Title: Davies maps for qubits and qutrits
Authors: Roga, Wojciech ×
Fannes, Mark
Zyczkowski, Karol #
Issue Date: 2010
Publisher: Polish Scientific Publishers
Series Title: Reports on Mathematical Physics vol:66 issue:3 pages:311-329
Abstract: We investigate the dynamics of an N-level quantum system weakly coupled to a thermal reservoir. For any fixed temperature of the bath there exists a natural reference state: the equilibrium state of the system. Among all quantum operations on the system one distinguishes Davies maps, they preserve the equilibrium state, satisfy the detailed balance condition and belong to a semi-group. A complete characterization of the three dimensional set of qubit Davies maps is given. We analyze these maps and find their minimum output entropy. A characterization of Davies maps for qutrits is also provided.
ISSN: 0034-4877
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Theoretical Physics Section
× corresponding author
# (joint) last author

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