Prof. Dr. Peter P. Orth
About me
I am a theoretical condensed matter physicist working on understanding and predicting electronic properties of quantum materials. I place an emphasis on exploring their nonlinear response and nonequilibrium dynamics. My research interests span from correlated phenomena such as frustrated magnetism and unconventional superconductivity to magnetic topological phases and light-driven materials. To address these questions, I employ analytical field theory methods and develop quantum computing algorithms with a focus on implementations on current noisy intermediate-scale quantum hardware.
From 2021-2023, I have served as the deputy director of the U.S. Department of Energy EFRC "Center for the Advancement of Topological Semimetals", where I have focused on finding new ways to realize desired electronic band topologies by controlling magnetic order. Since 2021, I have been a co-leader in the quantum algorithm thrust of the DOE National Quantum Initiative Center on "Superconducting Quantum Materials and Systems", where I develop and implement quantum computing algorithms for many-body systems.
Short Bio
2023 - Present: Professor at Saarland University
 2023 - Present: Affiliate Professor at Iowa State University
 2023 - Present: Contributor at Ames National Laboratory
 01/2023 - 05/2023 : Visiting Scholar in the Department of Physics at Harvard University 
 2021 - 2022: Associate Professor at Iowa State University
 2017 - 2022: Scientist at Ames National Laboratory
 2016 - 2021: Assistant Professor at Iowa State University
 2015 - 2016: Postdoc at University of Minnesota with Prof. Rafael Fernandes
 2012 - 2015: Head of independent Young Investigator Group at Karlsruhe Institute of Technology (KIT), Germany
 2011 - 2015: Postdoc at Karlsruhe Institute of Technology (KIT) with Prof. Joerg Schmalian
 2011: Ph.D. at Yale University, advisor Prof. Karyn Le Hur. Title "Dissipative dynamics and novel quantum phases in strongly correlated cold-atom mixtures"
 2007: Diploma in Physics and Otto-Haxel Prize for Best Diploma at Heidelberg University, Germany. Title "Negative Refraction in dense atomic gases" (supervised by Prof. Dr. C. H. Keitel and Prof. Dr. J. Evers, Max-Planck Institute for Nuclear Physics)
Honors and Awards
- 2022: Kavli Fellow
- 2022: Early Achievement in Research Award of Iowa State University
- 2022: Early Achievement in Teaching Award of the College of Liberal Arts and Sciences (LAS), Iowa State University
- 2021: Most Valuable Instructor Award for Undergraduate Physics at Iowa State University
- 2020: Cottrell Scholarship Award
- 2007: Otto-Haxel-Prize for the best diploma thesis in Physics at Universität Heidelberg, Germany
Selected Publications
- Thaís V. Trevisan, Pablo Villar Arribi, Olle Heinonen, Robert-Jan Slager, Peter P. Orth 
 Bicircular light tuning of magnetic symmetry and topology in Dirac semimetal Cd3As2
 Phys. Rev. Lett. 128, 066602 (2022).
- Noah F. Berthusen, Thaís V. Trevisan, Thomas Iadecola, Peter P. Orth 
 Quantum dynamics simulations beyond the coherence time on noisy intermediate-scale quantum hardware by variational Trotter compression
 Phys. Rev. Research 4, 023097 (2022).
- Yong-Xin Yao, Niladri Gomes, Feng Zhang, Thomas Iadecola, Cai-Zhuang Wang, Kai-Ming Ho, Peter P. Orth 
 Adaptive Variational Quantum Dynamics Simulations
 PRX Quantum 2, 030307 (2021).
- Rafael M. Fernandes, Peter P. Orth, Jörg Schmalian 
 Intertwined vestigial order in quantum materials: nematicity and beyond
 Annu. Rev. Cond. Mat. Phys. 10, 133 (2019).
- Peter P. Orth, Premala Chandra, Piers Coleman, Jörg Schmalian 
 Emergent critical phase and Ricci flow in a 2D frustrated Heisenberg model
 Phys. Rev. Lett. 109, 237205 (2012).