A tunable transition metal dichalcogenide entangled photon-pair source

Maximilian A. Weissflog; Anna Fedotova; Yilin Tang; Elkin A. Santos; Benjamin Laudert; Saniya Shinde; Fatemeh Abtahi; Mina Afsharnia; Inmaculada Pérez Pérez; Sebastian Ritter; Hao Qin; Jiri Janousek; Sai Shradha; Isabelle Staude; Sina Saravi; Thomas Pertsch; Frank Setzpfandt; Yuerui Lu; Falk Eilenberger

doi:10.1038/s41467-024-51843-3

A tunable transition metal dichalcogenide entangled photon-pair source

Maximilian A. Weissflog^*, Anna Fedotova, Yilin Tang, Elkin A. Santos, Benjamin Laudert, Saniya Shinde, Fatemeh Abtahi, Mina Afsharnia, Inmaculada Pérez Pérez, Sebastian Ritter, Hao Qin, Jiri Janousek, Sai Shradha, Isabelle Staude, Sina Saravi, Thomas Pertsch, Frank Setzpfandt, Yuerui Lu^*, Falk Eilenberger^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

Entangled photon-pair sources are at the core of quantum applications like quantum key distribution, sensing, and imaging. Operation in space-limited and adverse environments such as in satellite-based and mobile communication requires robust entanglement sources with minimal size and weight requirements. Here, we meet this challenge by realizing a cubic micrometer scale entangled photon-pair source in a 3R-stacked transition metal dichalcogenide crystal. Its crystal symmetry enables the generation of polarization-entangled Bell states without additional components and provides tunability by simple control of the pump polarization. Remarkably, generation rate and state tuning are decoupled, leading to equal generation efficiency and no loss of entanglement. Combining transition metal dichalcogenides with monolithic cavities and integrated photonic circuitry or using quasi-phasematching opens the gate towards ultrasmall and scalable quantum devices.

Original language	English
Article number	7600
Journal	Nature Communications
Volume	15
Issue number	1
DOIs	https://doi.org/10.1038/s41467-024-51843-3
Publication status	Published - Dec 2024

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Weissflog, M. A., Fedotova, A., Tang, Y., Santos, E. A., Laudert, B., Shinde, S., Abtahi, F., Afsharnia, M., Pérez Pérez, I., Ritter, S., Qin, H., Janousek, J., Shradha, S., Staude, I., Saravi, S., Pertsch, T., Setzpfandt, F., Lu, Y., & Eilenberger, F. (2024). A tunable transition metal dichalcogenide entangled photon-pair source. Nature Communications, 15(1), Article 7600. https://doi.org/10.1038/s41467-024-51843-3

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title = "A tunable transition metal dichalcogenide entangled photon-pair source",

abstract = "Entangled photon-pair sources are at the core of quantum applications like quantum key distribution, sensing, and imaging. Operation in space-limited and adverse environments such as in satellite-based and mobile communication requires robust entanglement sources with minimal size and weight requirements. Here, we meet this challenge by realizing a cubic micrometer scale entangled photon-pair source in a 3R-stacked transition metal dichalcogenide crystal. Its crystal symmetry enables the generation of polarization-entangled Bell states without additional components and provides tunability by simple control of the pump polarization. Remarkably, generation rate and state tuning are decoupled, leading to equal generation efficiency and no loss of entanglement. Combining transition metal dichalcogenides with monolithic cavities and integrated photonic circuitry or using quasi-phasematching opens the gate towards ultrasmall and scalable quantum devices.",

author = "Weissflog, {Maximilian A.} and Anna Fedotova and Yilin Tang and Santos, {Elkin A.} and Benjamin Laudert and Saniya Shinde and Fatemeh Abtahi and Mina Afsharnia and {P{\'e}rez P{\'e}rez}, Inmaculada and Sebastian Ritter and Hao Qin and Jiri Janousek and Sai Shradha and Isabelle Staude and Sina Saravi and Thomas Pertsch and Frank Setzpfandt and Yuerui Lu and Falk Eilenberger",

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Weissflog, MA, Fedotova, A, Tang, Y, Santos, EA, Laudert, B, Shinde, S, Abtahi, F, Afsharnia, M, Pérez Pérez, I, Ritter, S, Qin, H, Janousek, J, Shradha, S, Staude, I, Saravi, S, Pertsch, T, Setzpfandt, F, Lu, Y & Eilenberger, F 2024, 'A tunable transition metal dichalcogenide entangled photon-pair source', Nature Communications, vol. 15, no. 1, 7600. https://doi.org/10.1038/s41467-024-51843-3

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AU - Weissflog, Maximilian A.

AU - Fedotova, Anna

AU - Tang, Yilin

AU - Santos, Elkin A.

AU - Laudert, Benjamin

AU - Shinde, Saniya

AU - Abtahi, Fatemeh

AU - Afsharnia, Mina

AU - Pérez Pérez, Inmaculada

AU - Ritter, Sebastian

AU - Qin, Hao

AU - Janousek, Jiri

AU - Shradha, Sai

AU - Staude, Isabelle

AU - Saravi, Sina

AU - Pertsch, Thomas

AU - Setzpfandt, Frank

AU - Lu, Yuerui

AU - Eilenberger, Falk

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N2 - Entangled photon-pair sources are at the core of quantum applications like quantum key distribution, sensing, and imaging. Operation in space-limited and adverse environments such as in satellite-based and mobile communication requires robust entanglement sources with minimal size and weight requirements. Here, we meet this challenge by realizing a cubic micrometer scale entangled photon-pair source in a 3R-stacked transition metal dichalcogenide crystal. Its crystal symmetry enables the generation of polarization-entangled Bell states without additional components and provides tunability by simple control of the pump polarization. Remarkably, generation rate and state tuning are decoupled, leading to equal generation efficiency and no loss of entanglement. Combining transition metal dichalcogenides with monolithic cavities and integrated photonic circuitry or using quasi-phasematching opens the gate towards ultrasmall and scalable quantum devices.

AB - Entangled photon-pair sources are at the core of quantum applications like quantum key distribution, sensing, and imaging. Operation in space-limited and adverse environments such as in satellite-based and mobile communication requires robust entanglement sources with minimal size and weight requirements. Here, we meet this challenge by realizing a cubic micrometer scale entangled photon-pair source in a 3R-stacked transition metal dichalcogenide crystal. Its crystal symmetry enables the generation of polarization-entangled Bell states without additional components and provides tunability by simple control of the pump polarization. Remarkably, generation rate and state tuning are decoupled, leading to equal generation efficiency and no loss of entanglement. Combining transition metal dichalcogenides with monolithic cavities and integrated photonic circuitry or using quasi-phasematching opens the gate towards ultrasmall and scalable quantum devices.

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A tunable transition metal dichalcogenide entangled photon-pair source

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