Zobrazeno 1 - 10
of 159
pro vyhledávání: '"Heindel, Tobias"'
Autor:
Karli, Yusuf, Schwarz, René, Kappe, Florian, Vajner, Daniel A., Krämer, Ria G., Bracht, Thomas K., da Silva, Saimon F. Covre, Richter, Daniel, Nolte, Stefan, Rastelli, Armando, Reiter, Doris E., Weihs, Gregor, Heindel, Tobias, Remesh, Vikas
The generation of single photons using solid-state quantum emitters is pivotal for advancing photonic quantum technologies, particularly in quantum communication. As the field continuously advances towards practical use cases and beyond shielded labo
Externí odkaz:
http://arxiv.org/abs/2409.13981
Autor:
Rickert, Lucas, Żołnacz, Kinga, Vajner, Daniel A., von Helversen, Martin, Rodt, Sven, Reitzenstein, Stephan, Liu, Hanqing, Li, Shulun, Ni, Haiqiao, Wyborski, Paweł, Sęk, Grzegorz, Musiał, Anna, Niu, Zhichuan, Heindel, Tobias
Solid-state quantum light sources based on semiconductor quantum dots (QDs) are increasingly employed in photonic quantum information applications. Especially when moving towards real-world scenarios outside shielded lab environments, the efficient a
Externí odkaz:
http://arxiv.org/abs/2409.08982
Autor:
Rickert, Lucas, Vajner, Daniel A., von Helversen, Martin, Schall, Johannes, Rodt, Sven, Reitzenstein, Stephan, Liu, Hanqing, Li, Shulun, Ni, Haiqiao, Niu, Zhichuan, Heindel, Tobias
We present Purcell-enhanced ($F_\mathrm{P} > 25$) semiconductor InAs quantum dot radiative lifetimes of $T_1 < 30~\mathrm{ps}$, enabled by deterministic hybrid circular Bragg gratings (hCBGs). We investigate the benefits of these short T1 times on th
Externí odkaz:
http://arxiv.org/abs/2408.02543
Autor:
Vajner, Daniel A., Kewitz, Nils D., von Helversen, Martin, Wein, Stephen C., Karli, Yusuf, Kappe, Florian, Remesh, Vikas, da Silva, Saimon F. Covre, Rastelli, Armando, Weihs, Gregor, Anton-Solanas, Carlos, Heindel, Tobias
The sequential resonant excitation of a 2-level quantum system results in the emission of a state of light showing time-entanglement encoded in the photon-number-basis - notions that can be extended to 3-level quantum systems as discussed in a recent
Externí odkaz:
http://arxiv.org/abs/2407.05902
Publikováno v:
Adv. Opt. Photon. 15, 613-738 (2023)
The generation, manipulation, storage, and detection of single photons play a central role in emerging photonic quantum information technology. Individual photons serve as flying qubits and transmit the quantum information at high speed and with low
Externí odkaz:
http://arxiv.org/abs/2309.04229
Autor:
Vajner, Daniel A., Holewa, Paweł, Zięba-Ostój, Emilia, Wasiluk, Maja, von Helversen, Martin, Sakanas, Aurimas, Huck, Alexander, Yvind, Kresten, Gregersen, Niels, Musiał, Anna, Syperek, Marcin, Semenova, Elizaveta, Heindel, Tobias
Publikováno v:
ACS Photonics 11, 339-347 (2024)
Semiconductor quantum dots (QDs) enable the generation of single and entangled photons, useful for various applications in photonic quantum technologies. Specifically for quantum communication via fiber-optical networks, operation in the telecom C-ba
Externí odkaz:
http://arxiv.org/abs/2306.08668
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
Autor:
Holewa, Paweł, Vajner, Daniel A., Zięba-Ostój, Emilia, Wasiluk, Maja, Gaál, Benedek, Sakanas, Aurimas, Burakowski, Marek, Mrowiński, Paweł, Krajnik, Bartosz, Xiong, Meng, Yvind, Kresten, Gregersen, Niels, Musiał, Anna, Huck, Alexander, Heindel, Tobias, Syperek, Marcin, Semenova, Elizaveta
Publikováno v:
Nature Communications 15, 3358 (2024)
Single indistinguishable photons at telecom C-band wavelengths are essential for quantum networks and the future quantum internet. However, high-throughput technology for single-photon generation at 1550 nm remained a missing building block to overco
Externí odkaz:
http://arxiv.org/abs/2304.02515
We introduce stochastic decision Petri nets (SDPNs), which are a form of stochastic Petri nets equipped with rewards and a control mechanism via the deactivation of controllable transitions. Such nets can be translated into Markov decision processes
Externí odkaz:
http://arxiv.org/abs/2303.13344
Publikováno v:
Opt. Express 31, 14750 (2023)
We present a numerical investigation of directly fiber-coupled hybrid circular Bragg gratings (CBGs) featuring electrical control for operation in the application relevant wavelength regimes around 930 nm as well as the telecom O- and C-band. We use
Externí odkaz:
http://arxiv.org/abs/2212.04883