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quartz

How to cool a mm-size mechanical resonator to its ground state

We have uploaded a theoretical proposal proposal on cooling the large quartz reosnator by coupling it to a superconducting qubit. Unlike nanomechanical oscillators Bulk Acoustic Wave (BAW) oscillators offer exceptional mechanical properties such as extremely high quality factors. Yet them coupling to qubits it is not easy due to unavoidable large stray capacitance. Our paper investigates a possible solution to this problem which should allow to cool BAW oscillator to its ground state.

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