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Maxwell’s demon in the quantum-Zeno regime and beyond

التفاصيل البيبلوغرافية
العنوان: Maxwell’s demon in the quantum-Zeno regime and beyond
المؤلفون: G Engelhardt, G Schaller
المصدر: New Journal of Physics, Vol 20, Iss 2, p 023011 (2018)
بيانات النشر: IOP Publishing, 2018.
سنة النشر: 2018
المجموعة: LCC:Science
LCC:Physics
مصطلحات موضوعية: Maxwell’s demon, quantum-Zeno effect, feedback control, electronic transport, open quantum systems, Science, Physics, QC1-999
الوصف: The long-standing paradigm of Maxwell’s demon is till nowadays a frequently investigated issue, which still provides interesting insights into basic physical questions. Considering a single-electron transistor, where we implement a Maxwell demon by a piecewise-constant feedback protocol, we investigate quantum implications of the Maxwell demon. To this end, we harness a dynamical coarse-graining method, which provides a convenient and accurate description of the system dynamics even for high measurement rates. In doing so, we are able to investigate the Maxwell demon in a quantum-Zeno regime leading to transport blockade. We argue that there is a measurement rate providing an optimal performance. Moreover, we find that besides building up a chemical gradient, there can be also a regime where the feedback loop additionally extracts energy, which results from the energy non-conserving character of the projective measurement.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1367-2630
Relation: https://doaj.org/toc/1367-2630
DOI: 10.1088/1367-2630/aaa38d
URL الوصول: https://doaj.org/article/05bda55de478417ea6430fe042c06ba8
رقم الأكسشن: edsdoj.05bda55de478417ea6430fe042c06ba8
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:13672630
DOI:10.1088/1367-2630/aaa38d