Molecular magnets; Quantum information processing; Superconducting qubits
Nigg Simon (2016), Correlated voltage probe model of relaxation in two Coulomb-coupled edge channels, in Physica E: Low-dimensional Systems and Nanostructures
, 75, 191-199.
Ehud Amitai Rakesh Tiwari Stefan Walter Thomas Schmidt and Simon E. Nigg (2016), Nonlocal quantum state engineering with the Cooper pair splitter beyond the Coulomb blockade regime, in Physical Review B
, 91, 094516.
Nigg Simon E., Tiwari Rakesh P., Walter Stefan, Schmidt Thomas L. (2015), Detecting nonlocal Cooper pair entanglement by optical Bell inequality violation, in PHYSICAL REVIEW B
, 91(9), 094516.
Nigg Simon E. (2014), Deterministic Hadamard gate for microwave cat-state qubits in circuit QED, in Physical Review A - Atomic, Molecular, and Optical Physics
, 89(2), 022340.
Nigg Simon Lunde Anders Mathias, Decoherence of high-energy electrons in weakly disordered quantum Hall edge states, in Physical Review B, Rapid Communications
J. Z. Blumoff K. Chou C. Shen M. Reagor C. Axline R. T. Bierley M. P. Silveri C. Wang B. Vl, Implementing and characterizing precise multi-qubit measurements, in Physical Review X
Lunde Anders Mathias Nigg Simon, Statistical theory of relaxation of high energy electrons in quantum Hall edge states, in Physical Review B
The laws of physics constrain the task of information processing. The possibility to control matter and light in their quantum states opens a path to investigate how the laws of quantum physics can alter the paradigm of computation and possibly lead to exponential increase in computational efficiency for certain problems. This project aims at furthering our understanding of one very promising architecture for quantum information processing, namely superconducting circuits composed of Josephson junctions and microwave oscillators. In particular we propose to investigate the possibilities to engineer quantum logic operations based on utilizing a geometric phase effect discovered in the early 80's. We also propose to explore possibilities to implement non-linear oscillators with superconducting circuits in a recently demonstrated regime of ultra-strong dispersive coupling between light and matter to study the emergence of chaos in the classical world. Finally, as part of this project we plan to explore the coherence properties of molecular magnet systems coupled to the magnetic field of microwave resonators.