Zobrazeno 1 - 10
of 7 634
pro vyhledávání: '"Vollrath, A."'
Autor:
McNutt, Brody, Zhang, Libby, Carey-Douglas, Angus, Vollrath, Fritz, Pope, Frank, Brickson, Leandra
This research represents a pioneering application of automated pose estimation from drone data to study elephant behavior in the wild, utilizing video footage captured from Samburu National Reserve, Kenya. The study evaluates two pose estimation work
Externí odkaz:
http://arxiv.org/abs/2411.00196
Semiconductor quantum dots are a versatile source of single photons with tunable properties to be used in quantum-cryptographic applications. A crucial figure of merit of the emitted photons is photon number coherence (PNC), which impacts the securit
Externí odkaz:
http://arxiv.org/abs/2409.08643
Autor:
Richter, Quentin W., Kaspari, Jan M., Bracht, Thomas K., Yatsenko, Leonid, Axt, Vollrath Martin, Rauschenbeutel, Arno, Reiter, Doris E.
With the realization of controlled quantum systems, exploring excitations beyond the resonant case opens new possibilities. We investigate an extended Jaynes-Cummings model where two photon modes are coupled off-resonantly to a quantum emitter. This
Externí odkaz:
http://arxiv.org/abs/2405.20095
Autor:
Clinton, Nicholas, Vollrath, Andreas, D'annunzio, Remi, Liu, Desheng, Glick, Henry B., Descals, Adrià, Sullivan, Alicia, Guinan, Oliver, Abramowitz, Jacob, Stolle, Fred, Goodman, Chris, Birch, Tanya, Quinn, David, Danylo, Olga, Lips, Tijs, Coelho, Daniel, Bihari, Enikoe, Cronkite-Ratcliff, Bryce, Poortinga, Ate, Haghighattalab, Atena, Notman, Evan, DeWitt, Michael, Yonas, Aaron, Donchyts, Gennadii, Shah, Devaja, Saah, David, Tenneson, Karis, Quyen, Nguyen Hanh, Verma, Megha, Wilcox, Andrew
Palm oil production has been identified as one of the major drivers of deforestation for tropical countries. To meet supply chain objectives, commodity producers and other stakeholders need timely information of land cover dynamics in their supply sh
Externí odkaz:
http://arxiv.org/abs/2405.09530
Autor:
Kappe, Florian, Schwarz, René, Karli, Yusuf, Bracht, Thomas, Axt, Vollrath M., Rastelli, Armando, Remesh, Vikas, Reiter, Doris E., Weihs, Gregor
Because dark excitons in quantum dots are not directly optically accessible, so far they have not played a significant role in using quantum dots for photon generation. They possess significantly longer lifetimes than their brighter counterparts and
Externí odkaz:
http://arxiv.org/abs/2404.10708
Autor:
Bracht, Thomas K., Kappe, Florian, Cygorek, Moritz, Seidelmann, Tim, Karli, Yusuf, Remesh, Vikas, Weihs, Gregor, Axt, Vollrath Martin, Reiter, Doris E.
Entangled photon pairs form the foundation for many applications in the realm of quantum communication. For fiber-optic transfer of entangled photon pairs, time-bin encoding can potentially offer an improved stability compared to polarization encoded
Externí odkaz:
http://arxiv.org/abs/2404.08348
Autor:
Nimmesgern, Luca, Cygorek, Moritz, Mielnik-Pyszczorski, Adam, Reiter, Doris E., Vagov, Alexei, Axt, Vollrath Martin
If a two-level system coupled to a single-mode cavity is strongly driven by an external laser, instead of a continuous accumulation of photons in the cavity, oscillations in the mean photon number occur. These oscillations correspond to peaks of fini
Externí odkaz:
http://arxiv.org/abs/2312.03402
Entangled photon pairs are essential for quantum communication technology. They can be generated on-demand by semiconductor quantum dots, but several mechanisms are known to reduce the degree of entanglement. While some obstacles like the finite fine
Externí odkaz:
http://arxiv.org/abs/2307.00304
Artificial intelligence (AI) and machine learning (ML) present revolutionary opportunities to enhance our understanding of animal behavior and conservation strategies. Using elephants, a crucial species in Africa's protected areas, as our focal point
Externí odkaz:
http://arxiv.org/abs/2306.13803
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