Academic Education
02/2009 - 10/2014	PhD in Physics (Dr. rer. nat.) - Julius-Maximilians-Universität Würzburg
09/2003 - 02/2009	Studies of Physics (Diplom-Physiker Univ.) - Julius-Maximilians-Universität Würzburg
Work Experience
since 10/2025	Professor (Full) for Experimental Quantum Technology - Universität Münster
08/2018 - 09/2025	Research Group Leader (BMFTR Junior Research Group) - Technische Universität Berlin
11/2014 - 07/2018	Researcher (Postdoc) - Technische Universität Berlin
04/2012 - 10/2014	Researcher (PhD Student) - Technische Universität Berlin, Research Group Optoelectronics & Quantum Devices (Prof. Dr. Stephan Reitzenstein)
02/2009 - 03/2012	Wissenschaftlicher Mitarbeiter (PhD Student) - Julius-Maximilians-Universität Würzburg, Chair of Technische Physik (Prof. Dr. Dr. h.c. Alfred Forchel)
Functions and Memberships
since 08/2024	Member, Berlin Scientific Society (BWG)
since 04/2012	Member, Berlin Physical Society (PGzB)
since 06/2003	Member, German Physical Society (DPG)
Appointments
01/2025	Offer to a Photonic Quantum Networks-Professorship for Experimental Quantum Technology (W3) , University of Münster (accepted)

Exploring photon-number-encoded high-dimensional entanglement from a sequentially excited quantum three-level system Vajner DA; Kewitz ND; Helversen M; Wein SC; Karli Y; Kappe F; Remesh V; Silva SFC; Rastelli A; Weihs G; Anton-Solanas C; Heindel T (2025) In: Optica Quantum, 3(1). Research article (journal)
High Purcell Enhancement in Quantum-Dot Hybrid Circular Bragg Grating Cavities for GHz Clock Rate Generation of Indistinguishable Photons Rickert L; Vajner DA; Helversen M; Schall J; Rodt S; Reitzenstein S; Liu H; Li S; Ni H; Niu Z; Heindel T (2025) In: ACS Photonics, 12(1). Research article (journal)
A fiber-pigtailed quantum dot device generating indistinguishable photons at GHz clock-rates Rickert L; Żołnacz K; Vajner DA; Helversen M; Rodt S; Reitzenstein S; Liu H; Li S; Ni H; Wyborski P; Sęk G; Musiał A; Niu Z; Heindel T (2025) In: Nanophotonics, 14(11). Research article (journal)
Solid-state single-photon sources operating in the telecom wavelength range Holewa P; Reiserer A; Heindel T; Sanguinetti S; Huck A; Semenova E (2025) In: Nanophotonics, 14(11). Review article (journal)
Controlling the Photon Number Coherence of Solid-state Quantum Light Sources for Quantum Cryptography Karli Y; Vajner DA; Kappe F; Hagen PCA; Hansen LM; Schwarz R; Bracht TK; Schimpf C; Silva SFC; Walther P; Rastelli A; Axt VM; Loredo JC; Remesh V; Heindel T; Reiter DE; Weihs G (2024) In: npj Quantum Information, 10(1). Research article (journal)

Duration: 14/04/2024 - 14/04/2026 | 1st Funding period

Type of project: Project carried out outside the University of Münster