Disorder-Induced Strongly Correlated Photons in Waveguide QED

Fuente: arXiv
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Main Authors: Tian, Guoqing, Zheng, Li-Li, Zhan, Zhi-Ming, Nori, Franco, Lü, Xin-You
Format: Preprint
Published: 2025
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author Tian, Guoqing
Zheng, Li-Li
Zhan, Zhi-Ming
Nori, Franco
Lü, Xin-You
author_facet Tian, Guoqing
Zheng, Li-Li
Zhan, Zhi-Ming
Nori, Franco
Lü, Xin-You
contents Strongly correlated photons play a crucial role in modern quantum technologies. Here, we investigate the probability of generating strongly correlated photons in a chain of N qubits coupled to a one-dimensional (1D) waveguide. We found that disorder in the transition frequencies can induce photon antibunching, and especially nearly perfect photon blockade events in the transmission and reflection outputs. As a comparison, in ordered chains, strongly correlated photons cannot be generated in the transmission output, and only weakly antibunched photons are found in the reflection output. The occurrence of nearly perfect photon blockade events stems from the disorder-induced near completely destructive interference of photon scattering paths. Our work highlights the impact of disorder on photon correlation generation and suggests that disorder can enhance the potential for achieving strongly correlated photon.
format Preprint
id arxiv_https___arxiv_org_abs_2510_11376
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Disorder-Induced Strongly Correlated Photons in Waveguide QED
Tian, Guoqing
Zheng, Li-Li
Zhan, Zhi-Ming
Nori, Franco
Lü, Xin-You
Quantum Physics
Strongly correlated photons play a crucial role in modern quantum technologies. Here, we investigate the probability of generating strongly correlated photons in a chain of N qubits coupled to a one-dimensional (1D) waveguide. We found that disorder in the transition frequencies can induce photon antibunching, and especially nearly perfect photon blockade events in the transmission and reflection outputs. As a comparison, in ordered chains, strongly correlated photons cannot be generated in the transmission output, and only weakly antibunched photons are found in the reflection output. The occurrence of nearly perfect photon blockade events stems from the disorder-induced near completely destructive interference of photon scattering paths. Our work highlights the impact of disorder on photon correlation generation and suggests that disorder can enhance the potential for achieving strongly correlated photon.
title Disorder-Induced Strongly Correlated Photons in Waveguide QED
topic Quantum Physics
url https://arxiv.org/abs/2510.11376