Power-Law-Exponential Interaction Induced Quantum Spiral Phases
Abstract
We theoretically predict a kind of power-law-exponential (PLE) dipole-dipole interaction between quantum emitters in a 1D waveguide QED system. This unconventional long-range interaction is the combination of power-law growth and exponential decay couplings. Applying PLE interaction to a spin model, we uncover the rich many-body phases. Most remarkably, we find that PLE interaction can induce the ordered and critical spiral phases. These spiral phases emerge from the strong frustration generated by the power-law factor of PLE interaction, hence they are absent for other types of long-range interaction, e.g., pure exponential and power-law decay interactions. Our work is also applicable for the higher dimensional systems. It fundamentally broadens the realm of many-body physics and has the significant applications in quantum simulation of strong correlated matters.
Keywords
Cite
@article{arxiv.2405.14243,
title = {Power-Law-Exponential Interaction Induced Quantum Spiral Phases},
author = {Guoqing Tian and Ying Wu and Xin-You Lü},
journal= {arXiv preprint arXiv:2405.14243},
year = {2024}
}
Comments
16 pages, 12 figures