Ground state cooling of nanomechanical resonators by electron transport
Anno: 2019
Autori: Rastelli G., Belzig W.
Affiliazione autori: Univ Konstanz, Zukunftskolleg, D-78457 Constance, Germany; Univ Konstanz, Fachbereich Phys, D-78457 Constance, Germany.
Abstract: We discuss two theoretical proposals for controlling the nonequilibrium steady state of nanomechanical resonators using quantum electronic transport. Specifically, we analyse two approaches to achieve the ground-state cooling of the mechanical vibration coupled to a quantum dot embedded between (i) spin-polarised contacts or (ii) a normal metal and a superconducting contact. Assuming a suitable coupling between the vibrational modes and the charge or spin of the electrons in the quantum dot, we show that ground-state cooling of the mechanical oscillator is within the state of the art for suspended carbon nanotube quantum dots operating as electromechanical devices.
Giornale/Rivista: EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS
Volume: 227 (15-16) Da Pagina: 1885 A: 1895
Maggiori informazioni: We thank Pascal Stadler for useful discussions. This work was supported by the Excellence Initiative through the Zukunftskolleg and by the DFG through the SFB 767.Parole chiavi: Quantum; SpinDOI: 10.1140/epjst/e2018-800065-2Citazioni: 2dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-06-29Riferimenti tratti da Isi Web of Knowledge: (solo abbonati)
