Article (Scientific journals)
Z4 parafermions in one-dimensional fermionic lattices
Calzona, Alessio; Meng, Tobias; Sassetti, Maura et al.
2018In Physical Review. B, Condensed Matter, 98, p. 201110
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Abstract :
[en] Parafermions are emergent excitations which generalize Majorana fermions and are potentially relevant to topological quantum computation. Using the concept of Fock parafermions, we present a mapping between lattice Z4-parafermions and lattice spin-1/2 fermions which preserves the locality of operators with Z4 symmetry. Based on this mapping, we construct an exactly solvable, local one-dimensional fermionic Hamiltonian which hosts parafermionic edge states. We numerically show that the parafermionic phase remains stable in a wide range of parameters, and discuss its signatures in the fermionic spectral function.
Disciplines :
Physics
Author, co-author :
Calzona, Alessio ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) ; University of Genova > Department of Physics
Meng, Tobias;  TU Dresden > Institute of Theoretical Physics
Sassetti, Maura;  University of Genova > Department of Physics
Schmidt, Thomas ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
External co-authors :
yes
Language :
English
Title :
Z4 parafermions in one-dimensional fermionic lattices
Publication date :
16 November 2018
Journal title :
Physical Review. B, Condensed Matter
ISSN :
1095-3795
Publisher :
American Physical Society, New York, United States - Maryland
Volume :
98
Pages :
201110(R)
Peer reviewed :
Peer Reviewed verified by ORBi
Focus Area :
Physics and Materials Science
Available on ORBilu :
since 14 December 2018

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