Dr. Stefan Pogorzalek

Contact
https://www.meetiqm.com/
Assignments
  • Alumnus/Alumna: Quantum Systems
IDs

 

Stefan Pogorzalek was member of the Gross group at WMI as a Master and Ph.D. Student, as well as a postdoctoral researcher between 2015 and 2021.

Master Thesis: Displacement of Squeezed Propagating Microwave States (October 2015)
Ph.D. Thesis: Remote State Preparation of Squeezed Microwave States (October 2020)

In his Ph.D. thesis, Stefan Pogorzalek realized a deterministic quantum communication protocol using continuous-variable quantum microwaves. He employed Josephson parametric amplifiers to generate single- and two-mode squeezed states and study their properties by state tomography. As the necessary entangled resource, he used two-mode squeezed microwave states to implement remote state preparation and analyzed the communication security in this protocol.

In November 2020, Stefan joined IQM Quantum Computers, Germany, as a Quantum Engineer.

 

Publications of Dr. Stefan Pogorzalek

2023

Quantum behavior of a superconducting Duffing oscillator at the dissipative phase transition
Research Article | Nature Communications 14, 2896  (2023)
Preprint: arXiv:2206.06338
Qi-Ming Chen, Michael Fischer, Yuki Nojiri, Michael Renger, Edwar Xie, Matti Partanen, Stefan Pogorzalek, Kirill G. Fedorov, Achim Marx, Frank Deppe, Rudolf Gross

2022

Flow of quantum correlations in noisy two-mode squeezed microwave states
Research Article | Physical Review A 106, 052415  (2022)
Preprint: arXiv:2207.06090
M. Renger, S. Pogorzalek, F. Fesquet, K. Honasoge, F. Kronowetter, Q. Chen, Y. Nojiri, K. Inomata, Y. Nakamura, A. Marx, F. Deppe, R. Gross, K. G. Fedorov

2021

Beyond the standard quantum limit of parametric amplification
Research Article | npj Quantum Information 7, 160  (2021)
Preprint: arXiv:2011.00914
M. Renger, S. Pogorzalek, Q. Chen, Y. Nojiri, K. Inomata, Y. Nakamura, M. Partanen, A. Marx, R. Gross, F. Deppe, K. G. Fedorov
Experimental quantum teleportation of propagating microwaves
Research Article | Science Advances 7, eabk0891  (2021)
Preprint: arXiv:2103.04155
K. G. Fedorov, M. Renger, S. Pogorzalek, R. Di Candia, Q. Chen, Y. Nojiri, K. Inomata, Y. Nakamura, M. Partanen, A. Marx, R. Gross, F. Deppe
In-situ tunable nonlinearity and competing signal paths in coupled superconducting resonators
Research Article | Physical Review B 103, 094515  (2021)
Preprint: arXiv:2009.13492
Michael Fischer, Qi-Ming Chen, Christian Besson, Peter Eder, Jan Goetz, Stefan Pogorzalek, Michael Renger, Edwar Xie, Michael J. Hartmann, Kirill G. Fedorov, Achim Marx, Frank Deppe, Rudolf Gross

2020

Remote State Preparation of Squeezed Microwave States
PHD Thesis | Technical University of Munich  (2020)
Stefan Pogorzalek
Sideband-resolved resonator electromechanics on the single-photon level based on a nonlinear Josephson inductance
Research Article | Communications Physics 3, 233  (2020)
Preprint: arXiv:1912.08731
Philip Schmidt, Mohammad T. Amawi, Stefan Pogorzalek, Frank Deppe, Achim Marx, Rudolf Gross, Hans Huebl

2019

Quantum Fourier Transform in Oscillating Modes
Research Article | arXiv:1912.09861
Qi-Ming Chen, Frank Deppe, Re-Bing Wu, Luyan Sun, Yu-xi Liu, Yuki Nojiri, Stefan Pogorzalek, Michael Renger, Matti Partanen, Kirill G. Fedorov, Achim Marx, Rudolf Gross
Secure quantum remote state preparation of squeezed microwave states
Research Article | Nature Communications 10, 2604  (2019)
S. Pogorzalek, K. G. Fedorov, M. Xu, A. Parra-Rodriguez, M. Sanz, M. Fischer, E. Xie, K. Inomata, Y. Nakamura, E. Solano, A. Marx, F. Deppe, R. Gross

2018

Compact 3D quantum memory
Research Article | Applied Physics Letters 112, 202601  (2018)
Edwar Xie, Frank Deppe, Michael Renger, Daniel Repp, Peter Eder, Michael Fischer, Jan Goetz, Stefan Pogorzalek, Kirill G. Fedorov, Achim Marx, and Rudolf Gross
Finite-time quantum entanglement in propagating squeezed microwaves
Research Article | Scientific Reports 8, 6416  (2018)
Kirill G. Fedorov, S. Pogorzalek, U. Las Heras, M. Sanz, P. Yard, P. Eder, M. Fischer, J. Goetz, E. Xie, K. Inomata, Y. Nakamura, R. Di Candia, E. Solano, A. Marx, F. Deppe, R. Gross
Parity-engineered light-matter interaction
Research Article | Physical Review Letters 121, 060503  (2018)
Jan Goetz, Frank Deppe, Kirill G. Fedorov, Peter Eder, Michael Fischer, Stefan Pogorzalek, Edwar Xie, Achim Marx, Rudolf Gross
Quantum probe of an on-chip broadband interferometer for quantum microwave photonics
Research Article | Supercond. Sci. Technol. 31, 115002  (2018)
P. Eder, T. Ramos, J. Goetz, M. Fischer, S. Pogorzalek, J. Puertas Martínez, E.P. Menzel, F. Loacker, E. Xie, J.J. Garcia-Ripoll, K.G. Fedorov, A. Marx, F. Deppe, R. Gross

2017

Hysteretic Flux Response and Nondegenerate Gain of Flux-Driven Josephson Parametric Amplifiers
Research Article | Physical Review Applied 8, 024012  (2017)
Stefan Pogorzalek, Kirill G. Fedorov, Ling Zhong, Jan Goetz, Friedrich Wulschner, Michael Fischer, Peter Eder, Edwar Xie, Kunihiro Inomata, Tsuyoshi Yamamoto, Yasunobu Nakamura, Achim Marx, Frank Deppe, Rudolf Gross
Photon Statistics of Propagating Thermal Microwaves
Research Article | Physical Review Letters 118, 103602  (2017)
J. Goetz, S. Pogorzalek, F. Deppe, K. G. Fedorov, P. Eder, M. Fischer, F. Wulschner, E. Xie, A. Marx, R. Gross
Second-order decoherence mechanisms of a transmon qubit probed with thermal microwave states
Research Article | Quantum Sci. Technol. 2, 025002  (2017)
J. Goetz, F. Deppe, P. Eder, M. Fischer, M. Müting, J. P. Martínez, S. Pogorzalek, F. Wulschner, E. Xie, K. G. Fedorov, A. Marx, R. Gross

2016

Displacement of propagating squeezed microwave states
Research Article | Physical Review Letters 117, 020502  (2016)
Kirill G. Fedorov, L. Zhong, S. Pogorzalek, P. Eder, M. Fischer, J. Goetz, E. Xie, F. Wulschner, K. Inomata, T. Yamamoto, Y. Nakamura, R. Di Candia, U. Las Heras, M. Sanz, E. Solano, E. P. Menzel, F. Deppe, A. Marx, R. Gross

2015

Displacement of Squeezed Propagating Microwave States
Master Thesis | Technical University of Munich  (2015)
Stefan Pogorzalek
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