Constantin Schrade, Ph.D.

Assistant Professor of Physics & Astronomyphoto:schrade

Ph.D., 2017 - Theoretical Physics, University of Basel, Sitzerland

M.S., 2013 - Physics, ETH Zurich, B.S., 2011, Physics, ETH Zurich

Louisiana State University
Department of Physics & Astronomy
447 Nicholson Hall, Tower Dr.

Baton Rouge, LA 70803-4001


Research Interests

Our group, “Theory of Quantum Circuits & Materials“, will focus on the vibrant intersection of superconducting quantum circuits and quantum materials. More specifically, we are interested in the development of novel superconducting qubits and Josephson devices with applications to quantum information processing and superconducting electronics. Although we are a theoretical research group, we maintain active collaborations with many experimental labs. Examples of current research topics include voltage-tunable superconducting qubits, novel qubit control protocols, quantum-limited amplifiers, Josephson diodes, and triple hybrid materials that combine superconductors, ferromagnets, and semiconductors.

If you are interested in joining, please have a look at our webpage and publications. Also, kindly reach out to us via email to learn more and arrange a meeting. 

Current and Selected Publications 

  • Charge-4e supercurrrent in an InAs-Al superconductor-semiconductor heterostructures, Carlo Ciaccia, Roy Haller, Asbjorn C. C. Drachmann, Tyler Lindemann, Michael J. Manfra, Constantin Schrade, Christian Schönenberger, arXiv:2306.05467 (2023) 
  • Josephson diode effect in supercurrent interferometers, Ruben Seoane Souto, Martin Leijnse, and Constantin Schrade. Phys. Rev. Lett. 129 267702 (2022)
  • Entangling transmons with low-frequency protected superconducting qubits, Andrea Maiani, Morten Kjaergaard, and Constantin Schrade, PRX Quantum, 030329 (2022)
  • Protected hybrid superconducting qubit in an array of gate-tunable Josephson interferometers, Constantin Schrade, Charles M. Marcus, and András Gyenis. PRX Quantum 3, 030303 (2022)
  • Quantum Computing with Majorana Kramers Pairs, Constantin Schrade and Liang Fu. Phys. Rev. Lett 129, 227002 (2022)
  • Majorana Superconducting Qubit, Constantin Schrade and Liang Fu. Phys. Rev. Lett 121, 267002 (2018) 
  • Parity-controlled 2π Josephson effect mediated by Majorana Kramers pairs, Constantin Schrade and Liang Fu. Phys. Rev. Lett. 120, 267002 (2018)