I am a theoretical condensed matter physicist at the University of Tokyo.
I am interested in topological states of matter, superconductivity, and quantum computation.
My recent work is focussed on Majorana bound states in topological superconductors, and on the emergence of topological phases induced by spatially modulated fields, in quantum nanostructures as well as in cold atoms trapped by coherent laser beams (optical lattices).
12/2019 - present
Researcher at the Department of Mathematical Sciences,
The University of Tokyo, and visiting researcher at the Department of Physics, Keio University (Japan).
Grant-in-Aid for Early-Career Scientists (KAKENHI),
Grant number 20K14375,
awarded in April 2020 by the Japan Society for the Promotion of Science (JSPS).
4/2019 - 11/2019
Researcher at the Department of Physics, Keio University (Japan).
2/2017 - 3/2019
Researcher in the Quantum System Theory Research Team, RIKEN Center for Emergent Matter Science (Japan).
2/2014 - 10/2016
Researcher at CNR (National Research Council), Salerno (Italy).
4/2010 - 1/2014
Ph. D. student at the Institute for Theoretical Solid State Physics (ITF), IFW Dresden (Germany).
Ph. D. at the Technische Universität Dresden (Germany).
Master’s Degree in Physics at the University of Salerno (Italy).
Topological states of matter
"1D Majorana Goldstinos and extended supersymmetry in quantum wires", Marra, Inotani, Nitta, preprint,
"Dispersive 1D Majorana modes with emergent supersymmetry in 1D proximitized superconductors via spatially-modulated potentials and magnetic fields", Marra, Inotani, Nitta, preprint,
"Fractional quantization of the topological charge pumping in a one-dimensional superlattice", Marra, Citro, Ortix,
Phys. Rev. B 91, 125411 (2015), arXiv:1408.4457
This paper is a Highly Cited Paper according to Thomson Reuters.
As of November/December 2015, this paper received enough citations to place it in the top 1% of its academic field based on a highly cited threshold for the field and publication year.
"Superconductivity induced by structural reorganization in electron-doped cuprate NCCO", Guarino, Autieri, Marra, Leo, Grimaldi, Avella, Nigro, preprint,
"Dimensionality of superconductivity in the transition metal pnictide WP", Nigro, Cuono, Marra, Leo, Grimaldi, Liu, Mi, Wu, Liu, Autieri, Luo, Noce, preprint,
"Theoretical approach to resonant inelastic x-ray scattering in iron-based superconductors at the energy scale of the superconducting gap", Marra, Sykora, van den Brink,
Sci. Rep. 6, 25386 (2016),
"Competition between intrinsic and extrinsic effects in the quenching of the superconducting state in FeSeTe thin films", Leo, Marra, Grimaldi, Citro, Kawale, Bellingeri, Ferdeghini, Pace, Nigro,
Phys. Rev. B 93, 054503 (2016), arXiv:1510.05662
Included in the Highlights 2016 of CNR Institute SPIN (Italy).