Information entropic superconducting microcooler

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

Research output: Contribution to journalArticleScientificpeer-review

32 Citations (Scopus)

Abstract

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
Volume76
Issue number17-1
DOIs
Publication statusPublished - 2007
MoE publication typeA1 Journal article-refereed

Fingerprint

resistors
Resistors
Fluxes
Heat conduction
conductive heat transfer
Energy transfer
Photonics
Resonators
Entropy
selectivity
Metals
resonators
energy transfer
oscillators
Modulation
Thermodynamics
photonics
entropy
low frequencies
Cooling

Keywords

  • qubits
  • superconducting devices

Cite this

Niskanen, Antti ; Nakamura, Y. ; Pekola, J. P. / Information entropic superconducting microcooler. In: Physical Review B: Condensed Matter and Materials Physics. 2007 ; Vol. 76, No. 17-1.
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Information entropic superconducting microcooler. / Niskanen, Antti; Nakamura, Y.; Pekola, J. P.

In: Physical Review B: Condensed Matter and Materials Physics, Vol. 76, No. 17-1, 174523, 2007.

Research output: Contribution to journalArticleScientificpeer-review

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AB - 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.

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KW - superconducting devices

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JO - Physical Review B

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