Ground-State Cooling of a Mechanical Oscillator by Interference in Andreev Reflection
Ground-State Cooling of a Mechanical Oscillator by Interference in Andreev Reflection
We study the ground-state cooling of a mechanical oscillator linearly coupled to the charge of a quantum dot inserted between a normal metal and a superconducting contact. Such a system can be realized, e.g., by a suspended carbon nanotube quantum dot with a capacitive coupling to a gate contact. Focusing …