Non-Markovianity in High-Dimensional Open Quantum Systems using Next-generation Multicore Optical Fibers DOI Creative Commons
Santiago Rojas-Rojas, Daniel Martínez, Kei Sawada

et al.

arXiv (Cornell University), Journal Year: 2023, Volume and Issue: unknown

Published: Jan. 1, 2023

With the advent of quantum technology, interest in communication tasks assisted by systems has increased both academia and industry. Nonetheless, transmission a state real-world scenarios is bounded environmental noise, so that channel an open system. In this work, we study high-dimensional system multicore optical fiber characterizing interaction as operations corresponding to probabilistic phase-flips. The experimental platform currently state-of-the-art for information processing with fibers. At given evolution stage observe non-Markovian behaviour system, which demonstrated through proof-of-principle implementation Quantum Vault protocol. A better understanding phase-noise fibers will improve several protocols, since they are prime candidate be adopted future telecom networks.

Language: Английский

Space-division multiplexing for optical fiber communications DOI Creative Commons
Benjamin J. Puttnam, Georg Rademacher, Ruben S. Lúıs

et al.

Optica, Journal Year: 2021, Volume and Issue: 8(9), P. 1186 - 1186

Published: July 9, 2021

Research on space-division multiplexing (SDM) came to prominence in early 2010 being primarily proposed as a means of multiplying the information-carrying capacity optical fibers at same time increasing efficiency through resource sharing. Proposed SDM transmission systems range from parallel single-mode with shared amplifier pump lasers full spatial integration transceiver hardware, signal processing, and amplification around fiber over 100 channels comprising multiple cores each carrying modes. In this paper, we review progress research. We first outline main classifications features novel such multicore (MCFs), multimode fibers, few-mode MCFs, coupled-core MCFs. research achievements type before discussing digital-signal technology, milestones networking demonstrations. Finally, draw comparisons between types current trends speculate future developments applications beyond data transmission.

Language: Английский

Citations

436
Roadmap on multimode photonics DOI Creative Commons
Ilaria Cristiani, Cosimo Lacava, Georg Rademacher

et al.

Journal of Optics, Journal Year: 2022, Volume and Issue: 24(8), P. 083001 - 083001

Published: June 20, 2022

Abstract Multimode devices and components have attracted considerable attention in the last years, different research topics themes emerged very recently. The multimodality can be seen as an additional degree of freedom designing devices, thus allowing for development more complex sophisticated components. propagation modes used to increase fiber optic capacity, but also introduce novel intermodal interactions, well manipulation optical a variety applications. In this roadmap we would like give readers comprehensive overview most recent developments field, presenting contributions coming from topics, including technologies, integrated optics, basic physics telecommunications.

Language: Английский

Citations

49
High-Dimensional Pixel Entanglement: Efficient Generation and Certification DOI Creative Commons
Natalia Herrera Valencia, Vatshal Srivastav, Matej Pivoluska

et al.

Quantum, Journal Year: 2020, Volume and Issue: 4, P. 376 - 376

Published: Dec. 24, 2020

Photons offer the potential to carry large amounts of information in their spectral, spatial, and polarisation degrees freedom. While state-of-the-art classical communication systems routinely aim maximize this information-carrying capacity via wavelength spatial-mode division multiplexing, quantum based on multi-mode entanglement usually suffer from low state quality, long measurement times, limited encoding capacity. At same time, certification methods often rely assumptions that compromise security. Here we show photonic high-dimensional transverse position-momentum degree-of-freedom with a record speed, dimensionality, without making any about or channels. Using tailored macro-pixel basis, precise measurements, modified witness, demonstrate fidelities up 94.4% 19-dimensional state-space, 55 local dimensions, an entanglement-of-formation 4 ebits. Furthermore, our times improvement more than two orders magnitude over previous demonstrations. Our results pave way for noise-robust networks saturate single photons.

Language: Английский

Citations

51
Quantum Key Distribution Overcoming Extreme Noise: Simultaneous Subspace Coding Using High-Dimensional Entanglement DOI
Mirdit Doda, Marcus Huber, Gláucia Murta

et al.

Physical Review Applied, Journal Year: 2021, Volume and Issue: 15(3)

Published: March 1, 2021

High-dimensional entanglement promises to increase the information capacity of photons and is now routinely generated, exploiting spatiotemporal degrees freedom single photons. A curious feature these systems possibility certifying despite strong noise in data. We show that it also possible exploit this noisy high-dimensional for quantum key distribution by introducing a protocol uses multiple subspaces system simultaneously. Our can be used establish secret even extremely experimental conditions, where qubit protocols fail. To that, we analyze performance our models apply two most commonly sources entanglement: time bins spatial modes.

Language: Английский

Citations

47
Scheme for Universal High-Dimensional Quantum Computation with Linear Optics DOI Creative Commons
Stefano Paesani, Jacob F. F. Bulmer, Alex E. Jones

et al.

Physical Review Letters, Journal Year: 2021, Volume and Issue: 126(23)

Published: June 11, 2021

Photons are natural carriers of high-dimensional quantum information, and, in principle, can benefit from higher information capacity and noise resilience. However, schemes to generate the resources required for computing have so far been lacking linear optics. Here, we show how GHZ states arbitrary dimensions numbers photons using optical circuits described by Fourier transform matrices. Combining our results with recent qudit Bell measurements, that universal be performed dimensions.

Language: Английский

Citations

38
Certification of a non-projective qudit measurement using multiport beamsplitters DOI
Daniel Martínez, Esteban S. Gómez, Jaime Cariñe

et al.

Nature Physics, Journal Year: 2022, Volume and Issue: unknown

Published: Dec. 22, 2022

Language: Английский

Citations

17
Non-Markovianity in High-Dimensional Open Quantum Systems using Next-generation Multicore Optical Fibers DOI Creative Commons
Santiago Rojas-Rojas, Daniel Martínez, Kei Sawada

et al.

Quantum, Journal Year: 2024, Volume and Issue: 8, P. 1436 - 1436

Published: Aug. 12, 2024

With the advent of quantum technology, interest in communication tasks assisted by systems has increased both academia and industry. Nonetheless, transmission a state real-world scenarios is bounded environmental noise, so that channel an open system. In this work, we study high-dimensional system multicore optical fiber characterizing interaction as operations corresponding to probabilistic phase-flips. The experimental platform currently state-of-the-art for information processing with fibers. At given evolution stage observe non-Markovian behaviour system, which demonstrated through proof-of-principle implementation Quantum Vault protocol. A better understanding phase-noise fibers will improve several protocols, since they are prime candidate be adopted future telecom networks.

Language: Английский

Citations

3
High-Dimensional Bell Test without Detection Loophole DOI
Xiao‐Min Hu, Chao Zhang, Bi‐Heng Liu

et al.

Physical Review Letters, Journal Year: 2022, Volume and Issue: 129(6)

Published: Aug. 3, 2022

Violation of Bell's inequalities shows strong conflict between quantum mechanics and local realism. Loophole-free Bell tests not only deepen understanding mechanics, but are also important foundations for device-independent (DI) tasks in information. High-dimensional systems offer a significant advantage over qubits closing the detection loophole. In symmetric scenario, efficiency as low 61.8% can be tolerated using four-dimensional states four-setting inequality [Phys. Rev. Lett. 104, 060401 (2010)]. For first time, we show that entangled photons violate while loophole experiment. The source is about 71.7%, fidelity state $0.995\ifmmode\pm\else\textpm\fi{}0.001$. Combining technique multicore fibers, realization loophole-free high-dimensional DI technologies promising.

Language: Английский

Citations

14
Experimental Space-Division Multiplexed Polarization-Entanglement Distribution through 12 Paths of a Multicore Fiber DOI Creative Commons
Evelyn A. Ortega, Krishna Dovzhik, Jorge Fuenzalida

et al.

PRX Quantum, Journal Year: 2021, Volume and Issue: 2(4)

Published: Dec. 21, 2021

The development and wide application of quantum technologies highly depend on the capacity communication channels distributing entanglement. Space-division multiplexing (SDM) enhances data channel transmission in classical telecommunication bears potential to transfer idea using current infrastructure. Here, we demonstrate a SDM polarization-entangled photons over 411 m long 19-core multicore fiber photon pairs through up 12 simultaneously. quality multiplexed is evidenced by high polarization visibility Clauser–Horne–Shimony–Holt (CHSH) Bell inequality violation for each pair opposite cores. Our distribution scheme shows stability 24 h without any active stabilization can be effortlessly adapted higher number channels. This technique increases quantum-channel allows reliable implementation networks multiple users based single entangled source.Received 18 August 2021Revised 14 October 2021Accepted November 2021DOI:https://doi.org/10.1103/PRXQuantum.2.040356Published American Physical Society under terms Creative Commons Attribution 4.0 International license. Further this work must maintain attribution author(s) published article's title, journal citation, DOI.Published SocietyPhysics Subject Headings (PhySH)Research AreasQuantum channelsQuantum correlations informationQuantum entanglementQuantum Information

Language: Английский

Citations

18
Low-insertion-loss femtosecond laser-inscribed three-dimensional high-density mux/demux devices DOI Creative Commons
Yize Liang, Chengkun Cai, Kangrui Wang

et al.

Advanced Photonics Nexus, Journal Year: 2023, Volume and Issue: 2(03)

Published: April 12, 2023

Recently, transmitting diverse signals in different cores of a multicore fiber (MCF) has greatly improved the communication capacity single fiber. In such an MCF-based system, mux/demux devices with broad bandwidth are great significance. this work, we design and fabricate 19-channel device based on femtosecond laser direct writing. The fabricated possesses average insertion loss 0.88 dB intercore crosstalk no more than − 29.1 dB. Moreover, features across C+L band. Such enables low-loss 19-core (de)multiplexing over whole band, showing convincing potential value wavelength-space division multiplexing applications. addition, fan-in/fan-out system is also established pair work.

Language: Английский

Citations

7