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The ULT team performs condensed matter experiments in the microkelvin temperature range. We study model systems and develop the state-of-art techniques required by these demanding experiments, building on the capabilities of the Néel laboratory. The physics involved concerns quantum fluids, amorphous matter and fundamental aspects of microwave opto-nano-mechanics. The group is part of the European Microkelvin Platform, a “laboratory without walls” federating ultra-low temperature physics at the European level.
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Position type: Stages Master-2 & Thèse
Contact: Andrew Fefferman - 04.76.88.90.92
The cross-over from atomic-size quantum objects to macroscopic classical systems is remains puzzling. We know that macroscopic quantum states exist (e.g. the quantum coherence of the current state in a superconducting loop), but our knowledge is essentially limited to electromagnetic degrees of freedom. Quantum states of moving objects have undergone relatively little experimental study. One of the goals of our research group, to which the intern would contribute, is cooling a glass nanomechanical resonator to the microkelvin range, so that its fundamental mode reaches the quantum ground state. This is essential for probing low energy excitations present in the amorphous lattice of the resonator.
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Person in charge: Eddy COLLIN
Ilya GOLOKOLENOV
Personnel Chercheur - CNRS
Office: E-405
Referent: Eddy COLLIN
