Pasquale Marra, PhD
I am a theoretical condensed matter physicist working as Assistant Professor at
Sophia University, Faculty of Science and Technology.
I am interested in topological states of matter, superconductivity, and quantum computation.
My recent work is focussed on Majorana bound states and emergent supersymmetry in topological superconductors, and more generally 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).
4/2025 - present
Assistant Professor at
Sophia University, Faculty of Science and Technology, and visiting Assistant Professor at the Department of Physics, Keio University, and at the Graduate School of Informatics, Nagoya University (Japan).
12/2019 - 3/2025
Researcher at the Department of Mathematical Sciences,
The University of Tokyo, and visiting researcher at the Department of Physics, Keio University (Japan)
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)
Funding
Grant-in-Aid for Early-Career Scientists (KAKENHI),
Grant number 23K13028
awarded in 2023 by the Japan Society for the Promotion of Science (JSPS)
Grant-in-Aid for Early-Career Scientists (KAKENHI),
Grant number 20K14375
awarded in 2020 by the Japan Society for the Promotion of Science (JSPS)
Education
10/2015
Ph. D. at the Technische Universität Dresden (Germany)
7/2009
Master’s Degree in Physics at the University of Salerno (Italy)
Publications
Topological states of matter
-
"Zero energy modes with gaussian, exponential, or polynomial decay: Exact solutions in hermitian and nonhermitian regimes",
Marra, Nigro,
Progress of Theoretical and Experimental Physics 2025
-
"Topological zero modes and bounded modes at smooth domain walls: Exact solutions and dualities",
Marra, Nigro,
Progress of Theoretical and Experimental Physics 2025 (2), 023A01
arXiv:2408.16466
-
"Majorana modes in striped two-dimensional inhomogeneous topological superconductors", Marra, Inotani, Mizushima, Nitta,
npj Quantum Mater. 9, 59 (2024)
arXiv:2312.08439
Popular summary on Kudos:
Majorana zero modes and topologically nontrivial stripes induced by inhomogeneous superconductivity
and on Springer Nature Research Communities:
Majorana zero modes induced by inhomogeneous superconductivity
-
"Hofstadter-Toda spectral duality and quantum groups", Marra, Proietti, Sheng,
J. Math. Phys. 65, 071903 (2024)
arXiv:2312.14242
Popular summary on Kudos:
An exact formula for the energy spectra of the Hofstadter butterfly
-
"Majorana nanowires for topological quantum computation", Marra
J. Appl. Phys. 132, 231101 (2022)
arXiv:2206.14828
Popular summary on Kudos:
Majorana states in nanowires: towards topological quantum computers
This work is highlighted in the
2022 Early Career Investigator Selection
of the Journal of Applied Physics and on
nLab
-
"Braiding with Majorana lattices: Groundstate degeneracy and supersymmetry", Marra, Inotani, Nitta,
JPS Conf. Proc. 38, 011183 (2023)
arXiv:2207.10103
-
"1D Majorana Goldstinos and partial supersymmetry breaking in quantum wires", Marra, Inotani, Nitta
Commun. Phys. 5, 149 (2022)
arXiv:2106.09039
-
"Dispersive 1D Majorana modes with emergent supersymmetry in 1D proximitized superconductors via spatially modulated potentials and magnetic fields", Marra, Inotani, Nitta
Phys. Rev. B 105, 214525 (2022)
arXiv:2106.09047
-
"Majorana/Andreev crossover and the fate of the topological phase transition in inhomogeneous nanowires", Marra, Nigro
J. Phys.: Condens. Matter 34 124001 (2022)
arXiv:2112.00757
-
"Competition and interplay between topology and quasi-periodic disorder in Thouless pumping of ultracold atoms",
Nakajima, Takei, Sakuma, Kuno, Marra, Takahashi
Nature Physics 17, 844–849 (2021)
arXiv:2007.06817
Thouless ポンプにおける乱れの効果を検証 ―トポロジカル量子現象と乱れの競合と協奏
-
"Topologically quantized current in quasiperiodic Thouless pumps", Marra, Nitta
Phys. Rev. Res. 2, 042035(R) (2020)
arXiv:2001.11022
-
"Topologically nontrivial Andreev bound states", Marra, Nitta
Phys. Rev. B 100, 220502(R) (2019)
arXiv:1907.05416
-
"Degeneracy lifting of Majorana bound states due to electron-phonon interactions", Aseev, Marra, Stano, Klinovaja, Loss
Phys. Rev. B 99, 205435 (2019)
arXiv:1903.12066
-
Editorial for the volume "Topological states of matter: theory and applications", Citro, Marra, Romeo
Eur. Phys. J. Special Topics, 227, 1291–1294 (2018)
-
"A zero-dimensional topologically nontrivial state in a superconducting quantum dot", Marra, Braggio, Citro
Beilstein J. Nanotechnol. 2018, 9, 1705-1714 (2018)
arXiv:1804.06415
-
"Fractional quantization of charge and spin in topological quantum pumps", Marra, Citro
Eur. Phys. J. Spec. Top. 226: 2781 (2017)
arXiv:1703.03815
-
"Controlling Majorana states in topologically inhomogeneous superconductors", Marra, Cuoco
Phys. Rev. B 95, 140504(R) (2017)
arXiv:1606.08450
-
"Signatures of topological phase transitions in Josephson current-phase discontinuities", Marra, Citro, Braggio
Phys. Rev. B 93, 220507(R) (2016)
arXiv:1508.01799
Included in the Highlights 2016 of CNR Institute SPIN (Italy)
-
"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
Unconventional superconductors
-
"Superconductivity induced by structural reorganization in electron-doped cuprate NCCO", Guarino, Autieri, Marra, Leo, Grimaldi, Avella, Nigro
Phys. Rev. B 105, 014512 (2022)
arXiv:2012.13399
-
"Dimensionality of superconductivity in the transition metal pnictide WP", Nigro, Cuono, Marra, Leo, Grimaldi, Liu, Mi, Wu, Liu, Autieri, Luo, Noce
Materials 15(3), 1027 (2022)
arXiv:2009.07849
-
"Resistivity measurements unveil microscopic properties of CrAs", Nigro, Marra, Autieri, Wu, Cheng, Luo, Noce
EPL 125, 57002 (2019)
arXiv:1812.09957
-
"Quenching current by flux-flow instability in iron-chalcogenides thin films", Leo, Grimaldi, Guarino, Avitabile, Marra, Citro, Braccini, Bellingeri, Ferdeghini, Pace, Nigro
IEEE Trans. Appl. Supercond. 27, 7300405 (2017)
arXiv:1706.00772
-
"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)
arXiv:1405.5556
-
"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)
-
"Stability mechanisms of high current transport in iron-chalcogenides superconducting films", Leo, Grimaldi, Marra, Citro, Avitabile, Guarino, Bellingeri, Kawale, Ferdeghini, Nigro, Pace
IEEE Trans. Appl. Supercond. 26, 8001104 (2016)
arXiv:1603.05980
-
"Resonant inelastic x-ray scattering as a probe of the phase and excitations of the order parameter of superconductors", Marra, Sykora, Wohlfeld, van den Brink
Phys. Rev. Lett. 110, 117005 (2013)
arXiv:1212.0112
-
"Unraveling orbital correlations with magnetic resonant inelastic x-ray scattering", Marra, Wohlfeld, van den Brink
Phys. Rev. Lett. 109, 117401 (2012)
arXiv:1205.4940
-
"Fingerprints of orbital physics in magnetic resonant inelastic x-ray scattering", Marra
AIP Conf. Proc. 1485, 297 (2012)
arXiv:1302.5028
-
"Paraconductivity of the K-doped SrFe2As2 superconductor", Marra, Nigro, Li, Chen, Wang, Luo, Noce
New J. Phys. 14, 043001 (2012)
arXiv:1203.6592