Non-Hermitian topological magnonics

T Yu, J Zou, B Zeng, JW Rao, K Xia - Physics Reports, 2024 - Elsevier
Dissipation in mechanics, optics, acoustics, and electronic circuits is nowadays recognized
to be not always detrimental but can be exploited to achieve non-Hermitian topological …

[HTML][HTML] Spatially correlated classical and quantum noise in driven qubits

J Zou, S Bosco, D Loss - npj Quantum Information, 2024 - nature.com
Correlated noise across multiple qubits poses a significant challenge for achieving scalable
and fault-tolerant quantum processors. Despite recent experimental efforts to quantify this …

Spatially correlated classical and quantum noise in driven qubits: The good, the bad, and the ugly

J Zou, S Bosco, D Loss - arXiv preprint arXiv:2308.03054, 2023 - arxiv.org
Correlated noise across multiple qubits poses a significant challenge for achieving scalable
and fault-tolerant quantum processors. Despite recent experimental efforts to quantify this …

Kerr nonlinearity induced nonreciprocity in dissipatively coupled resonators

Q Miao, GS Agarwal - Physical Review Research, 2024 - APS
Nonlinearity-induced nonreciprocity is studied in a system comprising two resonators
coupled to a one-dimensional waveguide when the linear system does not exhibit …

Simultaneous blockade of two remote magnons induced by an atom

YT Yan, C Zhao, DW Wang, J Yang, L Zhou - Physical Review A, 2024 - APS
In this paper, we present a scheme to simultaneously blockade two remote magnons by
coupling them to an odd-number cavity array. In the system, a two-level atom is contained in …

Non-Hermitian Persistent Current Transport

PX Shen, Z Lu, JL Lado, M Trif - arXiv preprint arXiv:2403.09569, 2024 - arxiv.org
Persistent currents circulate continuously without requiring external power sources. Here,
we extend their theory to include dissipation within the framework of non-Hermitian quantum …

[HTML][HTML] Non-Hermitian Casimir effect of magnons

K Nakata, K Suzuki - npj Spintronics, 2024 - nature.com
There has been a growing interest in non-Hermitian quantum mechanics. The key concepts
of quantum mechanics are quantum fluctuations. Quantum fluctuations of quantum fields …

Cavity-enhanced superconductivity via band engineering

VK Kozin, E Thingstad, D Loss, J Klinovaja - arXiv preprint arXiv …, 2024 - arxiv.org
We consider a two-dimensional electron gas interacting with a quantized cavity mode. We
find that the coupling between the electrons and the photons in the cavity enhances the …

Tunable Ultrafast Dynamics of Antiferromagnetic Vortices in Nanoscale Dots

J Zou, E Thingstad, SK Kim, J Klinovaja… - arXiv preprint arXiv …, 2024 - arxiv.org
Topological vortex textures in magnetic disks have garnered great attention due to their
interesting physics and diverse applications. However, up to now, the vortex state has …

Manipulating Spectral Windings and Skin Modes through Nonconservative Couplings

N Kong, C Yu, Y Xu, M Fadel, X Huang… - arXiv preprint arXiv …, 2024 - arxiv.org
The discovery of the non-Hermitian skin effect (NHSE) has revolutionized our understanding
of wave propagation in non-Hermitian systems, highlighting unexpected localization effects …