Symmetry resolved entanglement in free fermionic systems
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Physics A: Mathematical and Theoretical"
DOI: 10.1088/1751-8121/ab4b77
Abstract: We consider the symmetry resolved Renyi entropies in the one dimensional tight binding model, equivalent to the spin-1/2 XX chain in a magnetic field. We exploit the generalised Fisher-Hartwig conjecture to obtain the asymptotic behaviour… read more here.
Keywords: resolved entanglement; fermionic systems; free fermionic; entanglement free ... See more keywords
Fermionic systems for quantum information people
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Physics A: Mathematical and Theoretical"
DOI: 10.1088/1751-8121/ac0646
Abstract: The operator algebra of fermionic modes is isomorphic to that of qubits, the difference between them is twofold: the embedding of subalgebras corresponding to mode subsets and multiqubit subsystems on the one hand, and the… read more here.
Keywords: information people; systems quantum; fermionic systems; quantum information ... See more keywords
Entanglement spectrum in general free fermionic systems
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Physics A: Mathematical and Theoretical"
DOI: 10.1088/1751-8121/ac5529
Abstract: The statistical mechanics characterization of finite subsystems embedded in an infinite system is a fundamental question of quantum physics. Nevertheless, a full closed form for all required entropic measures does not exist in the general… read more here.
Keywords: free fermionic; physics; fermionic systems; general free ... See more keywords
Topological characterization of one-dimensional open fermionic systems
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review A"
DOI: 10.1103/physreva.98.052101
Abstract: A topological measure characterizing symmetry-protected topological phases in one-dimensional open fermionic systems is proposed. It is built upon the kinematic approach to the geometric phase of mixed states and facilitates the extension of the notion… read more here.
Keywords: temperature; fermionic systems; one dimensional; dimensional open ... See more keywords