Non-Hermitian optics and photonics: from classical to quantum

C Wang, Z Fu, W Mao, J Qie, AD Stone… - Advances in Optics and …, 2023 - opg.optica.org
Non-Hermitian optics is a burgeoning field at the intersection of quantum physics,
electrodynamics, and nanophotonics. It provides a new perspective of the role of gain and …

Topological physics of non-Hermitian optics and photonics: a review

H Wang, X Zhang, J Hua, D Lei, M Lu, Y Chen - Journal of Optics, 2021 - iopscience.iop.org
The notion of non-Hermitian optics and photonics rooted in quantum mechanics and
photonic systems has recently attracted considerable attention ushering in tremendous …

Topological funneling of light

S Weidemann, M Kremer, T Helbig, T Hofmann… - Science, 2020 - science.org
Dissipation is a general feature of non-Hermitian systems. But rather than being an
unavoidable nuisance, non-Hermiticity can be precisely controlled and hence used for …

Non-Abelian braiding on photonic chips

XL Zhang, F Yu, ZG Chen, ZN Tian, QD Chen… - Nature …, 2022 - nature.com
Non-Abelian braiding has attracted substantial attention because of its pivotal role in
describing the exchange behaviour of anyons—candidates for realizing quantum logics. The …

Experimental Determination of -Symmetric Exceptional Points in a Single Trapped Ion

L Ding, K Shi, Q Zhang, D Shen, X Zhang, W Zhang - Physical Review Letters, 2021 - APS
Exceptional points (EPs) of a non-Hermitian Hamiltonian with parity-time-reversal (PT)
symmetry have the potential to drastically enhance the capabilities of metrology and sensing …

Breaking anti-PT symmetry by spinning a resonator

H Zhang, R Huang, SD Zhang, Y Li, CW Qiu, F Nori… - Nano Letters, 2020 - ACS Publications
Non-Hermitian systems, with symmetric or antisymmetric Hamiltonians under the parity-time
(PT) operations, can have entirely real or imaginary eigenvalues. This fact has led to …

Quantum jumps in the non-Hermitian dynamics of a superconducting qubit

W Chen, M Abbasi, YN Joglekar, KW Murch - Physical Review Letters, 2021 - APS
We study the dynamics of a driven non-Hermitian superconducting qubit which is perturbed
by quantum jumps between energy levels, a purely quantum effect with no classical …

Riemann-encircling exceptional points for efficient asymmetric polarization-locked devices

A Li, W Chen, H Wei, G Lu, A Alù, CW Qiu, L Chen - Physical Review Letters, 2022 - APS
Dynamically encircling exceptional points (EPs) have unveiled intriguing chiral dynamics in
photonics. However, the traditional approach based on an open manifold of Hamiltonian …

Femtosecond laser micromachining for integrated quantum photonics

G Corrielli, A Crespi, R Osellame - Nanophotonics, 2021 - degruyter.com
Integrated quantum photonics, ie the generation, manipulation, and detection of quantum
states of light in integrated photonic chips, is revolutionizing the field of quantum information …

Decoherence-induced exceptional points in a dissipative superconducting qubit

W Chen, M Abbasi, B Ha, S Erdamar, YN Joglekar… - Physical Review Letters, 2022 - APS
Open quantum systems interacting with an environment exhibit dynamics described by the
combination of dissipation and coherent Hamiltonian evolution. Taken together, these …