Information entropic superconducting microcooler

Antti Niskanen, Y. Nakamura, J. P. Pekola

Research output: Contribution to journalArticleScientificpeer-review

52 Citations (Scopus)


We consider a design for a cyclic microrefrigerator using a superconducting flux qubit. Adiabatic modulation of the flux combined with thermalization can be used to transfer energy from a lower temperature normal metal thin film resistor to another one at higher temperature. The frequency selectivity of photonic heat conduction is achieved by including the hot resistor as part of a high frequency LC resonator and the cold one as part of a low-frequency oscillator while keeping both circuits in the underdamped regime. We discuss the performance of the device in an experimentally realistic setting. This device illustrates the complementarity of information and thermodynamic entropy as the erasure of the quantum bit directly relates to the cooling of the resistor.
Original languageEnglish
Article number174523
JournalPhysical Review B: Condensed Matter and Materials Physics
Issue number17-1
Publication statusPublished - 2007
MoE publication typeA1 Journal article-refereed


  • qubits
  • superconducting devices


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