H2020Индивидуална стипендия2020–2022

PReB · Open quantum dynamics via Periodically Refreshed Baths

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2020-05-01 → 2022-04-30
Финансиране от ЕС: 184 591 €
Участници: 1
Схема: MSCA-IF-EF-ST

Линиите свързват координатора с партньорите.

Накратко на български

Квантовите системи в наномащаб, като свръхпроводящи вериги и диамантени центрове, се изследват при воздействие от външна среда. Разработването на теоретични инструменти за тяхното описание помага за преодоляване на пречките пред развитието на квантовите технологии.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Open quantum dynamics via Periodically Refreshed Baths

Modern day technology has enriched our daily life with extremely portable but powerful electronic devices like laptops and mobile phones. One of the key developments which made this possible has been the remarkable miniaturization of electronic circuits. Due to this miniaturization, current cutting-edge technology is on the threshold of encroaching upon length scales where quantum effects are important, requiring the advent of quantum technologies for further progress. In such nanoscale systems, dissipative effects due to the surrounding environment cannot be neglected. This has lead to the advent of noisy solid-state quantum devices on various platforms such as superconducting circuits, molecular junctions, nitrogen-vacancy (NV) centers in diamond etc. Fundamentally, such devices work by taking the system out-of-equilibrium by applying a drive, for example, a voltage bias. Such systems are termed ‘driven dissipative quantum many-body systems’. Though there has been tremendous experimental progress in this direction, theoretical tools for describing such systems have been lagging behind. This severely restricts our understanding of situations already achievable in experiments, thereby creating a bottleneck for development of quantum technology. This project takes steps towards bridging this gap.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

Recent years have seen tremendous experimental progress in realization of quantum devices. Quantum devices are inherently noisy and dissipative because complete isolation from surrounding environment is impossible at such small length scales. Fundamentally, they work by driving the system out of equilibrium, for example, by applying a voltage. This makes them 'driven dissipative many-body quantum systems'. State-of-the-art theoretical and numerical techniques allow exploration of such systems only under very restrictive conditions. This severely limits our understanding of already experimentally realizable situations and their capability for device applications such as energy transfer and heat management. In this project, I propose to develop a new technique, the Periodically Refreshed Baths (PReB) scheme, for open quantum dynamics which will go much beyond the current state-of-the-art methods. It will numerically exactly describe quantum dissipative many-body systems under a constant or time dependent voltage/temperature bias over a wide range of parameters. This will be achieved by combining fundamental concepts from condensed matter physics with those from open quantum systems and incorporating them in state-of-the-art numerical methods for quantum many-body dynamics. The resulting numerical method is expected to find long-term applications in a wide range of problems in quantum physics, biology, chemistry and engineering. In this project, as an application, I propose to use the PReB scheme to extensively explore quantum thermodynamics of one class of intermediate scale quantum systems, which is impossible with current state-of-the-art techniques. This project will thus open access to completely uncharted territories for intense research activities and technological developments.The research will be carried out in the perfectly suited 'Thermodynamics and energetics of Quantum Systems' (QuSys) group of Prof. John Goold at Trinity College Dublin.

Оригинален текст от CORDIS (на английски).

Участници

THE PROVOST, FELLOWS, FOUNDATION SCHOLARS & THE OTHER MEMBERS OF BOARD, OF THE COLLEGE OF THE HOLY & UNDIVIDED TRINITY OF QUEEN ELIZABETH NEAR DUBLIN · DublinКоординаторИрландия