M
Michael Cosacchi
Researcher at University of Bayreuth
Publications - 27
Citations - 240
Michael Cosacchi is an academic researcher from University of Bayreuth. The author has contributed to research in topics: Photon & Quantum dot. The author has an hindex of 4, co-authored 19 publications receiving 69 citations.
Papers
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Journal ArticleDOI
Emission-Frequency Separated High Quality Single-Photon Sources Enabled by Phonons.
TL;DR: In this article, the single-photon purity of photons emitted from a quantum dot exciton prepared by phonon-assisted off-resonant excitation can be significantly higher in a wide range of parameters than that obtained by resonant preparation for otherwise identical conditions.
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Simulation of open quantum systems by automated compression of arbitrary environments
Moritz Cygorek,Michael Cosacchi,Alexei Vagov,Vollrath M. Axt,Brendon W. Lovett,J. Keeling,Erik M. Gauger +6 more
TL;DR: In this article , the authors present a method for simulating open quantum systems with arbitrary environments that consist of a set of independent degrees of freedom, which can be iteratively constructed and compressed using matrix product state techniques.
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Path-integral approach for nonequilibrium multitime correlation functions of open quantum systems coupled to Markovian and non-Markovian environments
TL;DR: In this paper, a real-time path integral approach was developed to calculate multi-time correlation functions of open few-level quantum systems that are applicable to highly nonequilibrium dynamics.
Journal ArticleDOI
Enhancing quantum cryptography with quantum dot single-photon sources
Mathieu Bozzio,Michal Vyvlečka,Michael Cosacchi,Cornelius Nawrath,Tim Seidelmann,J. C. Loredo,Simone Luca Portalupi,Vollrath M. Axt,Peter Michler,Philip Walther +9 more
TL;DR: In this paper , the authors show that quantum dot-based single-photon sources provide additional security benefits, thanks to the tunability of coherence in the emitted photon-number states.
Journal ArticleDOI
On-demand generation of higher-order Fock states in quantum-dot–cavity systems
Michael Cosacchi,J. Wiercinski,Tim Seidelmann,Moritz Cygorek,A. Vagov,A. Vagov,Doris E. Reiter,Vollrath M. Axt +7 more
TL;DR: In this paper, the authors explore preparation protocols for higher-order photonic Fock states in solid-state quantum-dot-cavity systems and show that higher order Fock state can be obtained using higher order photonic fock states.