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QUANTUM HARVEST SIGNED

Harvesting Non-Classical Fluctuations with Thermal Machines

Total Cost €

EC-Contrib. €

Partnership

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QUANTUM HARVEST project word cloud

Explore the words cloud of the QUANTUM HARVEST project. It provides you a very rough idea of what is the project "QUANTUM HARVEST" about.

lies arise appropriate coupling witnesses equations investigates machine mesoscopic advantage machines fluctuations types efficiency extracted back certify output harvest keldysh settle size question finite thermal investigation thermodynamic extraction heat classicality regime crossover give packages manifest itself action character integrals reservoirs weak master explicitly engine develops picture expansion behavior complementary input engines divided stochastic nanoscopic formalism models thorough complete standard first corresponding quantum gas

Project "QUANTUM HARVEST" data sheet

The following table provides information about the project.

Coordinator	LUNDS UNIVERSITET Organization address address: Paradisgatan 5c city: LUND postcode: 22100 website: n.a. contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.
Coordinator Country	Sweden [SE]
Total cost	185˙857 €
EC max contribution	185˙857 € (100%)
Programme	1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
Code Call	H2020-MSCA-IF-2017
Funding Scheme	MSCA-IF-EF-ST
Starting year	2018
Duration (year-month-day)	from 2018-07-01 to 2020-12-03

Partnership

Take a look of project's partnership.

#	participants	country	role	EC contrib. [€]
1	LUNDS UNIVERSITET LUNDS UNIVERSITET Organization address address: Paradisgatan 5c city: LUND postcode: 22100 website: n.a. contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.	SE (LUND)	coordinator	185˙857.00

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Project objective

The goal of this action is to contribute towards the development of thermal machines which harvest the thermal as well as quantum fluctuations that are present in nanoscopic devices. To this end, a better understanding of fluctuations in thermal machines is required. The present proposal therefore includes a thorough investigation of fluctuations in quantum thermal machines. A focus lies on the non-classical character of these fluctuations and on the extraction of work from quantum heat engines. The proposal is divided into four work packages. In order to certify non-classical behavior, the first work package develops appropriate witnesses of non-classicality. The fluctuations in thermal machines are then investigated in three complementary work packages. Work package two investigates the fluctuations of heat, work, and efficiency in heat engine models. Non-classical behavior is expected to manifest itself in these fluctuations. A novel, Keldysh type input-output formalism will be developed to go beyond the standard regime of weak coupling between machine and thermal reservoirs. Work package three focuses on fluctuations that arise due to the finite size of thermal reservoirs present in mesoscopic systems. To this end, a novel formalism based on stochastic path integrals and quantum master equations will be developed. Work package four finally focuses on the crossover from a classical to a quantum regime. To this end, thermodynamic processes such as the expansion of a gas are investigated. Explicitly taking into account how work is extracted from the system, back-action effects from the corresponding quantum measurement are investigated. Together, these work packages give a rather complete picture on different types of fluctuations in quantum thermal machines. This is expected to settle the open question of a quantum advantage in thermal machines and will likely lead to novel types of machines which harvest thermal as well as quantum fluctuations.

Publications

List of publications.
year	authors and title	journal	last update
2019	Rafael SÃ¡nchez, Peter Samuelsson, Patrick P. Potts Autonomous conversion of information to work in quantum dots published pages: , ISSN: 2643-1564, DOI: 10.1103/PhysRevResearch.1.033066	Physical Review Research 1/3	2020-03-06
2019	Patrick P. Potts, Peter Samuelsson Thermodynamic uncertainty relations including measurement and feedback published pages: , ISSN: 2470-0045, DOI: 10.1103/physreve.100.052137	Physical Review E 100/5	2020-03-06
2019	Potts, Patrick P. Introduction to Quantum Thermodynamics (Lecture Notes) published pages: , ISSN: , DOI:		2020-03-06
2019	Sara Kheradsoud, Nastaran Dashti, Maciej Misiorny, Patrick P. Potts, Janine Splettstoesser, Peter Samuelsson Power, Efficiency and Fluctuations in a Quantum Point Contact as Steady-State Thermoelectric Heat Engine published pages: 777, ISSN: 1099-4300, DOI: 10.3390/e21080777	Entropy 21/8	2020-03-06
2019	Patrick P. Potts Certifying Nonclassical Behavior for Negative Keldysh Quasiprobabilities published pages: , ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.122.110401	Physical Review Letters 122/11	2020-03-06
2018	Patrick P. Potts, Peter Samuelsson Detailed Fluctuation Relation for Arbitrary Measurement and Feedback Schemes published pages: , ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.121.210603	Physical Review Letters 121/21	2020-03-06

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