Ballistic transport is dissipative: the why and how
نویسندگان
چکیده
منابع مشابه
Ballistic transport is dissipative: the why and how
In the ballistic limit, the Landauer conductance steps of a mesoscopic quantum wire have been explained by coherent and dissipationless transmission of individual electrons across a one-dimensional barrier. This leaves untouched the central issue of conduction: a quantum wire, albeit ballistic, has finite resistance and so must dissipate energy. Exactly how does the quantum wire shed its excess...
متن کاملWhy and How Is Compassion Necessary to Provide Good Healthcare? Comments From an Academic Physician; Comment on “Why and How Is Compassion Necessary to Provide Good Quality Healthcare?”
This is a short commentary to the editorial issued by Marianna Fotaki, entitled: “Why and how is compassion necessary to provide good quality healthcare.” It introduces the necessity of a more cognitive approach to explore further the determinants of behavior towards compassionate care. It raises questions about the importance of training towards a more patient-care and values driven healthcare...
متن کاملBallistic charge transport through bio-molecules in a dissipative environment.
The question whether dissipative bio-molecular systems can support efficient coherent (phase-conserving) charge transport is raised again following recent experiments on electron-energy transfer in bio-molecules. In this work we formulate conditions under which the current due to coherent ballistic resonant charge transport through DNA molecular junctions can be measured in spite of coupling to...
متن کاملWhy and How Is Compassion Necessary to Provide Good Quality Healthcare?
Recent disclosures of failures of care in the National Health Service (NHS) in England have led to debates about compassion deficits disallowing health professionals to provide high quality responsive care. While the link between high quality care and compassion is often taken for granted, it is less obvious how compassion – often originating in the individual’s emotional response – can become ...
متن کاملReflection in Nursing Education: Why and How?
Introduction: Nursing education should develop autonomy, critical thinking, open-mindedness and sensitivity to others. Reflection seems to be an effective strategy for developing such capabilities in nursing. Therefore, this narrative review study was carried out to explore reflection in nursing education. Methods: Using keywords like reflecting, reflection and nursing reflection, FarsiandEngl...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Physics: Condensed Matter
سال: 2005
ISSN: 0953-8984,1361-648X
DOI: 10.1088/0953-8984/17/46/n01