Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Vollrath Martin Axt"'
Autor:
Yusuf Karli, Daniel A. Vajner, Florian Kappe, Paul C. A. Hagen, Lena M. Hansen, René Schwarz, Thomas K. Bracht, Christian Schimpf, Saimon F. Covre da Silva, Philip Walther, Armando Rastelli, Vollrath Martin Axt, Juan C. Loredo, Vikas Remesh, Tobias Heindel, Doris E. Reiter, Gregor Weihs
Publikováno v:
npj Quantum Information, Vol 10, Iss 1, Pp 1-9 (2024)
Abstract Quantum communication networks rely on quantum cryptographic protocols including quantum key distribution (QKD) based on single photons. A critical element regarding the security of QKD protocols is the photon number coherence (PNC), i.e., t
Externí odkaz:
https://doaj.org/article/4e9290a12e6a4484a0ee39c2be930cd3
Autor:
Florian Kappe, Yusuf Karli, Thomas K Bracht, Saimon Filipe Covre da Silva, Tim Seidelmann, Vollrath Martin Axt, Armando Rastelli, Gregor Weihs, Doris E Reiter, Vikas Remesh
Publikováno v:
Materials for Quantum Technology, Vol 3, Iss 2, p 025006 (2023)
Nanoscale bright sources that produce high-purity single photons and high-fidelity entangled photon pairs are the building blocks to realize high security quantum communication devices. To achieve high communication rates, it is desirable to have an
Externí odkaz:
https://doaj.org/article/b965fcdf43a14e289f7fdf986039c47e
Autor:
Moritz Cygorek, Michael Cosacchi, Alexei Vagov, Vollrath Martin Axt, Brendon W. Lovett, Jonathan Keeling, Erik M. Gauger
Publikováno v:
Nature Physics. 18:662-668
Funding: M. Co. and V. M. A. are grateful for funding by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under project No. 419036043. A. V. acknowledges the support from the Russian Science Foundation under the Project 18-12-004
Autor:
Barbara Ursula Lehner, Tim Seidelmann, Gabriel Undeutsch, Christian Schimpf, Santanu Manna, Michał Gawełczyk, Saimon Filipe Covre da Silva, Xueyong Yuan, Sandra Stroj, Doris E. Reiter, Vollrath Martin Axt, Armando Rastelli
Entangled photon pairs are essential for a multitude of photonic quantum applications. To date, the best performing solid-state quantum emitters of entangled photons are semiconductor quantum dots operated around liquid-helium temperatures. To favor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96afb90fe74fce156bcadd5f57ec1595
http://arxiv.org/abs/2212.09529
http://arxiv.org/abs/2212.09529
Autor:
Florian Kappe, Yusuf Karli, Thomas K Bracht, Saimon Covre da Silva, Tim Seidelmann, Vollrath Martin Axt, Armando Rastelli, Gregor Weihs, Doris Reiter, VIKAS REMESH
Nanoscale bright sources that produce high-purity single photons and high-fidelity entangled photon pairs are the building blocks to realize high security quantum communication devices. To achieve high communication rates, it is desirable to have an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a8f021ed6cc9bdb703e7c35afcd2989
http://arxiv.org/abs/2209.08972
http://arxiv.org/abs/2209.08972
Autor:
Yusuf Karli, Florian Kappe, Vikas Remesh, Thomas K. Bracht, Julian Münzberg, Saimon Covre da Silva, Tim Seidelmann, Vollrath Martin Axt, Armando Rastelli, Doris E. Reiter, Gregor Weihs
Publikováno v:
Nano letters. 22(16)
The quest for the perfect single-photon source includes finding the optimal protocol for exciting the quantum emitter. Based on a recently proposed, so-called SUPER (swing-up of quantum emitter population) scheme, we demonstrate experimentally that t
The carrier-phonon interaction in semiconductor quantum dots can greatly affect the optical preparation of the excited state. For resonant excitation used in the Rabi preparation scheme, the polaron is formed accompanied by the emission of a phonon w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0baef9beb45a057d6e85f275d0ce647
http://arxiv.org/abs/2202.06048
http://arxiv.org/abs/2202.06048
Autor:
Thomas K. Bracht, Tim Seidelmann, Yusuf Karli, Florian Kappe, Vikas Remesh, Gregor Weihs, Vollrath Martin Axt, Doris E. Reiter
To coherently control a few-level quantum emitter, typically pulses with an energy resonant to the transition energy are applied making use of the Rabi mechanism, while a single off-resonant pulse does not result in a population inversion. Surprising
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::025b5afb5b8165de818443889b62fbf2
Autor:
Tobias Günther, Christoph Lienau, Thomas Elsaesser, Markus Glanemann, Vollrath Martin Axt, Tilmann Kuhn, Soheyla Eshlagi, Andreas D. Wieck
Publikováno v:
Ultrafast Phenomena XIII ISBN: 9783642639333
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04e8c561c40249a05ff0ca0046f5dc2c
https://doi.org/10.1007/978-3-642-59319-2_107
https://doi.org/10.1007/978-3-642-59319-2_107
Autor:
Vollrath Martin Axt, Bjoern Haase
Publikováno v:
Optical Organic and Inorganic Materials.
Correlations due to biexcitons as well as to two-pair scattering states are direct manifestations of Coulomb quantum kinetics. Effects resulting from the memory structure of the corresponding contributions to the optical interband polarization are an