in integer-quantized dichroic excitation rate differences. Moreover, we demonstrate that such topological effects arise more generally from coupling optical chirality to higher tensor Berry curvatures and Dixmier-Douady invariants of quantum states, including Hopf indices. We finally propose an experimental setup that leverages superchiral light as a smoking-gun probe of chiral band topologies in three-dimensional materials. Our findings establish an optical route for probing to date unobserved chiral electronic band topologies.

cond-mat.mes-hallCross-listedarXiv:2603.28752Mar 31, 2026

Chiral Quantum Optics and Optical Nonreciprocity Based on Susceptibility‐Momentum Locking

Lei Tang, Jiang-Shan Tang, Keyu Xia

Abstract The progress in chiral light–matter interaction in the quantum regime leads to emergence of chiral quantum optics and quantum nonreciprocity. Spin‐momentum locking is at the heart of chiral quantum optics. In this short review, the basic knowledge of optical nonreciprocity and susceptibility‐momentum locking (SML) is introduced as a novel mechanism for conducting chiral quantum optics. Various approaches achieving optical nonreciprocity based on SML are also reviewed. A perspective regarding the challenges in this direction will also be provided.Abstract The progress in chiral light–matter interaction in the quantum regime leads to emergence of chiral quantum optics and quantum nonreciprocity. Spin‐momentum locking is at the heart of chiral quantum optics. In this short review, the basic knowledge of optical nonreciprocity and susceptibility‐momentum locking (SML) is introduced as a novel mechanism for conducting chiral quantum optics. Various approaches achieving optical nonreciprocity based on SML are also reviewed. A perspective regarding the challenges in this direction will also be provided.

Advanced Quantum TechnologiesJun 19, 202222 citations

Quantum optics

Stefan Tappertzhofen, Jack Alexander-Webber

Elsevier eBooksOct 17, 20250 citations

Chiral photon blockade in the spinning Kerr resonator

Yunlan Zuo, Ya‐Feng Jiao, Xun‐Wei Xu +3 more

We propose how to achieve chiral photon blockade by spinning a nonlinear optical resonator. We show that by driving such a device at a fixed direction, completely different quantum effects can emerge for the counter-propagating optical modes, due to the spinning-induced breaking of time-reversal symmetry, which otherwise is unattainable for the same device in the static regime. Also, we find that in comparison with the static case, robust non-classical correlations against random backscattering losses can be achieved for such a quantum chiral system. Our work, extending previous works on the spontaneous breaking of optical chiral symmetry from the classical to purely quantum regimes, can stimulate more efforts towards making and utilizing various chiral quantum effects, including applications for chiral quantum networks or noise-tolerant quantum sensors.We propose how to achieve chiral photon blockade by spinning a nonlinear optical resonator. We show that by driving such a device at a fixed direction, completely different quantum effects can emerge for the counter-propagating optical modes, due to the spinning-induced breaking of time-reversal symmetry, which otherwise is unattainable for the same device in the static regime. Also, we find that in comparison with the static case, robust non-classical correlations against random backscattering losses can be achieved for such a quantum chiral system. Our work, extending previous works on the spontaneous breaking of optical chiral symmetry from the classical to purely quantum regimes, can stimulate more efforts towards making and utilizing various chiral quantum effects, including applications for chiral quantum networks or noise-tolerant quantum sensors.

arXiv:2406.00745Optics ExpressMay 20, 202412 citations

Quantum Optics

Miguel Orszag

Springer eBooksJan 1, 20246 citations

Chiral quantum optics

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