Designing an Experimental Setup to Achieve Superradiance in a Two-Qubit Quantum Heat Valve

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Perustieteiden korkeakoulu | Bachelor's thesis
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Date

2024-09-05

Department

Major/Subject

Quantum Technology

Mcode

SCI3103

Degree programme

Aalto Bachelor’s Programme in Science and Technology

Language

en

Pages

32+9

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Abstract

Heat is a major concern in making efficient quantum devices. In the rapidly evolving field of quantum heat transport, many devices have been proposed and realised to control the flow of heat on the quantum level. One of the most prominent device in this context is a tunable photonic heat valve. In a newly theorised model, there was a proposal of making a more enhanced tunable photonic heat valve using the concept of Superradiance. Therefore, this thesis lays down the steps to design and realise the device suggested in the model. The components of the device which includes two qubits, two coplanar waveguide resonators, two resistive heat baths, and two S-I-N-I-S junctions were designed. The qubits were designed, and simulated to fine tune the parameters. Using the feedback of the simulation, the characterising chip was fabricated. Later, the simulation results were validated, and superradiant states were established through qubit spectroscopy.

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Supervisor

Raasakka, Matti

Thesis advisor

Chiang, Kuan-Hsun

Keywords

quantum thermodynamics, heat current, tunable photonic heat valve, superradiance, qubit design, qubit spectroscopy

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https://urn.fi/URN:NBN:fi:aalto-202411197170

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[kand] Perustieteiden korkeakoulu / SCI