Twist-Controlled Modulation of Quantum Emitters in a Van der Waals Bilayer

Fuente: arXiv
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Auteurs principaux: Gale, Angus, Lee, Seungjun, Park, Seungmin, Williams, Evan, Zeng, Helen Zhi Jie, Liddle-Wesolowski, James, Kim, Young Duck, Toth, Milos, Low, Tony, Aharonovich, Igor
Format: Preprint
Publié: 2026
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author Gale, Angus
Lee, Seungjun
Park, Seungmin
Williams, Evan
Zeng, Helen Zhi Jie
Liddle-Wesolowski, James
Kim, Young Duck
Toth, Milos
Low, Tony
Aharonovich, Igor
author_facet Gale, Angus
Lee, Seungjun
Park, Seungmin
Williams, Evan
Zeng, Helen Zhi Jie
Liddle-Wesolowski, James
Kim, Young Duck
Toth, Milos
Low, Tony
Aharonovich, Igor
contents Stacking and twisting two dimensional materials has garnered enormous attention across the condensed matter and the nanophotonic communities. The surge of interest stems from the emergence of novel photophysical phenomena that arise due to the interlayer coupling of the individual layers. Here, we demonstrate that the twist degree of freedom can modulate a single quantum emitter at room temperature. We employ a van der Waals homobilayer of hexagonal boron nitride (hBN) and model the emission properties of quantum emitters as a function of the twist angle. Density functional theory results show that the embedded emitters are strongly influenced by the twist angle and the stacking of the top hBN layer. We consequently engineer these systems experimentally, and demonstrate in-situ tuning of embedded quantum emitters by mechanically twisting the top hBN layer, achieving tunability of over 30 nm (~ 100 meV). Our work demonstrates that mechanical twisting can be harnessed to modulate the embedded quantum emitters in a vdW material, marking a crucial step towards a programmable on-chip quantum circuitry.
format Preprint
id arxiv_https___arxiv_org_abs_2603_05856
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Twist-Controlled Modulation of Quantum Emitters in a Van der Waals Bilayer
Gale, Angus
Lee, Seungjun
Park, Seungmin
Williams, Evan
Zeng, Helen Zhi Jie
Liddle-Wesolowski, James
Kim, Young Duck
Toth, Milos
Low, Tony
Aharonovich, Igor
Materials Science
Stacking and twisting two dimensional materials has garnered enormous attention across the condensed matter and the nanophotonic communities. The surge of interest stems from the emergence of novel photophysical phenomena that arise due to the interlayer coupling of the individual layers. Here, we demonstrate that the twist degree of freedom can modulate a single quantum emitter at room temperature. We employ a van der Waals homobilayer of hexagonal boron nitride (hBN) and model the emission properties of quantum emitters as a function of the twist angle. Density functional theory results show that the embedded emitters are strongly influenced by the twist angle and the stacking of the top hBN layer. We consequently engineer these systems experimentally, and demonstrate in-situ tuning of embedded quantum emitters by mechanically twisting the top hBN layer, achieving tunability of over 30 nm (~ 100 meV). Our work demonstrates that mechanical twisting can be harnessed to modulate the embedded quantum emitters in a vdW material, marking a crucial step towards a programmable on-chip quantum circuitry.
title Twist-Controlled Modulation of Quantum Emitters in a Van der Waals Bilayer
topic Materials Science
url https://arxiv.org/abs/2603.05856