Výsledky vyhledávání - "Hansen, Lena"

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Non-classical excitation of a solid-state quantum emitter

Autor: Hansen, Lena M., Giorgino, Francesco, Jehle, Lennart, Carosini, Lorenzo, Carreño, Juan Camilo López, Arrazola, Iñigo, Walther, Philip, Loredo, Juan C.

The interaction between a single emitter and a single photon is a fundamental aspect of quantum optics. This interaction allows for the study of various quantum processes, such as emitter-mediated single-photon scattering and effective photon-photon

Externí odkaz: http://arxiv.org/abs/2407.20936

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Purifying photon indistinguishability through quantum interference

Autor: Faurby, Carlos F. D., Carosini, Lorenzo, Cao, Huan, Sund, Patrik I., Hansen, Lena M., Giorgino, Francesco, Villadsen, Andrew B., Hoven, Stefan N. van den, Lodahl, Peter, Paesani, Stefano, Loredo, Juan C., Walther, Philip

Indistinguishability between photons is a key requirement for scalable photonic quantum technologies. We experimentally demonstrate that partly distinguishable single photons can be purified to reach near-unity indistinguishability by the process of

Externí odkaz: http://arxiv.org/abs/2403.12866

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Controlling the Photon Number Coherence of Solid-state Quantum Light Sources for Quantum Cryptography

Autor: Karli, Yusuf, Vajner, Daniel A., Kappe, Florian, Hagen, Paul C. A., Hansen, Lena M., Schwarz, René, Bracht, Thomas K., Schimpf, Christian, da Silva, Saimon F. Covre, Walther, Philip, Rastelli, Armando, Axt, Vollrath Martin, Loredo, Juan C., Remesh, Vikas, Heindel, Tobias, Reiter, Doris E., Weihs, Gregor

Publikováno v: npj Quantum Inf 10, 17 (2024)

Quantum communication networks rely on quantum cryptographic protocols including quantum key distribution (QKD) using single photons. A critical element regarding the security of QKD protocols is the photon number coherence (PNC), i.e. the phase rela

Externí odkaz: http://arxiv.org/abs/2305.20017

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Programmable multi-photon quantum interference in a single spatial mode

Autor: Carosini, Lorenzo, Oddi, Virginia, Giorgino, Francesco, Hansen, Lena M., Seron, Benoit, Piacentini, Simone, Guggemos, Tobias, Agresti, Iris, Loredo, Juan Carlos, Walther, Philip

Publikováno v: Sci. Adv.10,eadj0993(2024)

The interference of non-classical states of light enables quantum-enhanced applications reaching from metrology to computation. Most commonly, the polarisation or spatial location of single photons are used as addressable degrees-of-freedom for turni

Externí odkaz: http://arxiv.org/abs/2305.11157

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Single-active-element demultiplexed multi-photon source

Autor: Hansen, Lena M., Carosini, Lorenzo, Jehle, Lennart, Giorgino, Francesco, Houvenaghel, Romane, Vyvlecka, Michal, Loredo, Juan C., Walther, Philip

Publikováno v: Optica Quantum 1(1), 1-5 (2023)

Temporal-to-spatial demultiplexing routes non-simultaneous events of the same spatial mode to distinct output trajectories. This technique has now been widely adopted because it gives access to higher-number multi-photon states when exploiting solid-

Externí odkaz: http://arxiv.org/abs/2304.12956

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