A study of polarization compensation for quantum networks

Peranić, Matej; Clark, Marcus; Wang, Rui; Bahrani, Sima; Alia, Obada; Wengerowsky, Sören; Radman, Anton; Lončarić, Martin; Stipčević, Mario; Rarity, John G.; Nejabati, Reza; Joshi, Siddarth Koduru (2023) A study of polarization compensation for quantum networks. EPJ Quantum Technology, 10 (1). ISSN 2196-0763

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Abstract

The information-theoretic unconditional security offered by quantum key distribution has spurred the development of larger quantum communication networks. However, as these networks grow so does the strong need to reduce complexity and overheads. Polarization-based entanglement distribution networks are a promising approach due to their scalability and no need for trusted nodes. Nevertheless, they are only viable if the birefringence of all-optical distribution fibres in the network is compensated to preserve the polarization-based quantum state. The brute force approach would require a few hundred fibre polarization controllers for even a moderately sized network. Instead, we propose and investigate four different realizations of polarization compensation schemes that can be used in quantum networks. We compare them based on the type of reference signals, complexity, effort, level of disruption to network operations and performance on a four-user quantum network.

Item Type:	Article
Uncontrolled Keywords:	Quantum communication; Quantum networks; Entanglement; Polarization compensation; Quantum bit error rate
Subjects:	NATURAL SCIENCES > Physics
Divisions:	Center of Excellence for Advanced Materials and Sensing Devices
Projects:	Project title Project leader Project code Project type Razvoj gradivnih blokova za novu europsku kvantnu komunikacijsku mrežu- Mario Stipčević; Ticijana Ban; Damir Aumiler; Danijel Buhin; Mateo Kruljac IPS-2020-01-2616 HRZZ Potpora vrhunskim istraživanjima Centra izvrsnosti za napredne materijale i senzore- Mile Ivanda; Milko Jakšić; Mario Stipčević; Marko Kralj KK.01.1.1.01.0001 EK
Depositing User:	Ivana Vuglec
Date Deposited:	31 Mar 2026 05:31
URI:	http://fulir.irb.hr/id/eprint/11546
DOI:	10.1140/epjqt/s40507-023-00187-w

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