WEB Nano Saclay
• Flagship 2020-2024 : MaCaCQu (Manipulating Heat Carriers: from the Classical to the Quantum Regime)
MaCaCQu
• Flagship 2020-2024 : MaCaCQu (Manipulating Heat Carriers: from the Classical to the Quantum Regime)

Left: semiconductor micropillar resonator capable of controlling the phonon and photon dynamics. Right: colored SEM image of an hybrid metal-semiconductor circuit to probe electronic heat transfer.

Operating a device generally produces heat, which can alter its performance. This is particularly important in nanoscale quantum systems, since the coupling to thermal baths is reduced and because an increased temperature affects any quantum phenomena through decoherence. Managing and understanding heat at the nanoscale, and ultimately controlling its fundamental carriers constitutes a major on-going scientific and technological challenge. Recent advances in nanoscience and nanotechnology allowed for the fabrication of structures where heat carriers (phonons, electrons, photons), and their mutual interactions can be controlled and engineered. This control in nanostructures allowed us to address and tackle fundamental questions about coherence, complex dynamics, transport, and information exchange. In this project, we aim at pushing the current limits, unveiling not only heat transport mechanisms in nanostructures but also exploring new challenges enabled by the ultimate control of heat carriers.

The project is organized around three main objectives:

  1. To unveil the coherent propagation properties of heat carriers (electrons, phonons, and photons) in nanostructures.
  2. To gain access to different regimes of heat transport and new transduction mechanisms.
  3. To exploit the ultimate control of heat carriers to study non-linear, synchronization, and topological protection phenomena.

The MaCaCQu team gathers 11 research teams working in thermal transport, nanoelectronics, optics, material science, and acoustics at the nanoscale, addressing related problems both from the theoretical and experimental approaches. In the pursuit of the ultimate manipulation of heat carriers, the understanding of the transport properties and the access of novel physical phenomena, MaCaCQu seeks at forming a new and lasting community within the Labex NanoSaclay with international projection.
 

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#204 - Last update : 02/20 2020
 

 

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