A1 Refereed original research article in a scientific journal
Thermodynamic fingerprints of non-Markovianity in a system of coupled superconducting qubits
Authors: Raja SH, Borrelli M, Schmidt R, Pekola JP, Maniscalco S
Publisher: AMER PHYSICAL SOC
Publication year: 2018
Journal: Physical Review A
Journal name in source: PHYSICAL REVIEW A
Journal acronym: PHYS REV A
Article number: ARTN 032133
Volume: 97
Issue: 3
Number of pages: 8
ISSN: 2469-9926
DOI: https://doi.org/10.1103/PhysRevA.97.032133
Self-archived copy’s web address: https://research.utu.fi/converis/portal/Publication/30993136
Abstract
The exploitation and characterization of memory effects arising from the interaction between system and environment is a key prerequisite for quantum reservoir engineering beyond the standard Markovian limit. In this paper we investigate a prototype of non-Markovian dynamics experimentally implementable with superconducting qubits. We rigorously quantify non-Markovianity, highlighting the effects of the environmental temperature on the Markovian to non-Markovian crossover. We investigate how memory effects influence, and specifically suppress, the ability to perform work on the driven qubit. We show that the average work performed on the qubit can be used as a diagnostic tool to detect the presence or absence of memory effects.
The exploitation and characterization of memory effects arising from the interaction between system and environment is a key prerequisite for quantum reservoir engineering beyond the standard Markovian limit. In this paper we investigate a prototype of non-Markovian dynamics experimentally implementable with superconducting qubits. We rigorously quantify non-Markovianity, highlighting the effects of the environmental temperature on the Markovian to non-Markovian crossover. We investigate how memory effects influence, and specifically suppress, the ability to perform work on the driven qubit. We show that the average work performed on the qubit can be used as a diagnostic tool to detect the presence or absence of memory effects.
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