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Josephson maser and heat transport in dissipative open quantum systems

Project description

Heat transfer mechanisms in quantum systems hold promise for quantum computing

Quantum systems are not completely isolated from their surroundings. Their interaction with other quantum systems significantly changes their dynamics and results in quantum dissipation. Funded by the Marie Skłodowska-Curie programme, the XmonMASER project will study heat transport in dissipative open quantum systems. It will explore anharmonic effects that occur during heat transport in such systems. Furthermore, the project aims to realise a Josephson maser to demonstrate coherent emission of microwave photons driven by a superconducting transmon qubit. The work will have implications for microelectronics and quantum computing.

Objective

My proposal is devoted to study the heat transport in dissipative open quantum systems. My main scientific and technological goals are: (i) to study the effect of anharmonicity in the heat transport in a dissipative open quantum system; and (ii) to realize a Josephson maser, to demonstrate coherent emission of microwave photons driven by a superconducting transmon qubit. To study heat transport in the quantum limit I propose a device with a qubit coupled to two resonators, each terminated by mesoscopic normal-metal reservoirs acting as source and drain thermal baths. When a thermal bias is applied across the system, the heat is transmitted between the two mesoscopic reservoirs via the qubit, and dissipated in the drain reservoir. With a sufficiently electron temperature in the heated reservoir, the population inversion prerequisite will be satisfied, and the proposed system will work as a maser, allowing for efficient on-chip generation of coherent microwave photons at low temperatures. The proposed system provides a platform to study the heat transport in dissipative open quantum systems, and both spontaneous and stimulated microwave emission. Therefore, I will contribute a pioneering technology to the field of quantum technology, and environment engineering for quantum technologies, in addition to developing a promising tool for quantum thermodynamics. The fundamental knowledge of quantum physics targeted in my proposal will be immediately applicable in several applied fields; the microelectronics industry, quantum computers, and communication sectors, and it will have a great impact on society both in Europe and globally. This fellowship will advance my career plans, enabling me to become an expert in circuit quantum thermodynamics, and receive leadership and management-oriented training. In return, I will transfer my theoretical and experimental knowledge in quantum photonics and optics obtained during my PhD to PICO group.

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Topic(s)

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Funding Scheme

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MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)

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Call for proposal

Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.

(opens in new window) H2020-MSCA-IF-2018

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Coordinator

AALTO KORKEAKOULUSAATIO SR
Net EU contribution

Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.

€ 190 680,96
Address
OTAKAARI 1
02150 Espoo
Finland

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Region
Manner-Suomi Helsinki-Uusimaa Helsinki-Uusimaa
Activity type
Higher or Secondary Education Establishments
Links
Total cost

The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.

€ 190 680,96
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